chevrolet 12 bolt
 

the code is W U on a 12 bolt rear end what does the code stand for, I know the dates and the shifts but not the wu code thank you

Re: chevrolet 12 bolt
 

http://www.chevellestuff.net/1969/rear_axle.htm

I think you need to give a little more details.

All I see is W for Warren Michigan.

I attached the link to 1969 Axle codes, but all other years are a click away.

Maybe not a Chevelle axle?

Ryan

Re: chevrolet 12 bolt
 

Possibly a Pontiac rear.

Kurt

Re: chevrolet 12 bolt
 

hi ryan thank you it does shows w u 01 07 then a k-

Re: chevrolet 12 bolt
 

hi kurt that's I was thinking maybe

Re: chevrolet 12 bolt
 

WU might come out as a 3.08 open.

Re: chevrolet 12 bolt
 

http://www.loegtos.com/portal2/Technical/Axle.aspx

Looks like Kurt knows more than Chevelles.

3:31 non posi 1970-71-72 GTO rear end......?

Ryan

Re: chevrolet 12 bolt
 

could be a miss stamp also, who knows back in those days

Re: chevrolet 12 bolt
 

Ya ,those older guys like Kurt know a lot about rear ends, good job Kurt, ha.

Re: chevrolet 12 bolt
 

Not a mis-stamp. Most likely out of a 1970-72 Grand Prix or GTO. 3.31 open. They used Chevrolet 12 bolt style rear ends in 1970-1972 in the Grand Prix's or GTO's with larger cubic inch engines.