What's new
CK5
Register an account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members.

Anyone broken a conversion u-joint?

mikey_d05

mikey_d05

1 ton status
GMOTM Winner
Joined
Nov 23, 2004
Posts
10,453
Reaction score
0
Location
Minnesota
Making a list of things I forgot to pack in my trail truck for this weekend's trip and realized that I don't have a spare S44-1350 joint...the rearmost joint in my driveline.

Anyone broken one? What circumstances? I'm already short of cash and the diesel bill from this weekend sure isn't gonna help....should I shut up and pick one up or is it reasonable to go without one?
 
I haven't broken my conversion joint....yet. I am sure one of these trips I will. Does Gilbert have a good parts store like Napa? If they do, then you might be able to risk it. But you'll lose valuable wheelin' time when chasing down parts. ;)
 
I've been running the Napa version for years on my truck and never broken one, worn some out from poor angles, but never broken one. The K5 has been a trail-only rig since the 14FF has been installed but made 150-250 mile roundtrip on pavement at least once per month for several years.

Originally it was a welded 14FF with a l/s equipped 3/4 ton front on 35's, and then a locked D60 front with 38's. I've broken two 10-bolt axleshaft u-joints (Spicers) and two D60 30-spline front stubs and a necked down inner shaft all at different times, but never the 447 conversion u-joint.
 
Sand drag track. 33" BFG AT. Hit gas at line, boom.
.
.
.
.
.
ZZ502 Crate motor... :D

Had new driveshaft built with 1350's. Problem solved.
 
interesting, i ran a conversion joint from Napa when i got the new diff, wore out that u-joint in about 3 months,,,went the cheapo way, (autozone) and has been on there ever since, about 2.5 years now. :D
 
PsychoticDeadGuy said:
what are all the size joints you have? i have an s44-1350 and a 1350 in the rear. i just bring a spare conv. because i think its the weekest link...
Click to expand...


honestly, i do not know anymore, the stock on the front of the rear shaft, whatever that is for a 1/2 ton Burb, and the conversion on the rear of the rear d.s. from a 1/2 ton driveshaft, to a 3/4 ton, diff...

it's been so long since i have had to deal with it, i forgot what they were,,, :doah:
 
Yep I have taken out a couple. I usualy eat up the bearings on the small side...the large side never has a problem. The joint doesn't see much angle since I run a CV at the tcase. Its just hard on those little joints running a welded 14bolt with 44" tsls.
 
I have broken everything in my rear driveline except that ujoint. I blew apart my NP208, grenaged the S44 ujoint at the case, ripped slipyoke ears & driveshaft ears, and dented the driveshaft. I did all this carnage all at the same time too. :D The conversion ujoint is the only thing that survived.

Harley
 
The conversion ujoint is the only thing that survived.
Click to expand...
Exactly!

I have broken countless D44 parts.
I have broken some D60 parts.
I have broken NP241 parts.
I have creased and "ground on" (abused) the driveshaft.
I just busted the slip yoke (again, 2nd time), the S44 joint, AND the driveshaft slip yoke all at once- but the damaged OEM driveshaft and the conversion joint still survived.
I run a crate 350, 700R4, 241, 35sp D60 w/detroit, and a welded 14BFF all on 40"TSLs.

4r.jpg

5r.jpg
 
Well, I ran it this weekend and it didn't break, so I guess they're alright :D
 
k5 krawler 50 said:
hijack...
Got any wheeling pics..?

Hijack off..
Click to expand...

Hopefully I will in a day or two, I don't have any good shots of myself since I was driving but one of the guys I went with is supposed to send me some soon.
 
I run the u-joint in the other direction. I forgot who I bought a CV drive shaft from on CK5, but it was made with 1350's- except for one little problem, I only ran a 10B rear- Figured, hey, what the heck right? at least I'd be ready for 1 ton later.
 
You must log in or register to reply here.

Latest Posts

Top Bottom