ReadyLIFT 4'' Lift Kit (2015-2021 Toyota Tundra TRD Pro 4WD) (44-5640) ReadyLIFT 4'' Lift Kit (2015-2021 Toyota Tundra TRD Pro 4WD) (44-5640) ReadyLIFT Suspensions IMPORTANT: ALWAYS READ ENTIRE PRODUCT DESCRIPTION, INCLUDING NOTES AND FITMENT INFORMATION, BEFORE MAKING PURCHASE. Overview TRD Pro Plus 4" Lift Kit System. 2015-2021 Tundra TRD PRO Only 2wd/4wd. Made in USA. Allows for up to 35" tall tires. Retains use of both front and rear factory Bilstein/Fox shocks Install time: approx 6-10 hours. Retain stock turning radius. Allows for use of stock 20" wheels. Will not work with the TRD rear sway bar option. Details TRD Pro Plus 4 Complete Lift Kit! ReadyLIFT 4" Lift Kit Available For 2015-2021 Toyota Tundra TRD Pro Trucks! ReadyLIFT delivers a great Pro Plus 4 lift kit that will provide 4" of front lift to TRD Pro Tundra trucks that come factory with 2" of front lift. That equals the same height as our 6" lift kit on a standard Tundra. And even better, this kit allows you to retain use of the factory Bilstein/Fox coil-overs and reservoir rear shocks! That's right, this great new system retains use of ALL of the factory TRD Pro suspension components.Note: For use only on 2015-2021 Tundra TRD Pro w/ Bilstein/Fox coilover shocksNote: Will not work with the TRD rear swar bar option.Note: Cannot use the factory front skid plate.Note: Factory Wheels - This system will only work with factory 20" wheels - Will not work with some factory 18" wheels. Properly sized aftermarket wheels okay.The 44-5640 Pro Plus 4 inch lift kit for Tundra TRD Pro trucks is packed full of the same great features found in our standard Tundra 6" lift kit! Starting with our ultra strong laser cut, CNC bent, welded and boxed sub frame drop assemblies that not only keep your suspension geometry where it is suppose to be, but also increase your ground clearance 2 inches over the competition! Our unique and precision-designed iron knuckles feature CNC machining to guarantee precise fit while allowing for retention of the factory tie rods. That means no cutting or replacing your tie rods - ever! The 4 inches of lift is created by our innovative and industry-leading offset top mount spacer design. These strong steel spacers attach to the factory Bilstein/Fox coilover/strut - resulting in a factory ride - while positioning the suspension in such a way as to not increase track width. What does that mean? It means your front tires won't stick out further than your rear tires like with other kits. AND it means you can run your stock wheels with stock tires and use your spare tire if needed. That is some serious added value for you!Our sub assembly design features a truly innovative approach to dropping the differential. Our diff drop kit is engineered for easy installation - easiest on the market - and correctly positions the differential to maintain great CV axle and drive line angles. This kit has been engineered around developing and offering a top quality lift solution for Tundra TRD Pro owners. We sought to correct so many of the issues that exist with other Tundra lift kits on the market. With our 44-5640 Pro Plus 4" lift kit you can rest assured you will not be wearing out those tires. Our system is built around maintaining correct alignment and geometry specifications. That is something both you and your installer will love! For the rear this kit includes our time-tested OEM-style cast iron rear lift blocks and longer u-bolts with hardware. Additionally, we also include bump stop extensions all the way around as well as sway bar frame mount brackets to keep the front sway bar in a factory position. And to keep you driving on those high-quality Bilstein/Fox reservoir shocks, we include our popular shock stem extensions that extend the installed length of the shock without altering the compressed and extended length. All of this contributes to an excellent driving and handling suspension system that truly compliments your Tundra TRD Pro truck!How big of a tire can you run? We recommend 35" as the maximum on a 9" wheel with a +25 offset for the least chance of rubbing. (Front mud flaps may need to be removed depending on the tread design of the tire.) Tire Fitment 35" Maximum tire diameter35x12.50 for no rub on a 9" wide wheel with +25 offsetTire Size Note: ReadyLIFT wheel and tire fitment recommendations are typically based on Wheel Pros wheels and Nitto tires. Due to product differences among tire manufacturers, tire specifications and dimensions including, but limited to, overall diameter, rolling diameter, tread width, aspect ratio, lug pattern, sidewall construction and inflation pressure, will vary meaningfully by tire and wheel manufacturer. Every tire and wheel combination should be test fit prior to installation. Consult your local installer to learn more about the right tire fitment for your application.Ride Quality Note: When lifting a vehicle and installing aftermarket wheels and tires, a tire manufacturer's construction and material quality can alter vehicle ride quality. When increasing a vehicle wheel and tire size, most larger aftermarket truck and SUV tires are 10-ply (or more) E tires compared to typical OEM 6-ply C tires. This more rigid sidewall construction increases the perception of suspension stiffness often described as ride harshness. The ride, handling, traction, noise, fuel economy, and wear differences between All-Season, All-Terrain, Mud-Terrain, or Trail-Terrain type tires can be significant. Please take into account tire and wheel choice will generally have a meaningful impact on the ride & handling experience. Kit Components (2) Iron ductile knuckles engineered to allow for use of the factory tie rods (2) top mount strut extensions (2) laser cut and boxed steel dropped crossmembers (2) sway bar drop spacers (4) bump stop extensions OEM style cast iron rear lift blocks with new u-bolts Complete easy-to-install differential drop mount system (1) skid plate (2) rear Bilstein shock stem extensions Installation Instructions (PDF) Est. Installation Time: 12 Hours +/- 1 hour (excluding alignment and wheel/tire assembly)

