Straight Axle Pickup Chevy, GMC Block & U-Bolt Kits

The straight axle pickup with rear leaf springs will often need some rear spring lift after usage and time have taken their toll. We offer a wide array of rear block and u-bolt combinations for these Chevy and GMC models. Custom combinations of blocks and u-bolts are available separately if you don't find what you're looking for here.

Superlift

The Superlift rear block kits include a pair of cast iron blocks along with u-bolts, locking nuts and washers.
Vehicle Year Lift Price Item #  
Pickup 4WD 1 Ton (except Crew Cab and Dually)
3" rear block kit
Pickup 4WD 1 Ton (except Crew Cab and Dually)
1973-87 3"
$119.99
3738-SL
Pickup 4WD 1 Ton (except Crew Cab and Dually)
5" rear block kit
Pickup 4WD 1 Ton (except Crew Cab and Dually)
1973-87 5"
$119.99
3759-SL
Pickup 4WD 1/2 Ton
1.5" rear block kit
Pickup 4WD 1/2 Ton
1969-72 1.5"
$89.99
3516-SL
Pickup 4WD 1/2 Ton
2.5" rear block kit
Pickup 4WD 1/2 Ton
1969-72 2.5"
$89.99
3597-SL
Pickup 4WD 1/2 Ton
3" rear block kit
Pickup 4WD 1/2 Ton
1969-72 3"
$119.99
3538-SL
Pickup 4WD 1/2 Ton
4" rear block kit
Pickup 4WD 1/2 Ton
1969-72 4"
$119.99
3549-SL
Pickup 4WD 1/2 Ton
1.5" rear block kit
Pickup 4WD 1/2 Ton
1973-87 1.5"
$89.99
3016-SL
Pickup 4WD 1/2 Ton
2" rear block kit
Pickup 4WD 1/2 Ton
1973-87 2"
$89.99
3027-SL
Pickup 4WD 1/2 Ton
2.5" rear block kit
Pickup 4WD 1/2 Ton
1973-87 2.5"
$89.99
3097-SL
Pickup 4WD 1/2 Ton
3" rear block kit
Pickup 4WD 1/2 Ton
1973-87 3"
$119.99
3038-SL
Pickup 4WD 1/2 Ton
5" rear block kit
Pickup 4WD 1/2 Ton
1973-87 5"
$119.99
3059-SL
Pickup 4WD 3/4Ton
1.5" rear block kit
Pickup 4WD 3/4Ton
1969-72 1.5"
$89.99
3516-SL
Pickup 4WD 3/4Ton
2.5" rear block kit
Pickup 4WD 3/4Ton
1969-72 2.5"
$89.99
3597-SL
Pickup 4WD 3/4Ton
3" rear block kit
Pickup 4WD 3/4Ton
1969-72 3"
$119.99
3538-SL
Pickup 4WD 3/4Ton
4" rear block kit
Pickup 4WD 3/4Ton
1969-72 4"
$119.99
3549-SL
Pickup 4WD 3/4Ton
1.5" rear block kit
Pickup 4WD 3/4Ton
1973-87 1.5"
$89.99
3316-SL
Pickup 4WD 3/4Ton
2" rear block kit
Pickup 4WD 3/4Ton
1973-87 2"
$89.99
3327-SL
Pickup 4WD 3/4Ton
3" rear block kit
Pickup 4WD 3/4Ton
1973-87 3"
$119.99
3338-SL
Pickup 4WD 3/4Ton
4" rear block kit
Pickup 4WD 3/4Ton
1973-87 4"
$119.99
3349-SL
Pickup 4WD 3/4Ton
5" rear block kit
Pickup 4WD 3/4Ton
1973-87 5"
$119.99
3359-SL

