1350 yoke for a 12 bolt?

[uberbeans]

I've heard mention of an upgrade to a 1350 yoke for a 12 bolt. How does this work? Does it come directly off of a 14 and fit the 12? As I am not going to upgrade to a 14 until I blast my 12 to bits I would like to try this out. I think this may be sooner than later with my Detroit/4:56's and 37's. I'm not rock crawling here in Florida, mostly mud and trails.

I know that this has been discussed before but what 14 boltFF directly bolts up to a Blazer? Just in case I come across on to buy whats a good price? What other mods need to be done to it? Thanks in advance.

 

[pauly383]

It comes off of a 12 bolt installed in a 4 speed truck , not all , but all the ones I have seen . FWIW , I don't have one and mines holding up to real wheeling , and daily driving chirping tires with a locker .

 

[uberbeans]

I have a 1980 with a sm465 tha came that way from the factory. Maybe mine already has the 1350 yoke. Is there a way to tell?

 

[pauly383]

Measure the u-joint

 

[fabjunkie]

My '77 was a 1310 joint fwiw.

 

[uberbeans]

Measure the u-joint

What are the measurements for the 1350 and the 1310? Thanks.

 

[pauly383]

What are the measurements for the 1350 and the 1310? Thanks.

The 1350 ( from baddog in the part # thread ) is 3.625 x 1.188 .

1310 is smaller diameter ( from me ) .

 

[marv_springer]

Does it come directly off of a 14 and fit the 12?.

I got one from the dealer. Think the application was for a 14b SF. I had to change the pinion seal.

Marv

 

[mrk5]

I got mine from High Angle Driveline, a vendor on CK5. IIRC it was $70. It is also a u-bolt style. I needed a new one, so I figured what the heck.

 

[Jimbo*]

Here ya go: ebay #320018710556
Jimbo

 

[Ryan B.]

I used to run a billet 1350 ubolt style yoke from mark williams.

 

[uberbeans]

Here ya go: ebay #320018710556
Jimbo

I saw that on ebay and it looks like a something I would want? Is it a good price? Do you recommend modifying the drive shaft for a 1350 or using a combo u-joint?

 

[mrk5]

I saw that on ebay and it looks like a something I would want? Is it a good price? Do you recommend modifying the drive shaft for a 1350 or using a combo u-joint?

I think you did alright on the deal. Not a steal, but you got lots of extras with it. Like I said, I paid $70 for the 1350 yoke from HAD, with u-bolts. The cool thing is that he milled the piece so it would use my factory seal. IIRC, the factory 12bolt 1350 had a different size, bigger.

If you've got the funds, swap out the yoke on the driveshaft. It'll make joints cheaper. Plus if you do go to a 14bolt, you're set.

 

[pauly383]

IThe cool thing is that he milled the piece so it would use my factory seal. IIRC, the factory 12bolt 1350 had a different size, bigger.

For sure it does . When we put my 3.73 12 bolt under my truck , it came from a 4 speed truck , I put my auto yoke on it and the damn thin leaked because I didn't reaize the seal was bigger on the 1350 yoke originally on there .

FWIW , my DD runs 1310 on a formerly 1350 axle