ReadyLIFT 4'' Lift Kit (2015-2021 Toyota Tundra TRD Pro 4WD) (44-5640)

Code: 44-5640
$1,999.95
In Stock
  • FREE SHIPPING

  • 30 DAY RETURNS

  • LIVE SUPPORT

IMPORTANT: ALWAYS READ ENTIRE PRODUCT DESCRIPTION, INCLUDING NOTES AND FITMENT INFORMATION, BEFORE MAKING PURCHASE.


Overview

  • TRD Pro Plus 4" Lift Kit System.
  • 2015-2021 Tundra TRD PRO Only
  • 2wd/4wd.
  • Made in USA.
  • Allows for up to 35" tall tires.
  • Retains use of both front and rear factory Bilstein/Fox shocks
  • Install time: approx 6-10 hours.
  • Retain stock turning radius.
  • Allows for use of stock 20" wheels.
  • Will not work with the TRD rear sway bar option.

Details

TRD Pro Plus 4 Complete Lift Kit! ReadyLIFT 4" Lift Kit Available For 2015-2021 Toyota Tundra TRD Pro Trucks! ReadyLIFT delivers a great Pro Plus 4 lift kit that will provide 4" of front lift to TRD Pro Tundra trucks that come factory with 2" of front lift. That equals the same height as our 6" lift kit on a standard Tundra. And even better, this kit allows you to retain use of the factory Bilstein/Fox coil-overs and reservoir rear shocks! That's right, this great new system retains use of ALL of the factory TRD Pro suspension components.

Note: For use only on 2015-2021 Tundra TRD Pro w/ Bilstein/Fox coilover shocks

Note: Will not work with the TRD rear swar bar option.

Note: Cannot use the factory front skid plate.

Note: Factory Wheels - This system will only work with factory 20" wheels - Will not work with some factory 18" wheels. Properly sized aftermarket wheels okay.

