Featured GMC Truck Lift Kits

1969-1987 Straight Axle

Tuff Country’s straight axle suspension lift kits for the 1969 thru 1987 GMC trucks feature the exclusive EZ-Ride leaf springs. All springs are tapered, snub rolled and pre-set for the most comfortable ride available in a lifted positive arch leaf spring. To reduce squeaking and improve ride characteristics, teflon inserts are also used between each leaf. Available in sizes ranging from 2 inches up to 6 inches of lift. Kits can be purchased with rear leaf springs or rear axle blocks.

GMC 6 inch Lift Kit 16711KN

  • Featuring EZ-Ride Technology for the best ride
  • Replace tired front and rear springs with EZ-Ride leaf springs
  • Available with rear springs or rear cast iron blocks
  • Teflon pads used in leaf springs to eliminate squeaking
  • Leaf springs are tapered, snub rolled and pre-set
  • Limited lifetime warranty on leaf springs
  • Made in the USA

Vehicle Applications

Model Years Size W/O
Shocks
w/SX6000
Shocks
(Hydraulic)
w/SX8000
Shocks
(Gas)
GMC Truck 1500 4wd 1998-1998 2″ 12933 N/A 12933KN
GMC Truck 2 inch Lift Kit 12933KN
Instruction Manual: #12933 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: N/A
Rim Backspacing: Standard
Install Notes: New shocks are optional, not required
GMC Truck 1500/2500 (6 lug only) 1988-1998 6″ 16813 N/A 16813KN
Tuff Country 16813KN
Instruction Manual: #16813 Instructions
Average Install Time: 10 to 12 Hours
Recommended Tire Size: 35″ x 12.5″
Rim Backspacing: 4.5″ or less
Install Notes: New shocks are required.
GMC Truck 2500/3500 4wd (8 lug) 1988-1998 2″ 12921 N/A 12921KN
Tuff Country 12921KN
Instruction Manual: #12921 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: N/A
Rim Backspacing: Standard
Install Notes: New shocks are optional, not required
GMC Truck 2500/3500 (8 lug only) (w/cast lower control arms) 1988-1998 4″ 14823 N/A 14823KN
Tuff Country 14813KN
Instruction Manual: #14823 Instructions
Average Install Time: 10 to 12 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required.

Fits vehicles with cast lower control arms, for vehicles with stamped lower control arms order part # 14824 instead

GMC Truck 2500/3500 (8 lug only) (w/cast lower control arms) 1988-1998 6″ 16823 N/A 16823KN
Tuff Country 16813 6 inch Lift Kit
Instruction Manual: #16823 Instructions
Average Install Time: 10 to 12 Hours
Recommended Tire Size: 35″ x 12.5″
Rim Backspacing: 4.5″ or less
Install Notes: New shocks are required.

Fits vehicles with cast lower control arms, for vehicles with stamped lower control arms order part # 16824 instead

GMC 1/2 ton Truck

EZ-Ride with rear lift blocks
1973-1987 2″ 12710K N/A 12710KN
GMC Truck 2 inch Lift Kit 12710KN
Instruction Manual: #12710 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 32″ x 10.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 ton Truck

EZ-Ride with rear 52″ leaf springs
1973-1987 2″ 12711K N/A 12711KN
GMC Truck 2 inch Lift Kit 12711KN
Instruction Manual: #12711 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 32″ x 10.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 ton Truck

Heavy Duty with rear lift blocks
1973-1987 2″ 12712K N/A 12712KN
GMC Truck 2 inch Lift Kit 12712KN
Instruction Manual: #12712 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 32″ x 10.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 ton Truck

Heavy Duty with 52″ rear leaf springs
1973-1987 2″ 12713K N/A 12713KN
GMC Truck 2 inch Lift Kit 12713KN
Instruction Manual: #12713 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 32″ x 10.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 ton Truck

EZ-Ride with rear lift blocks
1973-1987 3″ 13710K N/A 13710KN
GMC Truck 2 inch Lift Kit 13710KN
Instruction Manual: #13710 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 32″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 ton Truck

EZ-Ride with rear leaf springs
1973-1987 3″ 13711K N/A 13711KN
GMC Truck 3 inch Lift Kit 13711KN
Instruction Manual: #13711 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 ton Truck

