You know, I would stay with running a 7 1/4 in my car, if the repair parts were still available. The 7 1/4 SG rears are stronger then most realize. I ran 7 1/4 rears in my "A" bodies for many years. Most extreme was my 66 Cuda street/strip slant six car. 3250 lbs 170 slant on spray, 3.91 SG 7 1/4. ran low 13's on slicks. Only replaced it with a 8 3/4 when the SG clutches started slipping, and couldn't get any more.
But that wasn't the purpose of my remark, about not using other then Mopar parts.
Many of us are on a budget, and are not doing a resto. So I can not see the sense of "demanding" only Mopar parts, if there are other options.
