727 Torqueflite Transmission Rebuild

hubcap · 05-01-2008, 07:22 PM

I am rebuilding a 1969 Torqueflite transmission. After reassembling the large front clutch pack, 4 steel and 4 friction plates plus the thick pressure plate, then the large snap ring, there seems to be too much clearance in the clutch pack after the snap ring is in place. Over a 1/16 inch,almost like it should have one more steel plate. Is this normal or am I doing something wrong. Jerry

GAK71 · 05-06-2008, 07:08 PM

Jerry, The '69 service manual calls for plate clearance between .024 to .125" four clutch discs 6 piston spring 383 or 440. The spec for the High Perf. 440 with 4 clutch discs and 10 springs is between .066 and .123" this is the measurement from the back of the pressure plate to the selective snap ring. If you are not within spec you can order a selective snap ring in different thicknesses to correct the gap. I'm building a '69 727 and ran into the same thing.

hubcap · 05-06-2008, 07:26 PM

Thanks for the info, I am within those specs. Thanks very much.

05-01-2008, 07:22 PM	#1 (permalink)
hubcap Junior Member Join Date: May 2008 Posts: 3	727 Torqueflite Transmission Rebuild I am rebuilding a 1969 Torqueflite transmission. After reassembling the large front clutch pack, 4 steel and 4 friction plates plus the thick pressure plate, then the large snap ring, there seems to be too much clearance in the clutch pack after the snap ring is in place. Over a 1/16 inch,almost like it should have one more steel plate. Is this normal or am I doing something wrong. Jerry

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05-06-2008, 07:08 PM	#2 (permalink)
GAK71 Junior Member Join Date: May 2008 Posts: 1	Jerry, The '69 service manual calls for plate clearance between .024 to .125" four clutch discs 6 piston spring 383 or 440. The spec for the High Perf. 440 with 4 clutch discs and 10 springs is between .066 and .123" this is the measurement from the back of the pressure plate to the selective snap ring. If you are not within spec you can order a selective snap ring in different thicknesses to correct the gap. I'm building a '69 727 and ran into the same thing.

05-06-2008, 07:26 PM	#3 (permalink)
hubcap Junior Member Join Date: May 2008 Posts: 3	Thanks for the info, I am within those specs. Thanks very much.