[ricks032003]

hi; how far should the slip yoke go into the trans? my slip yoke is 5" and 1.5 is inserted into the trans. is this ok? thanks everyone.

[troy-curt]

I like to have half of the yoke in the tail housing, You need enough for suspension travel and bushing support.

Troy

[Chazmac]

Push the yoke into the trans until it bottoms, pull it out 1". Then measure for drivesahft length. 1 1/2" is not enough.

[cboy]

I'm no expert but this sounds short to me. I'm not sure where you are measuring from, but if you are going by the outside edge of the seal as your reference point, it's almost an inch or more from there to the beginning of the bushing (plus or minus depending on the make/model of trans). Conceivably, only about 1/2" to 1" of your yoke is therefore running in the bushing at normal stance - and even less when your rear end travels up and down. Worse case, your yoke might even be coming completely out of the bushing when you hit a large dip or bump. Hopefully a more informed tranny expert will chime in...but if it were my car, I'd want to verify the safety of this situation.

Dewey

[xntrik]

Originally Posted by Chazmac

Push the yoke into the trans until it bottoms, pull it out 1". Then measure for drivesahft length. 1 1/2" is not enough.

Correct. Somewhere between 3/4 and one inch out is sufficient/maximum. All you are trying to do is have enough clearance to prevent the yoke from pounding all the way in when the rear suspension bottoms out.

[Earily Ford]

Originally Posted by ricks032003

hi; how far should the slip yoke go into the trans? my slip yoke is 5" and 1.5 is inserted into the trans. is this ok? thanks everyone.

When the drive shaft is properly installed, the length of the yoke should just allow you to move it forward into the transmission to allow removal of the rear U-joint from the rear end. So 1.5 inches sounds quite a bit shallow, and could put some extreme amount of force on the rear transmission seal and the front U-joint.

[lust4speed]

The 7/8" or so clearance needed has to be measured by pushing the yolk into the tailshaft until it bottoms out. It will either bottom on the universal coupling, or if the yolk is long enough, it will bottom on the tailshaft bushing before the coupling hits the tailshaft. Either way, there has to be at least 7/8" clearance to insure you don't hammer the trans. It sounds like your driveshaft is too short from your description which is going to cause wear, vibration, and possible total driveshaft failure. As stated above, disconnect the driveshaft from the differential and bring it forward into the case as far as you can and then pull it out the 7/8" and then measure to see how much longer your driveshaft should be.

[Crosley]

Earily Ford.... welcome to Hot Rodders.

just an FYI:

Read the dates of the posts when you perform a search. The thread you answered is about 2 years dead and the original poster has not logged on in about 8 months.


One last item... it is a drive shaft YOKE , not an egg yolk.

[lust4speed]

Wow, didn't even notice the previous dates. I blame the "yolk" on the spell check Whoops!

[Crosley]

Originally Posted by lust4speed

Wow, didn't even notice the previous dates. I blame the "yolk" on the spell check Whoops!

lol.... been there , got a closet full of shirts.

I just point out the old thread dates , so folks do not expect the original poster to respond.... they may not.