EZ-Ride with rear lift blocks
1973-1987 4″ 14710K N/A 14710KN
GMC 4 inch Lift Kit 14710KN
Instruction Manual: #14710 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 ton Truck

EZ-Ride with rear leaf springs
1973-1987 4″ 14711K N/A 14711KN
GMC Truck 4 inch Lift Kit 14711KN
Instruction Manual: #14711 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 ton Truck

Heavy Duty with rear lift blocks
1973-1987 4″ 14712K N/A 14712KN
GMC 4 inch Lift Kit 14712KN
Instruction Manual: #14712 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 ton Truck

Heavy Duty with rear leaf springs
1973-1987 4″ 14713K N/A 14713KN
GMC Truck 4 inch Lift Kit 14713KN
Instruction Manual: #14713 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 32″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 ton Truck

EZ-Ride with rear blocks & add-a-leafs
1973-1987 6″ 16710K N/A 16710KN
6 inch Truck Lift Kit 16710KN
Instruction Manual: #16710 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 35″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required.  Includes drop steering arm.
GMC 1/2 ton Truck

EZ-Ride with rear leaf springs
1973-1987 6″ 16711K N/A 16711KN
GMC 6 inch Lift Kit 16711KN
Instruction Manual: #16711 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 35″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required.  Includes drop steering arm.
GMC 3/4 ton Truck

EZ-Ride with rear lift blocks
1973-1987 2″ 12720K N/A 12720KN
GMC Truck 2 inch Lift Kit 12720KN
Instruction Manual: #12720 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 32″ x 10.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 3/4 ton Truck

EZ-Ride with rear 52″ leaf springs
1973-1987 2″ 12721K N/A 12721KN
GMC Truck 2 inch Lift Kit 12721KN
Instruction Manual: #12721 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 32″ x 10.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 3/4 ton Truck

Heavy Duty with rear lift blocks
1973-1987 2″ 12722K N/A 12722KN
GMC Truck 2 inch Lift Kit 12722KN
Instruction Manual: #12722 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 32″ x 10.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 3/4 ton Truck

Heavy Duty with rear 52″ leaf springs
1973-1987 2″ 12723K N/A 12723KN
GMC Truck 2 inch Lift Kit 12723KN
Instruction Manual: #12723 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 32″ x 10.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 3/4 ton Truck

EZ-Ride with rear lift blocks
1973-1987 3″ 13720K N/A 13720KN
GMC Truck 3 inch Lift Kit 13710KN
Instruction Manual: #13720 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 33 ” x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 3/4 ton Truck

EZ-Ride with rear 52″ leaf springs
1973-1987 3″ 13721K N/A 13721KN
GMC Truck 3 inch Lift Kit 13721KN
Instruction Manual: #13721 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 3/4 ton Truck

EZ-Ride with rear lift blocks
1973-1987 4″ 14720K N/A 14720KN
GMC 4 inch Lift Kit 14720KN
Instruction Manual: #14720 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 3/4 ton Truck

EZ-Ride with rear 52″ leaf springs
1973-1987 4″ 14721K N/A 14721KN
GMC Truck 4 inch Lift Kit 14721KN
Instruction Manual: #14721 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 3/4 ton Truck

EZ-Ride with rear 56″ leaf springs
1973-1987 4″ 14722K N/A 14722KN
GMC Truck 4 inch Lift Kit 14722KN
Instruction Manual: #14722 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 3/4 ton Truck

Heavy Duty with rear lift blocks
1973-1987 4″ 14723K N/A 14723KN
GMC 4 inch Lift Kit 14723KN
Instruction Manual: #14723K Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 3/4 ton Truck

Heavy Duty with rear 52″ leaf springs
1973-1987 4″ 14724K N/A 14724KN
GMC Truck 4 inch Lift Kit 14724KN
Instruction Manual: #14724K Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 3/4 ton Truck

Heavy Duty with rear 56″ leaf springs
1973-1987 4″ 14725K N/A 14725KN
GMC Truck 4 inch Lift Kit 14725KN
Instruction Manual: #14725K Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 3/4 ton Truck

EZ-Ride with rear blocks & add-a-leafs
1973-1987 6″ 16720K N/A 16720KN
6 inch GMC Truck Lift Kit 16710KN
Instruction Manual: #16720 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 35″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required.  Includes drop steering arm.
GMC 3/4 ton Truck

