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-   -   what axle do I have? 1970 C30 (https://67-72chevytrucks.com/vboard/showthread.php?t=670281)

wshymas 05-11-2015 08:49 PM
what axle do I have? 1970 C30
 
I am not sure what rear axle I have in my 1970 C30. It is a cab and chassis with a 157 wb. 410 gears the gvw plate says 7200#. dual wheels 8 lug nuts and 8 smaller bolts on the hub. I will post some pictures when I get to a computer. thanks

SS Tim 05-11-2015 09:37 PM
Re: what axle do I have? 1970 C30
 
Chevrolet/Eaton H072 7200lb axle.

wshymas 05-11-2015 11:07 PM
Re: what axle do I have? 1970 C30
 
Thanks

special-K 05-12-2015 06:45 AM
Re: what axle do I have? 1970 C30
 
Same on GMC. They are referred to as Corporate rears or non-Dana in GM parts books. That is the tallest gear you can have with these rears.

wshymas 05-12-2015 07:18 AM
Re: what axle do I have? 1970 C30
 
1 Attachment(s)
Here are a few pictures. thanks again for the help.

wshymas 05-12-2015 07:27 AM
Re: what axle do I have? 1970 C30
 
1 Attachment(s)
sorry it will only let me upload one at a time

wshymas 05-12-2015 07:28 AM
Re: what axle do I have? 1970 C30
 
1 Attachment(s)
last one

special-K 05-12-2015 10:37 PM
Re: what axle do I have? 1970 C30
 
That's it alright. And you have 7/16" studs with flat back lug nuts like castle nuts. When the trucks got disc brakes in '71 the studs went to 9/16" and spreader rings with tapered holes were utilized to accept chamfered lug nuts


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