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Choose your trim in My Garage to confirm exact fit.
Exact-fit parts for the 1988 GMC K1500 Sierra SLX.
Tuff Country
Part # 10890
$511.87
Timbren
Part # GMRCK35MA
$398.07
Energy Suspension
Part # 3.1129G
$97.40
Edelbrock
Part # 5802
$67.75
Yukon Gear & Axle
Part # YSPCS-016
$9.89
Air Lift
Part # 84201
$208.56
Yukon Gear & Axle
Part # YSPXPGM9.5
$37.89
Hellwig
Part # 3510
$405.04
Rancho
Part # RS8628
$7.08
Yukon Gear & Axle
Part # SK SS10
$47.89
SPC Performance
Part # 86350
$90.29
Energy Suspension
Part # 3.1131R
$196.44
Skyjacker
Part # R1120
$128.84
Yukon Gear & Axle
Part # YSPCS-014
$9.89
Air Lift
Part # 74000
$778.99
Energy Suspension
Part # 3.4123G
$121.66
COMP Cams
Part # 950-16
$191.67
Energy Suspension
Part # 3.1145R
$66.93
Firestone
Part # 2025
$519.15
Hellwig
Part # 61912
$482.15
This page groups parts listed for the 1988 GMC K1500 Sierra SLX. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.
We offer a wide selection of suspension & steering parts for the 1988 GMC K1500 Sierra SLX. This page narrows the catalog to the year, make, and model; use your trim on product pages to confirm exact fit when a part only fits certain submodels.
We carry parts from trusted brands including Energy Suspension, Moog, Prothane, Yukon Gear & Axle, and Edelbrock, plus many more. Filter by brand to find your preferred manufacturer.
Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.
Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.