EZ-Ride with rear 52″ leaf springs
1973-1987 6″ 16721K N/A 16721KN
GMC 6 inch Lift Kit 16721KN
Instruction Manual: #16721 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 35″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required.  Includes drop steering arm.
GMC 3/4 ton Truck

EZ-Ride with rear 56″ leaf springs
1973-1987 6″ 16722K N/A 16722KN
GMC 6 inch Lift Kit 16722KN
Instruction Manual: #16722 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 35″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required.  Includes drop steering arm.
GMC 1/2 & 3/4 ton Truck

EZ-Ride with rear lift blocks
1969-1972 2″ 12610K N/A 12610KN
GMC 2 inch Lift Kit 12610KN
Instruction Manual: #12610 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 32″ x 10.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 & 3/4 ton Truck

EZ-Ride with rear 52″ leaf springs
1969-1972 2″ 12612K N/A 12612KN
GMC Truck 2 inch Lift Kit 12612KN
Instruction Manual: #12612 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 32″ x 10.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 & 3/4 ton Truck

Heavy Duty with rear lift blocks
1969-1972 2″ 12611K N/A 12611KN
GMC Truck 2 inch Lift Kit 12611KN
Instruction Manual: #12611 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 32″ x 10.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 & 3/4 ton Truck

Heavy Duty with 52″ rear leaf springs
1969-1972 2″ 12613K N/A 12613KN
GMC Truck 2 inch Lift Kit 12613KN
Instruction Manual: #12613 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 32″ x 10.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 & 3/4 ton Truck

EZ-Ride with rear lift blocks
1969-1972 4″ 14610K N/A 14610KN
GMC 4 inch Lift Kit 14610KN
Instruction Manual: #14610 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 & 3/4 ton Truck

EZ-Ride with rear 52″ leaf springs
1969-1972 4″ 14612K N/A 14612KN
GMC Truck 4 inch Lift Kit 146121KN
Instruction Manual: #14612 Instructions
Average Install Time: 4 to 6 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 & 3/4 ton Truck

Heavy Duty with rear lift blocks
1969-1972 4″ 14611K N/A 14611KN
GMC 4 inch Lift Kit 14611KN
Instruction Manual: #14611 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 & 3/4 ton Truck

Heavy Duty with rear 52″ leaf springs
1969-1972 4″ 14613K N/A 14613KN
GMC Truck 4 inch Lift Kit 14613KN
Instruction Manual: #14613 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 33″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required
GMC 1/2 & 3/4 ton Truck

EZ-Ride with rear blocks & add-a-leafs
1969-1972 6″ 16610K N/A 16610KN
6 inch GMC Truck Lift Kit 16610KN
Instruction Manual: #16610 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 35″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required.  Includes drop steering arm.
GMC 1/2 & 3/4 ton Truck

EZ-Ride with rear leaf springs
1969-1972 6″ 16611K N/A 16611KN
GMC 6 inch Lift Kit 16611KN
Instruction Manual: #16611 Instructions
Average Install Time: 6 to 8 Hours
Recommended Tire Size: 35″ x 12.5″
Rim Backspacing: Standard
Install Notes: New shocks are required.  Includes drop steering arm.

The Tuff Country Difference

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PRODUCTS PROUDLY MADE IN THE USA

Unlike most of our competitors, our products are not made overseas, but right here in the USA.   We sacrifice margins to bring the consumer a better product.


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OUR FOREVER GUARANTEE

The quality speaks for itself and we back it up. Our products include a Lifetime Warranty that gives you confidence when hitting the pavement or the trail.  Some limitations do apply.  (Details)


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RIDE QUALITY MATTERS TO US

Just because you have a lifted vehicle does not mean you ride quality has to be sacrificed.  Our lift kits and leveling kits are engineering to maintain a factory or near factory ride on most applications.


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INSTALLATION MADE EASIER

Nobody ever said that suspension modifications where a piece of cake.  We engineer our suspension kits with ease of installation a key factor in the design.


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EXPERTS SINCE 1989

For over 25 years we have produced top quality suspension lift kits, leveling kits and other suspension components. Our experienced staff know truck suspensions inside and out.