Category Archives: 4-Speed

The following three  4 Speed  transmissions are only for the D-300 t.f case

This transmission is completely rebuilt with all upgrades to give longevity and wear. New bearings, gaskets , seals, shafts, and small parts are replaced. This transmission is only for the D-300 t/f case  Core charge is $200

This transmission is completely rebuilt with upgrades to give longevity. All bearings, seals, synchros, shafts, and small parts are replaced. The shift tower is upgraded and is included with the transmission as well as the stick.  This transmission was used  … Continue reading →

The two following transmissions are overdrive transmissions

This transmission is called an RTS.  The RTS transmission is an alternative replacement as a heavy duty transmission with overdrive for D-18 and D-20 transfer cases. It can be used in conjunction with a  (WARN) style OD as well. When … Continue reading →

This transmission is completely rebuilt with upgrades to help with longevity and strength. This transmission was used from 1982 thru 1986 with a D-300 t/f case. This is and overdrive transmission.   There is a $500 core charge 1st Gear 4.03 … Continue reading →

These transmissions are heavy duty in design. They are very strong and come complete with shift towers, shift handles and adapters to D-18/D-20 transfer cases There is no core charge on these transmissions

This transmission has the 15/16″ imput shaft and is a direct replacement for the T-90 short shaft . It will use the same clutch, pressure plate, throwout bearing, throwout arm, clutch linkage as the T-90. The transmission comes with a … Continue reading →

This transmission is completely rebuilt and comes with the 10 spline  1 1/8″ imput shaft and the adapter for a D-18 small hole or a D-18 or a D-20 large hole t/f case 1st Gear 6.40 (6.32) to 1 2nd … Continue reading →

This transmission is completely rebuilt and comes with the 10 spline  1 1/8″ imput shaft and the adapter for a D-18 small hole or a D-18 or a D-20 large hole t/f case 1st Gear 6.40 (6.32) to 1 2nd … Continue reading →

This transmission is completely rebuilt and comes with the 10 spline  1 1/8″ imput shaft and the adapter for a D-18 small hole or a D-18 or a D-20 large hole t/f case 1st Gear 6.40 (6.32) to 1 2nd … Continue reading →

This rebuilt transmission comes complete with an Advance Adapter’s adapter to fit a D-18 or a D-20 t/f case. If you are fitting this transmission to a small hole case you will need a special bearing adapter and a 307 … Continue reading →

This rebuilt transmission comes complete with an Advance Adapter’s adapter to fit a D-18 or a D-20 t/f case. This adapter is 7/8″ thick and has three clocking positions for the t/f case to assist in driveline angle. If you are … Continue reading →

This rebuilt transmission comes complete with an Advance Adapter’s adapter to fit a D-18 or a D-20 t/f case. If you are fitting this transmission to a small hole case you will need a special bearing adapter and a 307 … Continue reading →