Classic Industries offers a wide selection of Performance Transmissions Parts for your 1958 Chevrolet Truck. Classic Industries offers 1958 Chevrolet Truck Under-Over Drive.
Gear Vendors Under/Overdrive; TH400 w/ 4" Tailhousing
Give your transmission up to twice the forward gear ratios with the UNDER/OVER DRIVE auxiliary transmission from Gear Vendors. This supplemental planetary gearbox adapts to the output shaft of your existing transmission to...
This product fits the following vehicle applications. Click to view individual years.
