Moparts Tech Archive
Manual & Clutches
Clutch fork questionsBolig
From: Lakeland Florida, USA
Registered: Mar 2001
posted 01-17-2003 11:15 PM
O.K. guys, Got a question for ya. I need to know the actual legnth of an A-Body clutch fork? I'm thinking mine is too long.
The overall length of an a-body clutch fork (68-up) is approximately 12 1/2"
That sounds about right.
You're a pretty smart cookie there 4speeds. how did you know I thought mine was too long? (never thought I would be able to say that.)I am thinking that because if I get the throwout bearing just off of the pressure plate, it doesn't release the clutch enough to shift properly. I was thinking a shorter one would increase the travel distance at the bearing.
Yeah, the small-block fork is over a foot long; the BB one is about 10" & won't fit. I didn't know there were two different ones until I tried the fork I had & the fingers wouldn't reach the bearing. I swapped it for the longer fork. Now, answer me this: how long is the Z-bar, and more importantly, what does the stud assembly on the BH side look like? I can't get that assembly put together correctly on my A-body. Thanks.
yep about 12 1/2" is right.
BB is 10 1/2",if that's what you have I'll trade ya' for a 12 1/2" SB one,i'm only a short distance away.
Have you tried adjusting the clutch linkage?
BTW: you want me to get get you a clearer version of your sig pic?
Check the length of the arms on the Z-bar.
The pivot in the bell housing could be the wrong one too. I just carried all of my parts books over to the shop and looked up the numbers for the 68-70 B and E but did not look at the A body stuff. I think they are diff.
Oh, and yes. In theory a shorter fork would give you more release, but there would be a problem with lining it up with the Z-bar.
Are you running a diaphragm clutch with the spring still attached to the pedal? That will prohibit the fork from returning properly.
The 6-cylinder Z-bar must be shortened by about 1" on the engine side to work with a V-8. Otherwise, the geometry of the bar is the same as the V-8 version. I always end up repositioning the ball stud bracket for use on a V-8.