driveshaft?

[Dunnburger]

Ok went from 240 with 3 on the tree to a 390 with a cruise-o-matic behind it. I need the driveshaft shortened quite a bit. I was thinking of just having one made. The one on the truck is a two piece. Can I have a one piece made?? are there restrictions on how long a one piece drive shaft can/should be?? What is the advantage/disadvantage for one piece VS. two piece shaft???

[hotrod ford]

im in the same situation about having my driveshaft shortened. but my question is do you have a lwb or swb? if it is a lwb you will need a 2 peice drive shaft. this is to allow flex. if it was a 1 peice on a lwb there is a high possibility that it could break. now, if it is a swb all you nees is a 1 peice. i hope that this helps.

[Dunnburger]

Yeah its a lwb, but was hoping to get way from the two piece because I don't wan't to go through the hassel of getting a new carrier bearing anf putting it in.

[fordman]

the carrier bearing isnt that big of a deal. i would just shorten the front shaft and not wory about it. but you might be able to find a single shaft to fit it. check on some of the newer trucks and take some measurements to see if it would work or not.

[Jason67F-250]

Hello I just did some thing like this I went from a cruise o matic to a c6 from a 76 i used the driveshaft from the 76 and had it shortened they had to put a different ujoint on the end so I could mate it up to the 67 rear end. I don't think you need a two piece. Oh Yeah both trucks were LWB. hope this helps any questions I'll try and answer.

[Dunnburger]

Thanks alot guys, really appreciate your input!!!

[craftsman]

I measured my dentside longbed and my bumpside longbed and from center of the wheels the dentside is a couple of inches longer and it came from factory with one piece driveshaft, though it is fairly large in diameter.
My bump has two piece driveshaft, but it does have a shorter trans.

[Jason67F-250]

yeah my bump side had a samller tranny and the drive shaft from the 76 had to be cut down. when i installed the c6