I have 10 bolt/27 spline 8 1/4 non sure-grip. What is most economical way to swap? Guts? Axle? Where to find if used?
Has anyone tried this:
https://www.monicattichrysler.com/comersus/store/comersus_viewItem.asp?idProduct=795
Thanks.
1. I agree with Wile-E that swapping out the entire rear end for another used one is almost always the easiest and the cheapest.
a. find a 8-1/4" that is the correct size (check online). This might be a good time to find one with different gears or posi-traction (aka sure grip).
b. buy some new U-bolts + might as well get some new rear leaf spring bushings.
c. block front wheels & lift car up until the weight is off of the springs (maybe 4" before tires actually come off the ground) & support car with axle stands.
d. support rear end with another set of axle stands.
e. un-hook driveshaft.
f. disconnect brake lines & emergency brake cable.
g. cut u-bolts & roll/slide rear end out from underneath car.
h. re-install replacement rear end in reverse order using new u-bolts & rear leaf spring bushings. You might want to install new "iso-link" bushings where the leaf springs/u-bolts go while you're at it to.
2. If you hot rod the car at all OR if you plan to keep it a long time, you might want to consider a 8-3/4" rear end swap. It will cost more & is more difficult, but it is WAY stronger. I had a '77 Cordoba 400 4bbl. car and a shop did the swap for me (I didn't know how back then). I was told that the 8-3/4" came out of a '75 Charger (what I was told anyway).
a. I believe you need to remove the "iso-link" bushings (Cordoba guys speak up please)
b. You will likely need a different driveshaft.
c. It pretty much bolts right in.
e. an 8-3/4" rear end will handle just about anything you want to put in the Cordoba
