ujoint conversion for a 6 lug 14 bolt SF

[bajaviking]

I am putting a 6 lug 14 bolt SF in my Blazer, what ujoints should I use? I currently have a 12 bolt in it.

Thanks!

 

[sweetk30]

14sf should be a 1350 joint. cant help ya on the part# tho.

 

[shane74]

You need the standard 1/2 -3/4 ton conversion joint. Do a search on this site and you should be able to find it. I don't know it off hand. Otherwise I'd tell you.

 

[bajaviking]

Is is the same ujoint that you use for 14 bolt FF? If it is I think I have the partnumbers written down somewhere.

 

[HarryH3]

Hmm, when I swapped a 14 bolt SF into our '94 Suburban, the driveline shop guys told me that I could just swap the yoke from my old 10-bolt to the new 14. That way I didn't need a crossover joint. It worked. But I'm not sure if the 12 bolt takes the same yoke or not.

 

[Janitorjim8]

can i have more info on how you converted a 14 bolt to 6 lug?

 

[HarryH3]

I didn't convert it. GM made a 6 lug version of the 14 bolt Single Floating axle. It was used in some extra cab 1/2-ton trucks and light-duty 3/4-tons. While not quite as beefy as a 14 bolt Full Floater, it is WAY beefier than a 10-bolt! I just happened across one while trolling the aisles at the local pick-n-pull yard that matched the gear ratio of our '94 Sub.

 

[bigjbear]

Harry, You're saying the S44 yoke fits the SF14B? The swap is just the yoke, correct? I needed a new u-joint anyway so I just bought the conversion one, but that's good info. I'm assuming your '94 'burb used the same rear as my '95 Yukon. My new rear was from an '88 light-duty 2500 (6 lug)

 

[HarryH3]

I don't know what the part numbers and such are, but I was able to remove the yoke from my 10-bolt (1994) and install it directly in place of the yoke that was on the 14-bolt SF.

 

[southernspeed]

Give Jess a call at Highangledriveline. Really helpfull guy.

 

[83ZZ502_Jimmy]

1310-1350 is Neapco PN- 3-3140

John

 

[loafer]

Harry, You're saying the S44 yoke fits the SF14B? The swap is just the yoke, correct? I needed a new u-joint anyway so I just bought the conversion one, but that's good info. I'm assuming your '94 'burb used the same rear as my '95 Yukon. My new rear was from an '88 light-duty 2500 (6 lug)

The 3R yoke from a 10 bolt will fit the 14 bolt 9.5 sf. I did it on mine and it works great. You have to swap the seal guard hub thingy from the stock 1350 yoke to the 10 bolt 3R.

 

[Blue85]

So the pinion gear splines are the same on 10, 12 and 14sf axles?

Won't putting the 12bolt yoke on the 14bsf require a different seal?