Didn't do too much today. Got the TC delivered and received my extra friction plate for my 5 pack reverse/high but I will have to wait until tomorrow to assemble that since I need to machine down the pressure plate.
I assembled the Fwd Clutch drum and my clearance came out to just about .026 which is within the .025-.050 limit.
The FWD clutch assembly parts
Completed FWD clutch ready for installation.
A word to the wise on this pack... there are two snap rings. One is selective and one non. The non goes on top of the Belleville spring and the selective on top of the upper pressure plate where we measure the clearance. To determine the correct snap ring use a caliper and measure the thickness. The nonselective will be slightly less than .070. Mine was at .063 and since the smallest selective in the series is .070 I knew it was correct. I also belleville that the selective snap ring has on end terminating with a ear and the other does not but that is just an observation on my setup and may not be indicative of others.
When I first measure the clearance it got .010 which is WAY out of limits so I tore the pack back down and discovered I had failed to completely seat the snap ring for the Belleville spring which caused it to ride high and threw my measurement off. The second time around I got .026. I have also found that I prefer to use my dial indicator to measure the clearance rather than a feeler gage just because I feel I get better accuracy.
I assembled the Fwd Clutch drum and my clearance came out to just about .026 which is within the .025-.050 limit.
The FWD clutch assembly parts
Completed FWD clutch ready for installation.
A word to the wise on this pack... there are two snap rings. One is selective and one non. The non goes on top of the Belleville spring and the selective on top of the upper pressure plate where we measure the clearance. To determine the correct snap ring use a caliper and measure the thickness. The nonselective will be slightly less than .070. Mine was at .063 and since the smallest selective in the series is .070 I knew it was correct. I also belleville that the selective snap ring has on end terminating with a ear and the other does not but that is just an observation on my setup and may not be indicative of others.
When I first measure the clearance it got .010 which is WAY out of limits so I tore the pack back down and discovered I had failed to completely seat the snap ring for the Belleville spring which caused it to ride high and threw my measurement off. The second time around I got .026. I have also found that I prefer to use my dial indicator to measure the clearance rather than a feeler gage just because I feel I get better accuracy.
'77 351w- Explorer EFI, 4R70W, 4-link, lockers, 4.56, 35" MT/Rs with a severe rock addiction.mokin:
Roads? Where we're going, we don't need roads.
Roads? Where we're going, we don't need roads.