Home / Shop / ReadyLift Suspension Leveling Kits for 2012-2021 TUNDRA - 66-5251 Leveling, Strut Extension, Front, 3 in., Toyota, Kit

ReadyLift Suspension Leveling Kits for 2012-2021 TUNDRA - 66-5251 Leveling, Strut Extension, Front, 3 in., Toyota, Kit

SKU: RLS66-5251

Suspension Leveling & Lift Kits

Readylift Suspension

ReadyLift Suspension Leveling Kits for 2012-2021 TUNDRA - 66-5251 Leveling, Strut Extension, Front, 3 in., Toyota, Kit

SKU: RLS66-5251

Suspension Leveling & Lift Kits

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

ReadyLift Suspension leveling kits are the fastest, safest, and least expensive way to level your truck or make room for oversized wheels and tires as large as 37 in. on most full size trucks (varies by vehicle).

Regardless of your suspension, get up to 3 in. of lift without a major hassle or sacrificing ride quality and comfort. ReadyLift thoroughly tests each kit to ensure that your truck will be leveled without overloading or adding excessive strain to any of your factory suspension components.

Additional features of ReadyLift Suspension leveling kits:

* Custom-designed for your specific year, make, and model
* Ideal for eliminating sag caused by a winch, heavy bumper, or plow
* Most kits cost 1/3 less than their competition.
* Fast, simple installation takes about 1/3 the time of other kits
* Steel kits have a durable powdercoated finish
* Aluminum kits are corrosion-resistant
* Coil spring spacers, expertly indexed forged torsion key spacers, and steel tower extensions are available
* Custom, progressive-wound coil springs are offered for specific applications
* Torsion keys have up to a 100 rating on the Rockwell(B) index scale, 25 percent stronger than most OEM torsion keys
* All mounting hardware is included

Note: A wheel alignment is recommended after installation of your new ReadyLift leveling kit.

Part Type

Suspension Leveling & Lift Kits

Data: v4.2 - Upd: 2026-10-15 04:50:16

Specifications

Product Attributes - Brand: ReadyLift Suspension
Product Attributes - Manufacturer's Part Number: 66-5251
Product Attributes - Part Type: Suspension Leveling & Lift Kits
Product Attributes - Product Line: ReadyLift Suspension Leveling Kits
Product Attributes - UPC: 804879495031
Product Attributes - Front Lifted Amount Range (in): 3.00
Product Attributes - Rear Lifted Amount Range (in): 0.00
Product Attributes - Lift Style: Suspension Leveling Kit
Product Attributes - Primary Front Lift Component: Strut extension
Product Attributes - Max Tire Height (in): 33.00
Product Attributes - Max Tire Width (in): 12.50
Product Attributes - Suggested Wheel Width (in): 9.00
Product Attributes - Suggested Wheel Backspace (in): 6.00
Product Attributes - Front Shocks/Struts Included: No
Product Attributes - Rear Shocks/Struts Included: No
Product Attributes - Brake Lines Included: No
Product Attributes - Hardware Included: Yes
Product Attributes - FMVSS 126 Certification: No
Product Attributes - Quantity: Sold as a kit.
Product Attributes - Notes: Includes sway bar drop brackets.

Reference Information

Brand Name/s	Readylift Suspension
StreetFX SKU	rls66-5251
SFX Item ID	5008853
Supplier Item Code	5008853
Manufacturer SKU	66-5251
Manufacturer UPC	804879495031

Compatibility

Application Data

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2014
Body Style	Crew Cab Pickup
CC	5663
CID	345
Drivetrain	4WD
Ending Year	2018
Engine Family	Toyota V8
Engine Size	5.7L/345
Engine Type	V8
Liter	5.7
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	1794 EDITION

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2014
Body Style	Crew Cab Pickup
CC	5663
CID	345
Drivetrain	RWD
Ending Year	2018
Engine Family	Toyota V8
Engine Size	5.7L/345
Engine Type	V8
Liter	5.7
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	1794 EDITION

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2014
Body Style	Crew Cab Pickup
CC	5663
CID	345
Drivetrain	4WD
Ending Year	2021
Engine Family	Toyota V8
Engine Size	5.7L/345
Engine Type	V8
Liter	5.7
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	1794 EDITION