The 44-5640 Pro Plus 4 inch lift kit for Tundra TRD Pro trucks is packed full of the same great features found in our standard Tundra 6" lift kit! Starting with our ultra strong laser cut, CNC bent, welded and boxed sub frame drop assemblies that not only keep your suspension geometry where it is suppose to be, but also increase your ground clearance 2 inches over the competition! Our unique and precision-designed iron knuckles feature CNC machining to guarantee precise fit while allowing for retention of the factory tie rods. That means no cutting or replacing your tie rods - ever! The 4 inches of lift is created by our innovative and industry-leading offset top mount spacer design. These strong steel spacers attach to the factory Bilstein/Fox coilover/strut - resulting in a factory ride - while positioning the suspension in such a way as to not increase track width. What does that mean? It means your front tires won't stick out further than your rear tires like with other kits. AND it means you can run your stock wheels with stock tires and use your spare tire if needed. That is some serious added value for you!
Our sub assembly design features a truly innovative approach to dropping the differential. Our diff drop kit is engineered for easy installation - easiest on the market - and correctly positions the differential to maintain great CV axle and drive line angles. This kit has been engineered around developing and offering a top quality lift solution for Tundra TRD Pro owners. We sought to correct so many of the issues that exist with other Tundra lift kits on the market. With our 44-5640 Pro Plus 4" lift kit you can rest assured you will not be wearing out those tires. Our system is built around maintaining correct alignment and geometry specifications. That is something both you and your installer will love! For the rear this kit includes our time-tested OEM-style cast iron rear lift blocks and longer u-bolts with hardware. Additionally, we also include bump stop extensions all the way around as well as sway bar frame mount brackets to keep the front sway bar in a factory position. And to keep you driving on those high-quality Bilstein/Fox reservoir shocks, we include our popular shock stem extensions that extend the installed length of the shock without altering the compressed and extended length. All of this contributes to an excellent driving and handling suspension system that truly compliments your Tundra TRD Pro truck!
How big of a tire can you run? We recommend 35" as the maximum on a 9" wheel with a +25 offset for the least chance of rubbing. (Front mud flaps may need to be removed depending on the tread design of the tire.)


Tire Fitment

35" Maximum tire diameter

35x12.50 for no rub on a 9" wide wheel with +25 offset

Tire Size Note: ReadyLIFT wheel and tire fitment recommendations are typically based on Wheel Pros wheels and Nitto tires. Due to product differences among tire manufacturers, tire specifications and dimensions including, but limited to, overall diameter, rolling diameter, tread width, aspect ratio, lug pattern, sidewall construction and inflation pressure, will vary meaningfully by tire and wheel manufacturer. Every tire and wheel combination should be test fit prior to installation. Consult your local installer to learn more about the right tire fitment for your application.

Ride Quality Note: When lifting a vehicle and installing aftermarket wheels and tires, a tire manufacturer's construction and material quality can alter vehicle ride quality. When increasing a vehicle wheel and tire size, most larger aftermarket truck and SUV tires are 10-ply (or more) E tires compared to typical OEM 6-ply C tires. This more rigid sidewall construction increases the perception of suspension stiffness often described as ride harshness. The ride, handling, traction, noise, fuel economy, and wear differences between All-Season, All-Terrain, Mud-Terrain, or Trail-Terrain type tires can be significant. Please take into account tire and wheel choice will generally have a meaningful impact on the ride & handling experience.


Kit Components

  • (2) Iron ductile knuckles engineered to allow for use of the factory tie rods
  • (2) top mount strut extensions
  • (2) laser cut and boxed steel dropped crossmembers
  • (2) sway bar drop spacers
  • (4) bump stop extensions
  • OEM style cast iron rear lift blocks with new u-bolts
  • Complete easy-to-install differential drop mount system
  • (1) skid plate
  • (2) rear Bilstein shock stem extensions

Installation

Instructions (PDF)

Est. Installation Time: 12 Hours +/- 1 hour (excluding alignment and wheel/tire assembly)

IMPORTANT: ALWAYS READ ENTIRE PRODUCT DESCRIPTION, INCLUDING NOTES AND FITMENT INFORMATION, BEFORE MAKING PURCHASE.


Overview

  • TRD Pro Plus 4" Lift Kit System.
  • 2015-2021 Tundra TRD PRO Only
  • 2wd/4wd.
  • Made in USA.
  • Allows for up to 35" tall tires.
  • Retains use of both front and rear factory Bilstein/Fox shocks
  • Install time: approx 6-10 hours.
  • Retain stock turning radius.
  • Allows for use of stock 20" wheels.
  • Will not work with the TRD rear sway bar option.

Details

TRD Pro Plus 4 Complete Lift Kit! ReadyLIFT 4" Lift Kit Available For 2015-2021 Toyota Tundra TRD Pro Trucks! ReadyLIFT delivers a great Pro Plus 4 lift kit that will provide 4" of front lift to TRD Pro Tundra trucks that come factory with 2" of front lift. That equals the same height as our 6" lift kit on a standard Tundra. And even better, this kit allows you to retain use of the factory Bilstein/Fox coil-overs and reservoir rear shocks! That's right, this great new system retains use of ALL of the factory TRD Pro suspension components.

