[Slomotion34]

I am in the middle of a build and I have a few different parts to merge together... A TH400 and a 9" Ford rear (Moser center section). I haven't purchased the slip yoke and I was wondering if anyone knows what U-Joints I need to get. The original slip yoke I have (still on the driveshaft) is for a 700r4. The assumption here is that the driveshaft is out of something GM. I am going to try and have that driveshaft shortened... but I need some basic info on the u-joints. They are going to have to be able to handle about 575 foot pounds of torque and 3000 pounds worth of car. In case you haven't figured it out, I'm a certified rookie when it comes to u-joints. Thanks for the help!

[66GMC]

Good News!

Driveline mfr's make conversion u-joints, especially for applications such as this.

Take the measurements of the cup diameters and all of the other appropriate dimensions (inside lockup, outside lockup, etc) ...

Ah heck ... just go to Neapco's website, download the PDF catalog ... and then refer to the dimensional charts starting on pg 352.

OR

Download the dimensional Reference Guide only and refer to page 5.

The main catalog would also give you the ability to determine the required joint by application(s) ... as long as you were sure what all of the components were off of.

If you can't find someone that sells Neapco brand, they will either have the ability to cross-reference them, or at least look them up using the standard industry designations (ie "1330" / "S44" etc)

HTH,
Don

[Deuce]

Some GM U-Joints fit some Ford rear yokes ... as is ...

Try yours first ... if not ... any competent driveline shop should be able to fix you up. When you shorten the driveshaft ... they can install the correct end on the shaft to fit a U-Joint to the 9 inch rear end yoke ...

.

[speedydeedy]

I don't know about your area but here we go to NAPA auto parts store with part of drive line and they have conversion ujoints often in stock or by next day.

[boatbob2]

Speedway has joints,one side is chev,other side is ford.

[carsavvycook]

Deuce said it. A COMPETENT Drive-shaft shop will also be able to tell you whether the tube diameter and thickness is going to be sufficient for your hp to weight ratio.

[Slomotion34]

Thanks a lot!