Which rear end do I have

[Gus350]

Took the axels out and drum brakes off to rebuild with disc brakes. Need to know if I have to older rear end or the newer one measures 57 inches from plate to plate.
Posted via Mobile Device

[uncle]

If 12 bolt its 70-72. 5 lug 71-72
Posted via Mobile Device

[Gus350]

It is a 12 bolt.
Posted via Mobile Device

[CC69Rat]

Measure your axles from the mounting surface (where the back side of the wheel would make contact) to the end of the splines. The early ones are 30 1/2" Later ones were 31 5/16" (not all were 5 lug.. some 6 luggers with the longer axles)

Usually if you find the OEM 5 lug axles they will be for the later rear end. Most 5 lugs @ 30.5" are some sort of aftermarket in my experience

Hope this helps..
Chad

[uncle]

Widened housing in 70 still 6 lug. 71/2 5 lug.
Posted via Mobile Device

[Gus350]

Thanks chad they are the 31 5/16 inch ones
Posted via Mobile Device

[CC69Rat]

If you're swapping out and the bolt that holds the pin breaks when you take it out.. I have the tool to fix it.

Let me know.. 85% of the time the bolt will break off down in the hole. Major PITA to fix if you don't have this tool.. you're welcome to borrow mine.
Posted via Mobile Device

[Gus350]

I got the bolt out okay but the pin broke just above the hole where the bolt goes in the pin. Where would be the best place to get a new pin.
Posted via Mobile Device

[CC69Rat]

Eww.. I don't know. Humm

Let me look around.. PM Randy and see if maybe he has one? Post a WTB on the parts board maybe?

.. in the mean time I will see what I can come up with. What ratio is in it now?
Posted via Mobile Device

[Gus350]

Not sure what gears are in it didn't have my glasses on today couldn't read what was stamped on the main gear I guess the ratio will be stamped on there this is my first rear end rebuild so I'm learning as I go.
Thanks for the help
Posted via Mobile Device