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Author Topic:   u joint question??
Fomocosho
Member
posted August 09, 2003 07:51 PM
I have a 82 regal and I put a 9 inch in it with a short wide yoke. What U joint do I need?? I need it in a hurry. Im hoping to use the stock driveshaft.

Thanks

SLEEPY GOMEZ
Member
posted August 09, 2003 09:35 PM
I ran into the same thing. As I remember there are 3 different u joint yokes on the Fords. A good auto parts man can get you the right one. SLEEPY


66jj
Member
posted August 09, 2003 09:39 PM
SPICER #372 IF MY MEMORY IS STILL INTACT.

GOES FROM 369 GM TO WIDE FORD.

IN THE BACK OF THE UJT BOOKS IS A CROSS REF, AND COMMON CONVERSION JT CHART, MOST PARTS PEOPLE GOOD OR NOT DONT KNOW HOW TO READ THE PARTS BOOKS ANYMORE.

JEFF

wizzard
Member
posted August 09, 2003 09:52 PM
unless you have the engine set back pretty far you need the long yoke to use the stock driveshaft, with the wide ford yokes you can use the stock GM u-joints. I've got the long wide yoke with a completely stock driveshaft in my metric with the engine set back about a 1/2" off the firewall.

[This message has been edited by MEANGENE83 (edited August 09, 2003).]

[This message has been edited by MEANGENE83 (edited August 09, 2003).]

Fomocosho
Member
posted August 10, 2003 12:06 AM
mean gene what tranny are you using?


Fomocosho
Member
posted August 10, 2003 12:23 AM
how far should the front yoke slide into the tranny when the car is at ride height?


racer17j
Member
posted August 10, 2003 02:11 AM
i always try to have about 1-1 1/2 in sticking out from the tranny


Fomocosho
Member
posted August 10, 2003 01:38 PM
Well I was going to put the motor in today but we started chopping hay. Thanks to everyone. Ill let you know how it turns out.


nate 11
Member
posted August 10, 2003 02:34 PM
i beleave i would rather put the motor in instead of cuttin hay. lol......too hot here in texas for that ......


MEANGENE83
Member
posted August 10, 2003 03:36 PM
I use a saginaw 3 speed, same length as a th350(short tailhousing). At ride height I got about 1" out. I tried it with the short yoke first with it about 1/2 way in and it vibrated like **** and cracked my tranny, so ya wanna be in far enough.

[This message has been edited by MEANGENE83 (edited August 10, 2003).]

wermm
Member
posted August 10, 2003 09:06 PM
I run a stock driveshaft in my car with a glide and have about 1 1/2" sticking out of the tailshaft with the motor in stock location


SLEEPY GOMEZ
Member
posted August 10, 2003 10:04 PM
Best way I've found for locaring the driveshaft yoke in the trans: Remove the rear coil springs, leave the shocks in place. Jack the rear all the way up and then let it down. Note how much movement in an out you have. My metric was about 1/4" with stock linkage. Add 1/2" for safety. Thus in my case, I bottomed the yoke in the trans then pulled ity out 3/4'. This leaves the maximum amount of spline. Max spline means less loading. This is less friction so the yoke has less bind as the suspension moves. SLEEPY


Fomocosho
Member
posted August 10, 2003 11:51 PM
Thanks to everyone I just hope I dont have to get the driveshaft cut down. I hope to have it ready for this coming Friday.


powerglides
Member
posted August 11, 2003 06:36 AM
only ever ran a stock driveshaft, balanced of course.

Is 7800 rpm considered high, thats as far as Ive gone, on pavement with 10 inch slicks hooked up.



Fomocosho
Member
posted August 15, 2003 12:13 AM
Finally got the motor and tranny in. The driveshaft slides into the tranny 1 1/2 inch. Is this enough? Im guessing not. So I will have to change to the long yoke. What vehicle came with the wide long one? What is required to do this? Do I just take the nut off and pull the yoke off and put the new one on? I never took one apart so I dont know what to do. Or is there a stock driveshaft an inch longer than the metric one?

Thanks

[This message has been edited by Fomocosho (edited August 15, 2003).]

Raz_900
Member
posted August 15, 2003 08:34 AM
I had a brand new driveshaft made with heavier tubing, new yokes, new joints and balanced for $105. A long yoke was $48 and would only require putting a new front U-joint in. But, for the piece of mind of having a stronger new one, I coughed up the $$$ to have the new one made to the right length.


MEANGENE83
Member
posted August 15, 2003 12:40 PM
I think (not 100% sure) the long wide yoke i got was off a '79 T-bird, just use an impact to change 'em and let it hammer like you would to change a tire. Problem is that I think there is 2" difference in length between the short and long yoke. (Please correct me if I'm wrong) So, you might have to have a driveshaft made. I'd be pretty tempted to try it with 1 1/2 hangin out first, if it vibrates pull off.


Fomocosho
Member
posted August 15, 2003 11:56 PM
I tried to find a driveshaft that was an inch longer and I measured the one off of my old Bomber car a 77 monte and it was exactly an inch longer. The u joints were the same so it bolted right in. Now I have about 7/8 of an inch hangin out so it should work perfectly.
Thanks for all the help. I should be ready to race Saturday.


dtd_93
Member
posted August 16, 2003 12:40 AM
is it better run in high gear with a low gear in the diff or run say second on a three speed and a not so low gear in the diff??


wizzard
Member
posted August 16, 2003 12:48 AM
running anything but high gear, robs horsepower, and is hard on trans. do not put an unbalanced driveshaft with a powerglide, you will explode the case!!!!!!!!!


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