Switching posi rear end to another truck?

[BrookelynnGreen]

I have two 1986 Chevrolet SWB both C-10's I think...

Anyways, my blue C-10 has a Posi Rear End, and the Red C-10 does not. I was wondering if possible, can I switch the rear ends on the trucks since they are both the same year? Maybe put them side by side and just swap?

Blue 86 Chevy has a 350 with posi
Red 86 Chevy has a 454 without posi

I want my MORE powerful engine to have the posi track rear end.

IS THIS POSSIBLE???

[76Charlie]

Yes it is very possible, check clearances and make sure the size is the same. a 14 bolt corporate rear end for a 3/4 ton truck isn't the same as a 12 bolt. Just measure to be double sure and go for it!

[BrookelynnGreen]

What exactly do I measure? And what all do I need to unbolt to switch? This will be my first time taking off a rear end on a pickup so I'm new to this, but I can do it. Just need a little assistance please
Posted via Mobile Device

[cory d]

i believe the 14 bolt is a larger diameter

[Keith Seymore]

Originally Posted by BrookelynnGreen

Blue 86 Chevy has a 350 with posi
Red 86 Chevy has a 454 without posi

Doesn't sound good to me:

Blue truck could be a 1/2 ton (5 lug, 8.5" ring gear 10 bolt, probably).

If the red truck came with a 454 it can't be a 1/2 ton, because that engine was not available. Probably a bigger axle with 8 lugs.

Can you count wheel lugs and report back - or - did you put the 454 in the red truck?

Unless you are ok with 5 lugs on the front and 8 lugs on the back

K

[stroker87]

Originally Posted by BrookelynnGreen

I have two 1986 Chevrolet SWB both C-10's I think...

Anyways, my blue C-10 has a Posi Rear End, and the Red C-10 does not. I was wondering if possible, can I switch the rear ends on the trucks since they are both the same year? Maybe put them side by side and just swap?

Blue 86 Chevy has a 350 with posi
Red 86 Chevy has a 454 without posi

I want my MORE powerful engine to have the posi track rear end.

IS THIS POSSIBLE???

I had a 10 bolt in my 87 2wd, I bought a used empty 12 bolt housing from a 78 4wd (if i remember right) all my brake stuff bolted up to it, it was a 6 lug originally I installed Superior axles in 5x5 bolt pattern I think they was like $220 from summit I used my stock drive shaft too

so you should be able to but just the difference in axles bolt pattern it what you might want to look in to?

[76Charlie]

Get a jack or something to hold the rear end up. Disconnect the springs, raise the truck as well so it doesn't crush you. In bolt the hangers, they look like U's, disconnect brake lines. thats it. Check the bolt pattern on both and see if they match, if they don't it still will be ok, Measure length from rear end to transmission so drive shaft lines up. that's it