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DRIVELINE TRANSMISSIONS TECH TIPS CLUTCH/TRANSMISSION HOW TO CHECK BELLHOUSING ALIGNMENT INSTALLATION TIPS The first step is to check bellhousing face runout. You are checking for parallelism of the 1986 and newer V8 Mustang back of the bellhousing to the back of the block. Install the dial indicator (as shown in Fig.1). The flywheel-to-crankshaft bolts must be Rotate the crankshaft and mark down the reading. Be sure to push the crankshaft against hand-torqued to 75-85 lb-ft (302/351W) the thrust bearing for an accurate reading. Maximum runout is .010. The next step is checking and 54-64 lb-ft (4.6L). bellhousing bore runout. You are checking to see if the bellhousing bore center line is aligned The 10.5" pressure plate bolts must be torqued with crankshaft center line. Reposition the dial indicator in the bellhousing bore (as shown in to 12-24 lb-ft and 11" pressure plate bolts Fig. 2). Rotate the crankshaft and mark down the readings. Maximum out of concentricity is .015. to 33 lb-ft + 1/4 turn. If the bore runout is out of spec, install appropriate offset dowels. Be sure to use the alignment dowels Offset alignment dowels can be purchased from Lakewood®. in the flywheels. .007 PN 15950 Pressure plate bolts and alignment dowels .014 PN 15960 for the 10.5" clutch can be purchased using .021 PN 15970 PN M-6397-A302. Pressure Plate Bolts N808969-S100 and Alignment Dowels PN D1FZ-6397-B are for the 11" pressure plate. Fig. 1 Fig. 2 Evenly tighten bolts in a circular direction one turn at a time. Bellhousing alignment is crucial for proper clutch and transmission function. Due to production tolerances of engine blocks and bellhousings, it is possible for the transmission center line and crankshaft center line to be misaligned. Misalignment can cause transmission gear wear, transmission jumping out of gear, driveline vibration, clutch pedal vibration, pilot bearing noise, release bearing noise or excessive clutch spin time. It may also damage the pilot bearing, transmission mainshaft bearing and clutch hub. It will also cause harsh shifting. Level tip rides on bore surface. This surface must be clean Before installing the bellhousing, check Face of housing and free of nicks, burrs the block mounting surface and bellhousing (must be clean and free of nicks, or foreign material. burrs or foreign material). surfaces for nicks, dents, paint debris, etc. These are some things that could affect the accuracy of your measurements. TREMEC® 6-SPEED TRANSMISSIONS New magnum T-56 technology from Tremec® provides more torque capacity and smoother shifting than 6-speeds of the past. Requires aftermarket bellhousing available through Quicktime® Bellhousings. For small block Ford 302/351 use Quicktime® Part No. 8031. For modular 4.6L/5.0L/5.4L use Quicktime® Part No. 8080. M-7003-M6266 2.66 1st Gear • 700 lb-ft torque capacity • Gear ratios: 1st 2.97; 2nd 2.10; 3rd 1.46; 4th 1.00; 5th 0.74; 6th 0.50 • Input shaft is 26 spline; output shaft is 31 spline • TREMEC® recommends Synchromesh® fluid • Weight 135 lbs M-7003-M6295 2.95 1st Gear M-7003-M6295 shown • 700 lb-ft torque capacity • Gear ratios: 1st 2.95; 2nd 1.78; 3rd 1.30; 4th 1.00; 5th 0.80; 6th 0.63 • Input shaft is 26 spline; output shaft is 31 spline • TREMEC® recommends Synchromesh® fluid • Weight 135 lbs For important information about the proper usage of performance parts, please see page 14. See pages 286-292 for important safety, emissions and warranty information. www.fordracingparts.com 167


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