1968 cadillac front cup size?

I have a 1968 cadillac coupe deville and i have read through all the threads and got different info on cups for the front. What size diameter and how tall for top and bottom. The rear I read to lenghten the bars 1 1/2 inches and mount the bags on the bars. Is this right ?

The cups should be the same diameter as your stock springs if you are making them yourself ,if not fullsize chevy ones should work. As far as how tall to make them once you take the spring out jack up the lower comtrol arm till it stops and see if any trimming can be done to get it up more then measure from inside the spring pocket to the lower control arm and thats the total hieght you want your cups with bags fully collaps to be.

Edited: 4/17/2007 2:03:39 PM by bagged300mondubs

on the front of my 70 i used a 2 inch cup on top and the bottom i used a 1 inch cup, the cups were from a full size chevy. the rear i am still finishing, but i just put the bags over the axle and a 1 inch cup on top, i also put a 2.5 inch notch to get it to lay in the rear