Note: For use only on 2015-2021 Tundra TRD Pro w/ Bilstein/Fox coilover shocks

Note: Will not work with the TRD rear swar bar option.

Note: Cannot use the factory front skid plate.

Note: Factory Wheels - This system will only work with factory 20" wheels - Will not work with some factory 18" wheels. Properly sized aftermarket wheels okay.

The 44-5640 Pro Plus 4 inch lift kit for Tundra TRD Pro trucks is packed full of the same great features found in our standard Tundra 6" lift kit! Starting with our ultra strong laser cut, CNC bent, welded and boxed sub frame drop assemblies that not only keep your suspension geometry where it is suppose to be, but also increase your ground clearance 2 inches over the competition! Our unique and precision-designed iron knuckles feature CNC machining to guarantee precise fit while allowing for retention of the factory tie rods. That means no cutting or replacing your tie rods - ever! The 4 inches of lift is created by our innovative and industry-leading offset top mount spacer design. These strong steel spacers attach to the factory Bilstein/Fox coilover/strut - resulting in a factory ride - while positioning the suspension in such a way as to not increase track width. What does that mean? It means your front tires won't stick out further than your rear tires like with other kits. AND it means you can run your stock wheels with stock tires and use your spare tire if needed. That is some serious added value for you!
Our sub assembly design features a truly innovative approach to dropping the differential. Our diff drop kit is engineered for easy installation - easiest on the market - and correctly positions the differential to maintain great CV axle and drive line angles. This kit has been engineered around developing and offering a top quality lift solution for Tundra TRD Pro owners. We sought to correct so many of the issues that exist with other Tundra lift kits on the market. With our 44-5640 Pro Plus 4" lift kit you can rest assured you will not be wearing out those tires. Our system is built around maintaining correct alignment and geometry specifications. That is something both you and your installer will love! For the rear this kit includes our time-tested OEM-style cast iron rear lift blocks and longer u-bolts with hardware. Additionally, we also include bump stop extensions all the way around as well as sway bar frame mount brackets to keep the front sway bar in a factory position. And to keep you driving on those high-quality Bilstein/Fox reservoir shocks, we include our popular shock stem extensions that extend the installed length of the shock without altering the compressed and extended length. All of this contributes to an excellent driving and handling suspension system that truly compliments your Tundra TRD Pro truck!
How big of a tire can you run? We recommend 35" as the maximum on a 9" wheel with a +25 offset for the least chance of rubbing. (Front mud flaps may need to be removed depending on the tread design of the tire.)


Tire Fitment

35" Maximum tire diameter

35x12.50 for no rub on a 9" wide wheel with +25 offset

Tire Size Note: ReadyLIFT wheel and tire fitment recommendations are typically based on Wheel Pros wheels and Nitto tires. Due to product differences among tire manufacturers, tire specifications and dimensions including, but limited to, overall diameter, rolling diameter, tread width, aspect ratio, lug pattern, sidewall construction and inflation pressure, will vary meaningfully by tire and wheel manufacturer. Every tire and wheel combination should be test fit prior to installation. Consult your local installer to learn more about the right tire fitment for your application.

Ride Quality Note: When lifting a vehicle and installing aftermarket wheels and tires, a tire manufacturer's construction and material quality can alter vehicle ride quality. When increasing a vehicle wheel and tire size, most larger aftermarket truck and SUV tires are 10-ply (or more) E tires compared to typical OEM 6-ply C tires. This more rigid sidewall construction increases the perception of suspension stiffness often described as ride harshness. The ride, handling, traction, noise, fuel economy, and wear differences between All-Season, All-Terrain, Mud-Terrain, or Trail-Terrain type tires can be significant. Please take into account tire and wheel choice will generally have a meaningful impact on the ride & handling experience.


Kit Components

  • (2) Iron ductile knuckles engineered to allow for use of the factory tie rods
  • (2) top mount strut extensions
  • (2) laser cut and boxed steel dropped crossmembers
  • (2) sway bar drop spacers
  • (4) bump stop extensions
  • OEM style cast iron rear lift blocks with new u-bolts
  • Complete easy-to-install differential drop mount system
  • (1) skid plate
  • (2) rear Bilstein shock stem extensions

Installation

Instructions (PDF)

Est. Installation Time: 12 Hours +/- 1 hour (excluding alignment and wheel/tire assembly)

IMPORTANT COVID-19 NOTE: 
Our warehouses are open and continuing to ship orders. However, please note that nearly all automotive parts manufacturers, distribution centers, and logistics centers face backorders and delays in order fulfillment.
 
