Cheapest way to get posi

[Bonnewagon]

Smart man. Don't mess with the rear if you are not educated on it and have the tools needed. MUCH easier finding a whole rear as well as cheaper in the long run.

 

[Crapple21]

That's what I'm going to start looking for is a whole rear end.

 

[thedoctorisin]

I got one from a 84 trans am in the junk yard for 35$. The ring gear has reverse threads, but purr than that its pretty straight forward to do.

 

[Crapple21]

I just don't want to mess anything up because I have never messed with a rear end but I guess there is only one way to learn :shock:

 

[Bonnewagon]

"I just don't want to mess anything up because I have never messed with a rear end but I guess there is only one way to learn :shock:" Do yourself a favor. Go find a factory manual and read the section on differentials. THEN see if you want to tackle it. I dare you! :shock:

 

[Crapple21]

Ya id rather just find a whole rear to swap in.

 

[Crapple21]

I found a guy here locally that says he has a monte Carlo posi what should I look for and how do I tell if it's actually a posi or not since it's out of the car and he wants 250 for it does that seem like a fair price?

 

[-83MONTESS-]

You can normally tell if its limited slip by spinning one axle and watching the other one. If the other one spins in the same direction its limited slip, if it spins in the opposite direction or doesnt spin at all its obvious an open dif. You could also pull the diff cover off and check that way. What year monte and is it an SS or LS??? I found a limited slip from an 86 SS with 3.73s for $100 😀

 

[Crapple21]

Not sure what year it is the guy didn't put his phone number in the ad so I have to wait for him to respond to find out more info. And that's a good deal and thanks for the info

 

[Bonnewagon]

First find out what year he thinks it is, and ratio, then look up what the codes should be. When you go to look at it bring a wire brush or sandpaper. There should be a code on the axle tubing on the pass side facing forward a bit closer to the brakes than the center. But as suggested the best way is to bring a socket wrench and remove the cover and look for yourself. A posi is immediately recognizable and the gear tooth numbers will be stamped into the edge of the ring gear.