Rough Country

Rough Country rear block kits contain a pair of lifted blocks and 4 u-bolts with nuts and washers.
Vehicle Year Lift Price Item #  
1500 Pickup 2&4WD
2" Rear block kit
1500 Pickup 2&4WD
1973-87 2"
$144.95
6510-HK
1500 Pickup 2&4WD
4.5" Rear block kit
1500 Pickup 2&4WD
1973-87 4.5"
$144.95
6511-HK
1500 Pickup 4WD
1.5" Rear block kit
1500 Pickup 4WD
1969-72 1.5"
$120.95
6531-HK
1500 Pickup 4WD
2" Rear block kit
1500 Pickup 4WD
1969-72 2"
$79.95
6532-HK
1500 Pickup 4WD
3" Rear block kit
1500 Pickup 4WD
1969-72 3"
$144.95
6533-HK
1500 Pickup 4WD
4" Rear block kit
1500 Pickup 4WD
1969-72 4"
$120.95
6515-HK
2500 Pickup 2&4WD
1.5" Rear block kit
2500 Pickup 2&4WD
1973-87 1.5"
$130.95
6536-HK
2500 Pickup 2&4WD
2" Rear block kit
2500 Pickup 2&4WD
1973-87 2"
$134.95
6512-HK
2500 Pickup 2&4WD
3" Rear block kit
2500 Pickup 2&4WD
1973-87 3"
$144.95
6537-HK
2500 Pickup 2&4WD
4.5" Rear block kit
2500 Pickup 2&4WD
1973-87 4.5"
$144.95
6513-HK

Skyjacker

Skyjacker Rear Block Kits include a pair of cast iron blocks with 4 u-bolts, Nylon insert lock nuts and washers.
Vehicle Year Lift Price Item #  
Pickup 1 Ton 4WD (except Crew Cab, Dually)
Block & U-bolt Kit
Pickup 1 Ton 4WD (except Crew Cab, Dually)
1973-87 2"
$115.20
BUK2082-SK
Pickup 1 Ton 4WD (except Crew Cab, Dually)
Block & U-bolt Kit
Pickup 1 Ton 4WD (except Crew Cab, Dually)
1973-87 3.5"
$126.50
BUK3584-SK
Pickup 1 Ton 4WD (except Crew Cab, Dually)
Block & U-bolt Kit
Pickup 1 Ton 4WD (except Crew Cab, Dually)
1973-87 4.5"
$138.16
BUK4584-SK
Pickup 1 Ton Crew Cab 4WD (except Dually)
Block & U-bolt Kit
Pickup 1 Ton Crew Cab 4WD (except Dually)
1973-91 2"
$115.20
BUK2082-SK
Pickup 1 Ton Crew Cab 4WD (except Dually)
Block & U-bolt Kit
Pickup 1 Ton Crew Cab 4WD (except Dually)
1973-91 3.5"
$126.50
BUK3584-SK
Pickup 1 Ton Crew Cab 4WD (except Dually)
Block & U-bolt Kit
Pickup 1 Ton Crew Cab 4WD (except Dually)
1992-98 2"
$115.20
BUK2082-SK
Pickup 1 Ton Crew Cab 4WD (except Dually)
Block & U-bolt Kit
Pickup 1 Ton Crew Cab 4WD (except Dually)
1992-98 3.5"
$126.50
BUK3584-SK
Pickup 1/2T 4WD
Block & U-bolt Kit
Pickup 1/2T 4WD
1973-87 2"
$115.20
BUK2087-SK
Pickup 1/2T, 3/4T 4WD
Block & U-bolt Kit
Pickup 1/2T, 3/4T 4WD
1967-72 2"
$112.85
BUK2080-SK
Pickup 1/2T, 3/4T 4WD
Block & U-bolt Kit
Pickup 1/2T, 3/4T 4WD
1973-87 3.5"
$126.50
BUK3588-SK
Pickup 1/2T, 3/4T 4WD
Block & U-bolt Kit
Pickup 1/2T, 3/4T 4WD
1973-87 4.5"
$138.16
BUK4589-SK
Pickup 1/2T, 3/4T 4WD
Block & U-bolt Kit
Pickup 1/2T, 3/4T 4WD
1973-87 5.5"
$142.49
BUK5589-SK
Pickup 3/4 Ton 8-Lug 4WD
Block & U-bolt Kit
Pickup 3/4 Ton 8-Lug 4WD
1973-87 5.5"
$142.49
BUK5592-SK
© 2024 Rocky Mountain Suspension. All Rights Reserved.  |  Privacy Policy.  |  Website by Bennett Web Group