I'm replacing the driveshafts on my 2WD 78 F100 with a NP435, switched over from a three speed at some point.

The PO had a piece of a old crossmember turned upside down bolted to the underside of the existing crossmember with the carrier bearing bolted to that, but the way he did it the driveshaft was at an angle and basically was binding the shaft in the bearing. I want to modify the piece he used or fab up something else to change the angle so the carrier support sits flat and the shaft runs through the bearing straight.

Does anyone have a pic of their stock driveshaft setup?

What are the angles of these driveshafts supposed to be?

 

Is this a supercab, and if so does it have any lift?

 

Regular cab, short box, no lift.

 

I'd just go a straight shaft on a reg cab, short bed. There is no need for the carrier bearing.

 

The driveshafts are already made, I assumed this was a stock configuration...no?

 

Every reg cab, short bed I have owned had just a standard driveshaft. Not to say yours is wrong, I've just never had one.

Just before I sold it, I had the driveshaft rebuilt in my 76 F250, reg cab, long bed. It utilized a carrier (center) bearing.

 

I wasn't even thinking of it when I had the new driveshafts made, oh we'll, I'll have to go with it now.

 

I thought only Supercabs had a carrier bearing. I don't see the need for it with reg cabs??

probably the best bet is to switch to a solid ds. But since you are already committed, I'd find a piece of 2x2 square tube or such and make a new spacer. It doesn't sound like anything stock is going to work. If the truck had a carrier stock, and has no lift then it should have a stock mounting location.