My 75 Highboy, needs a front driveshaft. It has a big ding and slight bend so I'm heading to the junkyards to find a replacement. My question is do any models besides the 73-77.5 highboy use the same driveshaft? FWIW, low pinion 44, divorced 205, manual trans behind an FE.

 

i think they are the same length so you can interchange front and rear driveshafts on a hiboy

 

Huh, never would have guessed it. Aside from a highboy, anywhere else to get this driveshaft?

 

where do you live DM,I might have one for you? ill ck

 

Denver-ish.

 

Pretty sure the front is longer than the rear. Think the only that works right is a highboy driveshaft.

 

the rear is def shorter then the front, your gona have to get a HB drive shaft, all married ones will be too short

 

also im sure you have a place that could make you one, they usually arnt insanely priced either, i had a new rear one made for around 250

 

I've actually got a really good driveshaft shop nearby, but I'm not looking to spend a lot of money on it. Its a 500$ truck, that isn't even on the road yet. 30-40$ at the u-pull it yard I can justify, 200-250$ for repair or replacement I can't.

 

duh, ur right. not sure what i was thinking

 

what are you gona be doing with the truck?

 

Just trying to get it into service right now. No more than mild off roading, mosly just pickup truck duty. Hauling crap around and so forth.

 

your prolly gona have a hard time finding one in a yard, might have to get a longer one and just have it shortened, should be under 100 bucks to do that

 

I should have my old one around I swaped a 60 send me a pm with address and Ill go threw the pile dave

 

A parts highboy showed up on craigslist so I was on that driveshaft like stink on a monkey. I drive an hour 1 way get there and the frame is on blocks, somebody has already bought the axles front and rear. The driveshaft is already off and the shaft looks close but not quite. The donor was a 76 with a 351M and C6 with a divorced 205. The shaft's tube looked about the right legnth but it had a CV joint on the rear end instead of a U joint. I said what the hell and paid the guy 40$ anyway.

I get it home and side by side they are not interchangeable. The CV wont fit into the yoke on my 205, the CV is too narrow. The front slip yoke is considerably meatier and longer than my original. The shaft tube is noticably larger around and about 3.5" to 4" longer too. I noticed that the slip yoke U-joint is symetric, where my old slip yoke has a non-symetric U-joint.

The good news is that the new yoke has the same width as my old one so I would be able to use the stock non-symetric U-joint. My plan is to take my new shaft to my driveshaft shop and have them shorten it and install a rear yoke deleting the CV. I didn't want to spend the money at the D/S shop but now that I have some beefier parts its a little easier to justify spending the money for the upgrade.