Driveshaft Issues - Length and U-joint Type
Thread Starter
|
Senior User
Joined: Jan 2004
Posts: 104
Likes: 0
From: ATCO, NJ
Driveshaft Issues - Length and U-joint Type
So I slammed my 351w and matching C6 into my 78 F-150 Custom. Everything went in without a hitch. I did have to relocate the Transfer Case mount to the left frame rail but everything looks good. The transfer case is from a 79 Bronco and it looks like the u-joint on the tranny slip yoke is larger than the one that is on the driveshaft from the truck.
Question #1: Is there an easy way to mate this driveshaft and transfer case?
I suppose one option is replacing the output shaft with the one from the trucks original transfer case.
Question #2: What is the best way to measure for correct driveshaft length? I've heard many ides about this and thought I would give everyone a chance to chime in.
As always...thanks in advance for any help!
Shane
Question #1: Is there an easy way to mate this driveshaft and transfer case?
I suppose one option is replacing the output shaft with the one from the trucks original transfer case.
Question #2: What is the best way to measure for correct driveshaft length? I've heard many ides about this and thought I would give everyone a chance to chime in.
As always...thanks in advance for any help!
Shane
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
For the U-joint measure the distance across the yoke and the diameter of the caps on each side. You can buy a joint to fit from the parts store. If you have both U joints you can measure and compare.
For the driveshaft length check with your local driveline shop for the dimensions they need to make a driveshaft for you.
For the driveshaft length check with your local driveline shop for the dimensions they need to make a driveshaft for you.
Post Fiend
Joined: Mar 2005
Posts: 8,542
Likes: 5
From: Louisiana
The front driveshaft off of the Bronco should fit on the F-150 with out a problem, but the u-joints were a bit different between the 2 years(79 a hair bigger), not to much though, but still differnet so you might need to use the yoke and u joint off of the truck or just use the truck drive shaft. The rear driveshaft from the truck should still work fine, as long as you replaced your transfer case with the same one (205 for a 205) (if 205 for a 203 new yokes might be needed, and possibly different shaft.
I had a non working 203 and got a 205 off a boneyard truck for $50 and I think I need new yokes and mabye even new shaft. I really don't like all those ideas. To expensive for me.
Good luck
I had a non working 203 and got a 205 off a boneyard truck for $50 and I think I need new yokes and mabye even new shaft. I really don't like all those ideas. To expensive for me.
Good luck
Thread
Thread Starter
Forum
Replies
Last Post
piratius
1973 - 1979 F-100 & Larger F-Series Trucks
11
Sep 1, 2025 12:53 AM
lastchance
1973 - 1979 F-100 & Larger F-Series Trucks
2
Jul 16, 2004 08:45 PM
