Ring and pinion question

[verceingetorix]

I might be getting a set of 1 ton chevy axles 60 front and a 70 rr out of a 87 chevy. Has a set of M-715 5.84 gears out of a jeep that I can have too. I was told the M-715 rear dana 70 had a .500 pinion offset housing. The chevy has a .625 pinion offset. Can the M-715 gears be used in the chevy axles with a spacer and what are your thoughts on using spacers. Also will I be able to use the carriers from the m-715 and will they work if I use the spider gears from the chevy axles. I would be using lockrights front and rear too.
Any help would be great thanks. Bart

 

[Hogback Fabrication]

Chevy didn't use a 70 rear in '87. Its either not a dana 70 or its not from a Chevy.

An M-715 would have a 60 front and 70 rear, both with 5.87 gears. I don't like the idea of ring gear spacers but it sounds like that would allow you to use those gears.

The carriers should interchange between dana 60's and 70's.

 

[verceingetorix]

It is a rear dana 70 will try and find the bom number to see what it is out of.

 

[Speedo]

Chevy used a 70HD in '87, it would be from a dually pickup or a SRW in a few C-30s. BOM for a dually axle should be a 605331-? the dash number would be dependent on ratio.

Gus

 

[tarussell]

GM most certainly did use a Dana 70 in 1987 like said up above .
Makes sure that you are using the one piece carriers if you are using the L/R's the older stuff should be a two piece carrier on the D70 ( D60 never came open diff two piece carrier ) and the side gears mat not work in the one piece carrier.

Tom