View our Specials! Coupon Code: SaveIn2026
Looking for in-stock aftermarket parts to modify or upgrade your 1978 GMC C25 with bushing kits? At Tunersports.com we carry a huge selection of the top name brand performance bushing kit parts and accessories.
 IN STOCK - LOW 3.4103GWill replace distorted and worn-out original rubber mounts to maintain car body and truck cab to bed alignment. Original rubber mounts are so soft they often crack, distort, and crush so badly they often fall off! And aluminum body mounts are too harsh for street use that they tend to break and caus... Energy Suspension 73-80 GM C2500/C3500/K1500/K20/K30 Body(cab) Mount Set 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $121.66 |
 IN STOCK 3.4140GWill replace distorted and worn-out original rubber mounts to maintain car body and truck cab to bed alignment. Original rubber mounts are so soft they often crack, distort, and crush so badly they often fall off! And aluminum body mounts are too harsh for street use that they tend to break and caus... Energy Suspension Black Body Cab Mount Set for 73-80 GM C/K-10/20/30 C/K1500/2500/3500 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $156.97 |
 IN STOCK 3.1130GEnergy Suspension continues to be the World leader in performance polyurethane suspension technology. Dedication to manufacturing and developing superior products has established Energy Suspension as the most asked-for name in performance polyurethane components today. The complex and diverse nature... Energy Suspension 73-92 Chevrolet Camaro Black Motor and Transmission Mounts; Zinc Finish 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $116.23 |
 IN STOCK 3.6117GMade of superior Hyper-Flex ™ material. Saves replacing again and again, lasting 3 to 10 times longer. Assemble to chassis the same way as OEM isolators and do not adversely change ride characteristics.... Energy Suspension GM SBC Black Radiator Isolator Pad Set - 3 Row 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $40.91 |
 IN STOCK 3.6118GMade of superior Hyper-Flex ™ material. Saves replacing again and again, lasting 3 to 10 times longer. Assemble to chassis the same way as OEM isolators and do not adversely change ride characteristics.... Energy Suspension GM BBC Black Radiator Isolator Pad Set - 4 Row 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $40.91 |
 IN STOCK 19-1714Prothane Universal Tie Rod End Boots .650X1.625in - Red 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $28.74 |
 IN STOCK 7-104-BLProthane 73-80 GM Body Mount 12 Bushing Kit - Black 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $117.50 |
 IN STOCK - LOW 7-104Prothane 73-80 GM Body Mount 12 Bushing Kit - Red 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $117.50 |
 IN STOCK 7-1711-BLProthane 68-87 GM Small Block Radiator Isolators - Black 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $40.23 |
 IN STOCK 7-1712-BLProthane 68-87 GM Big Block Radiator Isolators - Black 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $40.65 |
 IN STOCK 7-1711Prothane 68-87 GM Small Block Radiator Isolators - Red 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $40.23 |
 IN STOCK - LOW 7-1712Prothane 68-87 GM Big Block Radiator Isolators - Red 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $40.65 |
 IN STOCK 7-1001-BLProthane 67-87 GM Rear Spring & Shackle Bushings (w/ 1.5in Bushings) - Black 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $72.22 |
 IN STOCK 7-1001Prothane 67-87 GM Rear Spring & Shackle Bushings (w/ 1.5in Bushings) - Red 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $72.22 |
 IN STOCK - DROPSHIPS W93491Whiteline bushings are made tough and offer outstanding abrasion resistance, high load bearing capability (4WDG??s, utes and towing), flexibility, increased tensile strength and chemical resistance to oil, grease, ozone and weathering.... Whiteline 1973-1974 Chevrolet C20 Pickup Body Mount Bushing Kit 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $99.88 |
 IN STOCK - DROPSHIPS W93458Whiteline's superior formulation bushings with core characteristics ensuring superior elasticity, memory and outright durability induce positive steering precision and feedback.... Whiteline 1963 Chevrolet C30 Pickup Tie Rod Dust Boots 1978-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $29.79 |