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2014
Body Style	Crew Cab Pickup
CC	5663
CID	345
Drivetrain	RWD
Ending Year	2021
Engine Family	Toyota V8
Engine Size	5.7L/345
Engine Type	V8
Liter	5.7
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	1794 EDITION

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Crew Cab Pickup
CC	3956
CID	241
Drivetrain	4WD
Ending Year	2013
Engine Family	Toyota V6
Engine Size	4.0L/241
Engine Type	V6
Liter	4.0
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Extended Cab Pickup
CC	3956
CID	241
Drivetrain	4WD
Ending Year	2013
Engine Family	Toyota V6
Engine Size	4.0L/241
Engine Type	V6
Liter	4.0
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Standard Cab Pickup
CC	3956
CID	241
Drivetrain	4WD
Ending Year	2013
Engine Family	Toyota V6
Engine Size	4.0L/241
Engine Type	V6
Liter	4.0
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Crew Cab Pickup
CC	3956
CID	241
Drivetrain	RWD
Ending Year	2013
Engine Family	Toyota V6
Engine Size	4.0L/241
Engine Type	V6
Liter	4.0
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Extended Cab Pickup
CC	3956
CID	241
Drivetrain	RWD
Ending Year	2013
Engine Family	Toyota V6
Engine Size	4.0L/241
Engine Type	V6
Liter	4.0
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Standard Cab Pickup
CC	3956
CID	241
Drivetrain	RWD
Ending Year	2013
Engine Family	Toyota V6
Engine Size	4.0L/241
Engine Type	V6
Liter	4.0
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Crew Cab Pickup
CC	4608
Drivetrain	4WD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	4.6L/4608cc
Engine Type	V8
Liter	4.6
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Extended Cab Pickup
CC	4608
Drivetrain	4WD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	4.6L/4608cc
Engine Type	V8
Liter	4.6
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Standard Cab Pickup
CC	4608
Drivetrain	4WD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	4.6L/4608cc
Engine Type	V8
Liter	4.6
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Crew Cab Pickup
CC	4608
Drivetrain	RWD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	4.6L/4608cc
Engine Type	V8
Liter	4.6
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Extended Cab Pickup
CC	4608
Drivetrain	RWD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	4.6L/4608cc
Engine Type	V8
Liter	4.6
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Standard Cab Pickup
CC	4608
Drivetrain	RWD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	4.6L/4608cc
Engine Type	V8
Liter	4.6
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Crew Cab Pickup
CC	5663
CID	345
Drivetrain	4WD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	5.7L/345
Engine Type	V8
Liter	5.7
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Crew Cab Pickup
CC	5663
CID	345
Drivetrain	4WD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	5.7L/345
Engine Type	V8
Liter	5.7
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Extended Cab Pickup
CC	5663
CID	345
Drivetrain	4WD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	5.7L/345
Engine Type	V8
Liter	5.7
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Extended Cab Pickup
CC	5663
CID	345
Drivetrain	4WD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	5.7L/345
Engine Type	V8
Liter	5.7
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Standard Cab Pickup
CC	5663
CID	345
Drivetrain	4WD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	5.7L/345
Engine Type	V8
Liter	5.7
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Standard Cab Pickup
CC	5663
CID	345
Drivetrain	4WD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	5.7L/345
Engine Type	V8
Liter	5.7
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Crew Cab Pickup
CC	5663
CID	345
Drivetrain	RWD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	5.7L/345
Engine Type	V8
Liter	5.7
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Crew Cab Pickup
CC	5663
CID	345
Drivetrain	RWD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	5.7L/345
Engine Type	V8
Liter	5.7
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

Application Notes	Front Leveling Kit; 3 in. Lift; Incl. Sway Bar Drop Brackets
Beginning Year	2012
Body Style	Extended Cab Pickup
CC	5663
CID	345
Drivetrain	RWD
Ending Year	2013
Engine Family	Toyota V8
Engine Size	5.7L/345
Engine Type	V8
Liter	5.7
Make	TOYOTA
Model	TUNDRA
Region	USA
Submodel	BASE

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ReadyLift Suspension Leveling Kits for 2012-2021 TUNDRA - 66-5251 Leveling, Strut Extension, Front, 3 in., Toyota, Kit

ReadyLift Suspension Leveling Kits for 2012-2021 TUNDRA - 66-5251 Leveling, Strut Extension, Front, 3 in., Toyota, Kit

Description

Part Type

Specifications

Reference Information

Compatibility

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