65 Gt Vert T10 Drive Shaft: How Much Rotational Play Is Too Much Rotational Play?

radojko

New Member
Apr 2, 2015
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Greetings all!

Background details:
My 65 GT vert has the T-10 manual transmission. I've started hearing a "clunk" sound when I engage the clutch after shifting.

My diagnosis:

I'm thinking that maybe it's a u-joint/slip yoke issue. I did the "grab the u-joint and push up/down and left/right" test - it's tight and no obvious signs of wear. But if I grab the drive shaft and rotate forward/backward, there is some amount of "play" before contact is made and the rear wheels start to turn.

My question:

How much "play" like this is too much? Can this be the source of my clunk? If so, what's the fix? If not, what else should I look for?

Muchas gracias,
-Bob-
 
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