Visit The Dirt Forum for More Information

Author Topic:   Yoke Length
dluna
Dirt Freak

Total posts: 334
posted June 21, 2004 01:18 PM  
We are starting to get more and more movement in our 2-link each week as we make positive adjustments. Next year, we will be buying a 4bar(lr) / Zbar (rr). I know we will get more movement in the rear with this type of suspension.

We are running a falcon tranny. The yoke length from center of u-joint to end is 5". The total shaft length is just over 3 1/2". At ride height, we have right around 1 1/2" of the shaft out of the tranny, leaving 2" in the tranny.

My question is, would it be smart to go ahead and purchase a new yoke (longer) and what length?

At first, I was thinking there was only 3" of shaft before you bottom out the yoke. A closer glance, I was using this 3 1/2" shaft yoke and the inside of the yoke was hitting on the back side of the transmission shaft. I suppose I could use a tape measure to see where the tranny bottoms out.

Does anyone know the length?

I figure if I am going to be purchasing a new yoke next year for a new car, I might as well play it safe this year and get a longer yoke...I just don't want to get too long.

Speedways sells:
5 7/8
6
6 3/4
8

I'd say 6 or 6 3/4 would be a good choice as long as there is plenty room.

thanks.

tilley88
Dirt Forum Champ
Total posts: 879
posted June 21, 2004 10:15 PM  
I bought the 8" yoke with the 31.5" driveshaft. DW8, 110" wheelbase, Falcon tranny. So far I'm gettin 2" of travel with room to spare.

dluna
Dirt Freak

Total posts: 334
posted June 22, 2004 07:58 AM  
I called Charlie at Winters (makes Falcon) and got the info. It sounds like there is 12 to 15 inches before the slip yoke will bottom out in the tranny. VERY nice guy to talk to.

OKC9
Dirt Full Roller

Total posts: 52
posted June 22, 2004 06:11 PM  
We switched from a powerglide to falcon this year on our 4L DW9 110". The old drive shaft/yoke combination destroyed the bearings and seal in the falcon tail section. We are at about 31" with a Smiley's 8" yoke now without any problems. You should have about 3 fingers clearance from the tail section housing to the transition on the slip yoke.

Back to the Archives