If an item is unexpectedly out of stock or delayed, Lift Kits 4 Vets will make an effort to notify the customer, provide order status updates, and expedite the fulfillment process. If you have any questions pertaining to your order status, please use the Contact link above. We thank you for your patience and understanding.
 
Product Availability

To check stock levels, use our Live-Chat feature or Contact page. See the Lead Times tab for average order fulfillment times by manufacturer.

Note that some items ship directly from the manufacturer. For these items, the manufacturer may not provide real-time inventory data to Lift Kits 4 Vets and backorders are possible. If an item is unavailable, Lift Kits 4 Vets will contact the buyer with an estimated ship date. In the event of excessive manufacturer backorders or delays, Lift Kits 4 Vets may opt to cancel the order and provide a full refund.

Shipping

Lift Kits 4 Vets provides shipping within the contiguous 48 states only. For orders outside of this area, please use the Contact page prior to placing your order. Items shipped by ground or LTL generally arrive within 1-5 days from date of shipment. Lift Kits 4 Vets is not responsible for carrier shipping delays.

Returns & Refunds

Items in their original condition may be returned within 30 days from the date of purchase for a full refund. Items may NOT be returned once packaging has been opened or the item has been installed, otherwise used, or damaged. The buyer is responsible for all return shipping charges. Returns and refunds may be requested through the Contact page.

Note: Do NOT ship items back until you have received a return authorization, as items may be returned to a facility other than their point of origin. Refunds will generally be processed within 48 business hours of receipt at our warehouse in order to allow for inspection and processing.

Product Data
Lift Kits 4 Vets provides product data (including but not limited to item descriptions, important notes, and fitment information) as a courtesy only. This information is provided by product manufacturers and is assumed to be accurate at the time of publishing. Though Lift Kits 4 Vets may periodically audit and update some product information based upon manufacturer's published data revisions, Lift Kits 4 Vets does not guarantee the accuracy of any product data. Lift Kits 4 Vets reserves the right to update product data as necessary and without notice, and will not be held responsible for misprints, or changes/variations made by vehicle manufacturers. Customers should consult the product manufacturer's website for the most up-to-date product data.
 
Markdown & Open Box Items
Markdown and Open Box items are offered at a discount as they have either been overstocked, slightly damaged, and/or returned from a previous customer. Items are sold "as-is." Lift Kits 4 Vets will indicate any damage found during the inspection process. Please note that this does not guarantee that all defects have been identified. Sales for all items in this category are final. No refunds, exchanges, or replacements are permitted. Some manufacturers may continue to warranty such items; however, the purchaser accepts that some manufacturers may not extend warranties to items in this category. Please refer to the individual product manufacturer's warranty page for details.

F.A.Q.
How do I request a return?
Use the Contact page, ensuring to include your order number, contact information, items for return, and reason for return. One of our team members will contact you with return shipping details and instructions. Additional information and documentation may be required.
Note: Some items must be returned directly to the manufacturer. Please do not ship items to  Lift Kits 4 Vets prior to return authorization and return instructions.

How do I request a replacement for a missing or damaged part?
Upon receipt, please inspect all orders for completion, accuracy, and damage. If packaging appears to be damaged, ensure to photograph the damage, as this may be required for a shipping carrier claim.
Use the Contact page, ensuring to include your order number, contact information, and description of the incorrect or damaged part(s). One of our team members will contact you to correct the issue.

What product warranties does Lift Kits 4 Vets offer?
Product warranties are solely offered by product manufacturers. Please refer to the product manufacturer's warranty statement. In the event of a warranty claim,  Lift Kits 4 Vets is available to assist with the manufacturer's required documentation. Please use the Contact page if assistance is required.
Estimated order processing times for in-stock items.
To check stock levels, use our Live-Chat feature or Contact page.
 
 Manufacturer Estimated Lead Time
BDS Suspension
1-2 Days
Morimoto 1-2 Days
ReadyLIFT Suspensions 1-7 Days
Rough Country 1-2 Days
Zone Offroad 1-2 Days