J & J SPEED SHOP - GM, FORD & MOPAR PERFORMANCE PARTS and SERVICE

Tremec T56 for 3rd Gen Fbody
[1386-000-011]

$2,395.00

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Tremec T-56 Six Speed Transmission for 82-92 Fbody

Tremec's GM aftermarket replacement T-56 six speed is designed to replace the T-5 five speed in the 1982-1992 F-Body. This transmission can be used for many other applications with small modifications. Gear-ratio spread: 2.97:1, 2.07:1, 1.43:1, 1.00:1, 0.80:1, 0.62:1 forward, and 3.28:1 reverse

Tremec's GM aftermarket replacement T-56 assembly uses a 26-spline input shaft that mates with the existing GM clutch assembly. Also includes a special adapter plate that bolts the transmission to the stock T-5 bellhousing. The kit moves the T-56 transmission mount 1.9 inches rearward to mate with a Spohn Performance crossmember. This in turn requires correspondingly shortening the rear differential torque arm by 1.9 inches. An easy solution to this is to use the complete Spohn Performance transmission crossmember/adjustable torque arm kit! Retain the stock 27-spline slip-yoke, but shorten the driveshaft by 2 inches, or use a ready to install Spohn Performance Extreme-Duty Driveshaft!

Shifter location is the same as the T-5, so no floor pan or console modifications are necessary. The transmission is set up for a speedometer cable or a VSS connection, so no speedo calibration box is necessary!

Bellhousing And Clutch Linkage
The 4thGen F-Body car uses a "pull-type" clutch assembly, and the T-56's front face is different from traditional GM manual transmissions. Tremec's adapter plate provides the solution - it bolts the new T-56 to the earlier T-5 bellhousing and permits retention of the existing T-5 V8 clutch system without alteration.

Stock T-5 V8 bellhousings rotate the T-5 trans 18 degrees counterclockwise from "straight up". Tremec's adapter plate returns the T-56's orientation to "straight up". The 1984-1992 F-Body uses a bell housing set up for hydraulic linkage, GM PN 14075722 or Lakewood scattershield (available seperately).