Ford T56 Transmission
Tremec's Ford aftermarket replacement T56 transmission assembly comes with a newT56 compatible bellhousing that replaces the existing '83-and-later T5 bellhousing while retaining the original clutch assembly, cable clutch linkage, clutch fork, release bearing, and pivot ball stud. Installation in older mechanical linkage clutch applications requires conversion to cable clutch actuation. Advance Engineering West offers a universal cable clutch linkage conversion kit for older Mustangs.
Borg-Warner developed the trans installation procedure using a '91 Mustang coupe.
It requires
| The "Ford" T56 (Left) uses a 10 spline Ford-style input shaft that permits retention of the existing Ford clutch assembly. Its mount pad location (indicated by the straightedge) is farther back than the T5 (right). However, the shifter is in the same location as a T5, eliminating the need for floorpan modifications. The "stick" attaches using two mounting bolts, the same as a T5 shifter (or most other Hurst shifters). |
Bellhousing and Clutch Linkage
Tremec ships the trans and bellhousing as an assembly. Detach the bellhousing from the trans and bolt it in place of the original T5 bell housing. Unlike the conventional bellhousings and transmissions that we're used to, the fork, pivot stud, and release bearing attach to the front of the trans, not to the bellhousing itself. After transferring these items from the old bellhousing to the new trans, bolt the trans to the new bellhousing.
Crossmember Modifications
The T56 mount pad is located 5 inches farther to the rear than the T5's pad, so the stock crossmember
| The clutch-cable and fork junction is in a different location than the stock T5 unit. To clear it, trim the production engine-to-transmission rear cover plate in the location shown. |
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| To install the fork, release bearing, and pivot stud, attach the bearing and pivot stud to the fork, slide the fork and bearing over the input shaft, and only then begin threading the pivot stud into the boss on the transmission case. | Reuse the T5 clutch release lever dust shield. Its retaining tab (arrow) must be bent outward to conform to the thicker T56 clutch arm opening lip. |
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| The right-and left-hand brackets are not "mirror images" of each other because the unibody contours differ on each side. Fabricate them from mild steel as shown. Welding and radius-bending are required. |
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| Relocate the AIR crossover tube from points (A) to (B) for trans case clearance. Cut off and discard the mounting hardware previously used to attach the exhaust pipes to the old T5 trans mount location. Heat and bend the air supply tube line frome the engine as required to mate with the relocated crossover tube. | Both the speedo cable receptacle (A) and backup light switch (B) are relocated to the passenger side. Compared to the T5 location, the speedo cable connection is also moved rearward 3.5 inches, requiring a new speedo cable. The backup light switch wire can merely be lengthened as needed. Tape off the original T5 neutral switch wire; it is no longer required. Also shown is the new center slot added to the crossmember for the GM mount's attaching stud. | This is the complete Ford T56 installation, showing the bellhousing, relocated crossmember and modified exhaust |
Critical Dimensions
Listed below are the critical dimensions of the T56 in comparison to T5 and traditional
four-speeds. Metric dimensions are converted to inches and rounded off to the nearest
0.1 inch.
| Trans Model |
A |
B |
C |
D |
E |
F |
| Ford Toploader |
6 3/8 |
13 1/4 |
25 3/8 |
n/a |
n/a |
5.5 |
| Ford T5 (small block V8) |
6.9 |
14.5 |
24.7 |
15.4 |
19.5 |
5.5 |
| Ford T56 After- market |
5.3 |
21.1 |
21.7 |
20.5 |
21.1 |
3.75 |
In addition to the parts and accessories listed here, we also provide an impressive list of automotive after market products for car, pickup truck, SUV and 4wd repair parts and accessories that includes rear end covers, ring and pinion gears, OE clutches and heavy duty performance clutches, diesel gauge kits, exhaust brakes, re manufactured manual and automatic transmissions and both manual and automatic overhaul kits. Other products we offer for the RV recreational vehicle market include REMCO drivelinedisconnects, tow bar and baseplates and auxiliary overdrive units to improve vehicle performance and save fuel. We have a complete 4 wheeling drivetrain product line including complete differential assemblies, limited slip and other solid locking positractions. We offer transmission conversion kits including the NV4500 and NV5600 as well as replacement kits for light duty GM and Jeep transmissions. You may be interested in visiting our Ford and Powerstroke Diesel page, Dodge Ram and other Jeep pages for detailed information.
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