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Thunderbird 390/428CID
Features and Benefits
The GenV WG50 ProGate50 External Wastegate is a Motorsport-proven
Fits Years: 67-73
FLH620767- 07-17 GM 1500 Truck
1978-1988 G-Body Crossmember 700R4 Chevrolet-Tahoe-1999 Thunderbird 390/428CIDFits Models: GM RWD G Body; Malibu, Monte Carlo, El Camino, Cutlass, Grand Prix, Regal, Century, LeMans, Caballero, Bonneville Fits Years: 78 88 Fits Transmissions: 700R4, 4L60, 4L60E, 4L65E, T5, TKO, TKX, 2WD AR5. If you are looking for improved performance check out our lighter weight, next generation of this transmission crossmember, RCGNG 700BLK. What is a lightweight crossmember? Find out here. We recommend a polyurethane transmission mount. The
