1958 GMC 300 Transmission Mounts, Cases, Housings
- Hooker®BlackHeart™ Transmission MountGMC 300 1958, BlackHeart™ Transmission Mount by Hooker®. Material: Polyurethane. Designed utilizing the latest technology, this product features premium quality and will perform better than advertised. Perfect for your vehicle and...Durable polyurethane to handle the stress of high horsepowerSame durometer as other BlackHeart and Hooker poly mounts$37.95