Greasable Rear Spring Bushing Kit, 1-3/4" and 1-1/2" Spring Eyes
Greaseable rear spring bushing kit for 1-3/4" and 1-1/2" Spring eyes
As low as
$88.00
SKU
GU38001-B
These kits consist of grooved polyurethane bushings, drilled grade 8 bolts with grease zerks, and drilled DOM steel sleeves. Each kit replaces the bushings/sleeves/bolts at both ends of both springs.
If you don't know what your inside diameter eye size is here is a quick way to find out.
Measure the Outside diameter of the spring eye, then measure the thickness of the main leaf.
Subtract 2x's the thickness of the leaf from the outside diameter. That should result in your inside diameter.
Shackle bushing size:
Most '80 and older Chevy trucks use a 1-1/2" shackle bushing.
Most '81-'87 1/2 ton Chevy trucks and '81-'91 1/2 ton Suburbans and Blazers used a 1-3/8" shackle bushing.
Most '81-'87 3/4 ton Chevy trucks as well as '81-'91 3/4 ton Suburbans and K30's use 1-1/2" shackle bushings.
Spring eye size:
52" rear springs came in '67-'87 1/2 ton GM trucks, '69-'91 Blazers, most 1/2 ton '67-'91 Suburbans and rarely in '73-87 3/4 ton pickups. Most use 1.5" bushings at each spring eye, but the '88-91 Blazers and Suburbans could have 1.5" or metric (~1.7") spring eyes.
56" rear springs came in the rear of all '76-'91 K30's, most '67-'87 K20's, most 3/4 ton Suburbans and rarely in 1/2 ton Suburbans. Most use a 1-3/4" bushing at the front and a 1-1/2" bushing at the back, but we have seen sets that had 1-3/4" eyes at both ends and metric (~1.7") eyes at both ends. If the eyes are different sizes, they should be 1-3/4" and 1-1/2", if they're the same size you'll need to measure.
64" springs from an '88 and newer GM trucks have become a popular swap. The '88-'98 springs use a 43mm metric spring bushing at each end. At this point we do not have bushings for '99 and newer springs.
8" Superlift rear springs use a unique bushing.