Pro Comp Suspension 58101 Features: Complete w/New Hi-Nuts and Extra Thick Washers Usually Adequate for Stock Leaf Spring Packs Usually Adequate for Aftermarket Leaf Spring Packs Height: 16.00 Width: 5.00 Length: 5.00 Weight: 8.00 lbs Fitment: 1978/GMC/K15 Suburban/Sierra Grande Sport Utility 4-Door/6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated::Front^^1978/GMC/K15 Suburban/Sierra Classic Sport Utility 4-Door/6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated::Front^^1978/GMC/K15 Suburban/High Sierra Sport Utility 4-Door/6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated::Front^^1978/GMC/K15 Suburban/Base Sport Utility 4-Door/6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated::Front^^1977/GMC/K15 Suburban/Sierra Grande Sport Utility 4-Door/6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated::Front, Made On or Before 6-30-76^^1977/GMC/K15 Suburban/Sierra C...