View our Specials! Coupon Code: SaveIn2026
Looking for 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 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 - LOW 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 |
 OUT OF STOCK 3.4103RWill 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 GM Body Mounts - Red 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $121.66 |
 IN STOCK - LOW 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 |
 OUT OF STOCK 3.1130REnergy 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 Red Motor and Transmission Mounts; Zinc Finish 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $116.23 |
 OUT OF 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 |
 OUT OF 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 |
 OUT OF STOCK 3.6117RMade 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 Red Radiator Isolator Pad Set - 3 Row 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $40.91 |
 OUT OF STOCK 3.6118RMade 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 Red Radiator Isolator Pad Set - 4 Row 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $40.91 |
 OUT OF STOCK 3.2126GEnergy 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 Chevy P/U Rear Frame Shackle - Black 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $43.85 |
 OUT OF STOCK 3.2126REnergy 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 Chevy P/U Rear Frame Shackle - Red 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $43.85 |
 SHIPS FROM MANUFACTURER K6607By constantly introducing design enhancements that extend product life and simplify installation and replacement, MOOG has earned its reputation as the chassis industry's Problem Solver.... MOOG 73-74 Chevrolet C10 Pickup Front Lower Bumper Bushing 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $39.20 |
 OUT OF STOCK 19-1714-BLProthane Universal Tie Rod End Boots .650X1.625in - Black 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $28.74 |
 IN STOCK - LOW 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 |
 OUT OF STOCK 7-135-BLProthane 75-79 GM 1/2 / 3/4 / 1T 2/4wd Body Mount - Black 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $131.31 |
 IN STOCK 7-104Prothane 73-80 GM Body Mount 12 Bushing Kit - Red 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $117.50 |
 OUT OF STOCK 7-135Prothane 75-79 GM 1/2 / 3/4 / 1T 2/4wd Body Mount - Red 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $131.31 |
 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 |
 OUT OF STOCK 7-1003-BLProthane 73-87 GM Rear Spring & Shackle Bushings (w/ 1.5in Bushings) - Black 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $72.90 |
 OUT OF STOCK 7-1008-BLProthane 73-87 GM Rear Spring & Shackle Bushings (w/ 1.75in Bushings) - Black 1975-1978 GMC C25 Base / High Sierra / Sierra Classic / Sierra Grande $78.91 |