Time to change out rearends.

66fyssh said
I swapped the entire unit from another barracuda so I'm not sure what springs they are. There are lots of threads here about different brands and part number of springs. The important thing is to make sure your pinion angle is correct when you mount the housing on the spring perches. Lots of discussion on here about pinion angle also.

Great idea of soaking the nuts...it will help for sure. You'll love the 3:55. That's what I went to and except for the long highway drives, I love them.

I just swapped the rearend in my 70 Dart with a big bolt pattern from my 73 parts car,,, soaking the nuts is good but I also heated the area up with a bottle of Maps gas,, that and my battery impact worked great. I wanted to use my springs so I just lowered the back and rolled it out and in with the jack. Then new U bolts.