Rear end

[bigblockstepside]

I have a 1977 c10  1/2 ton a was looking for information on what other factory rear end with posi traction could be swapped in with no problem any and all information would be greatly appreciated.

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[Irish_Alley]

you want to swap rear ends or just the gears? a full swap would be cheaper i think. but what rear do you have now?(take a picture if you dont know)

[bigblockstepside]

12 bolt half ton 5 lug  WHOLE rear end would be fine

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[bigblockstepside]

Just looking for an easy swap from anything else that would bolt up

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[roundhouse]

Only thing that's a bolt in would be from another square body
Hard to find
The back axle is way too weak for a half ton
In the junkyards all the back axles are
Missing


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[Captkaos]

anything from 73-81 C10's with a 12bolt is a bolt in, anything 78-87 C10's is a bolt in but you have to use a hybrid u-joint.

[SkinnyG]

I searched high and low for a decent 12-bolt for mine - they were all junk.  I ended up coughing up the dough for a full-on rebuild of mine, with a TrueTrac diff. 

Hard to find a decent anything that last rolled off the assembly line in 981.

[roundhouse]

14 bolts are easy to find
They are strong
10 and 12 bolts are typical weak GM cost cutting junk that had no business under a full size pickup



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