ReadyLift P/N 44-5640

Full-Size Lift Kits

Description

The ReadyLIFT Pro Plus 4 lift kit is specifically designed for 2015-2021 Toyota Tundra TRD Pro trucks, offering a 4" front lift while retaining the original 2" factory lift, equating to a total height similar to a 6" lift on standard Tundras. This kit allows continued use of factory Bilstein/Fox coil-overs and reservoir rear shocks, and maintains all factory TRD Pro suspension components. It is compatible exclusively with 2015-2021 Tundra TRD Pro models equipped with Bilstein/Fox coilover shocks, but incompatible with the TRD rear sway bar option and the factory front skid plate. The kit requires factory 20" wheels and is not suitable for some factory 18" wheels, though properly sized aftermarket wheels are acceptable. The 44-5640 Pro Plus 4 inch lift kit features laser cut, CNC bent, welded, and boxed subframe drop assemblies that enhance suspension geometry and increase ground clearance by 2 inches. Its iron knuckles are CNC machined for a precise fit and allow retention of factory tie rods, eliminating the need for cutting or replacement. The 4 inches of lift is achieved through offset top mount spacer design attached to the factory coilover/strut, ensuring a factory ride quality and maintaining the original track width. The kit includes a differential drop kit for easy installation and correct positioning of the differential, preserving optimal CV axle and drive line angles. It focuses on maintaining proper alignment and geometry specifications, thereby reducing tire wear. The rear of the kit contains OEM-style cast iron rear lift blocks, longer u-bolts with hardware, bump stop extensions, sway bar frame mount brackets, and shock stem extensions for the Bilstein/Fox reservoir shocks. The kit supports up to 35" tires on a 9" wheel with a +25 offset, minimizing the risk of rubbing. Removal of front mud flaps may be necessary depending on tire tread design.

4" Lift Kit - Toyota Tundra TRD Pro 2015-2021

Specifications

BrandReadyLift
Part Number44-5640
FitmentDirect Fitment
Front Lift ComponentSpacer
Front Lift Height4 Inches
Front or RearFront and Rear
Install DifficultyDifficult Requires Professional Installation
Installation TimeAbout 5 hours
Max Tire Size35 Inch
Rear Lift ComponentBlock and U-bolt
Rear Lift Height4 Inches
Weight278 lbs

Vehicle Fitment

Year(s)MakeModelSubmodel
2015-2017, 2019-2021ToyotaTundraTRD Pro
ReadyLift P/N 44-5640

Full-Size Lift Kits

$2,099.95

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5 in stock!
In our warehouses — we’ll bring it to your local H&H store, usually 1–3 days
If an item can't be sourced, a refund will be given and the order will be canceled.

Free pickup at an H&H store Free — we'll bring it to your store, usually 1–3 days
Professional installation available
We install this! Suspension, wheel and tire labor varies a lot by vehicle and setup - contact your local store for an exact installation quote.
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Free store pickupReady at your local H&H
22 storesAcross the Southeast
Family-ownedServing trucks since 1987
Installation availableAsk your store for a quote
4.8
5,571 reviews
Customer Reviews

Rated 4.8 across 22 stores

Every review below is a verified Google review of an H&H store — written by real customers about the people who sold, fitted and stood behind their gear.

Warner Robins · 4 hours ago

Expert work. Quick turn-around. Have always trusted H&H with all my different trucks and the add-ons I wanted.

Pelham · 4 hours ago

Jason at the Pelham location was great. After installation of a bed cover was done, we noticed some parts were removed but not put back in place. He went out of his way to fix the issue. Also some end caps were cracked during the installation and he is getting replacement parts for me at no charge. Will definitely go back to them the next time I'm looking to add some updates to my truck.

Cumming · 5 hours ago

Great experience! Got me in at my booked time. Said it would take an hour, they were done is 40 minutes. Friendly and even showed me photos of the install. Highly recommend for bike hitch install.

Pensacola · 6 hours ago

I have been a customer of H&H for years and have always been given the VIP treatment. Staff are friendly, helpful and professional. Quality products and quality service. Go see them today, you'll be better off.

Fultondale · 11 hours ago

I must say I hate having to deal with things to do with the truck, however the sweetest gentleman was very attentive and not only put on the hitch, but put on the lift and found a needed screw, as well as he took the time to show me all the necessary steps to be successful. Great service, nice people, check them out for sure.

Marietta · 1 day ago

The staff is friendly and helpful. They went out of their way to make sure I got a warranty part replaced. Their communication is professional and they completed the work in a timely manner and it looks wonderful! Thanks!

Gainesville · 1 day ago

Great service. Super quick install.

Trussville · 2 days ago

Love the new look

B K
Conyers · 3 days ago

Eric was a pleasure to work with on my LEER top! Capable service guys installed my top and it looks great. Thank you!

Reviews of H&H Truck & Outdoor stores, sourced from Google. They rate our stores and service, not this individual product.