Cracked carrier bearing adjuster

[T2R9]

There is no evidence the 8-3/4 was ever apart until I disassembled it. Appears that this adjuster has been like this for years if not the original installation. Anyone seen one like this? Once I cracked the cap bolts it smoothly backed off.

Run or replace? Anyone have a spare, Lol?

 

[davek]

Doc Diff,Cass might have one. Quality Body Shop Drivetrain That is a 489 rear end correct Jeff?

 

[T2R9]

Yup 489 case. I have another complete third member here, just would hate to rob one part off it. Dr. Diff don't show any on his site.

 

[T2R9]

Kinda curious more than anything if anyone has seen this. Don't really see how it would hurt anything as one the backlash is set and caps locked down it's not hurting anything.

 

[davek]

Someone on here has one,start a WTB thread.

 

[davek]

does it just screw in and centers everything?

 

[T2R9]

does it just screw in and centers everything? View attachment 1708513

Exactly what it does. It's how you adjust the back lash.

 

[davek]

maybe Differential Carrier Bearing Adjuster Mopar 68348590AA for sale online | eBay

 

[steve340]

I would look around for a replacement part.
It may have been something to do with the manufacturing - bent while too cold causing a crack?

 

[eldubb440]

does a 742 case have that part? I have a box full of 742

 

[493 Mike]

does a 742 case have that part? I have a box full of 742

Yes. Try welding the crack, you have nothing to lose. If it screws in easily-use it.
Mike

 

[68plymouth383]

I have a few good used ones if you are needing 1

 

[70bigblockdodge]

They are the same across all carriers. If it is not manufacturing defect (which I think it is). Usually the cap on the driver's side cracks and then things get messy.

 

[dadsbee]

I would hope that 6 months later he has it fixed up....