Drive shaft

[E$rnie Pintor III]

So my build is a 50 f1. I got the rear end from a 93 f-150. Motor and trans came out a 66 dodge motor home. The way the trans back end and the Tay the rear end is ; they both have a plate on the ujoint . So I have a two piece drive shaft with a center barring and a slip yolk in the middle. So I'm getting ready to make a center crossmember to hold the barring. I just noticed the rear end is off centered. Is that gonna be a problem? Should the barring be centered? I know the ujoints give for the angles of up and down but is it alright for left to right angles? Again should I center the barring with frame rails or to where the trans and rear end line up?

 

[Old Iron]

no need to center the pinion. A lot of vehicles have this offset.

 

[Sam_Fear]

He means centering the carrier bearing. I think it's centered between the rails.

 

[gold03]

Your carrier bearing can be centred. Mine has the same set up. My 51 Dodge 4X4 actually ran an offset rear differential to match the front differential offset. I ran the same U-joints for ten years.

 

[sneakysnake]

They say if you have your driveline to straight it wont let the needle bearings rotate properly and will put grooves the ujoint cups.

 

[05snopro440]

They say if you have your driveline to straight it wont let the needle bearings rotate properly and will put grooves the ujoint cups.

Yep, some angle is better than none.

 

[Willowbilly3]

Another thing most people don't consider when installing U-joints. Always put the grease fitting so it's in compression under acceleration. It is much stronger than if it's installed with the grease fitting (hole) in extension.

 

[30sx]

when i did my driveshaft had heard defferent stories as to how it should be set up, so when i,m not sure i go to an original vehicle from the factory, my 81 chevy shortbox has never been altered, the driveshaft is 3% down at the tranny output and 0% at the rear end but the pinion is off set to one side which probably gives the u joint,s their movement, this setup works great