Am I Crazy For This Idea?
The A body upper control arm only fits A body cars.
There were TWO A body upper control arm designs as far as I have seen. ALL models through 1972 used a small upper ball joint no matter the brake style, 9", 10" drums or the 11" discs. In 1973, things got busy. Slant six cars with 9" drums still used the same small upper ball joint. ALL cars with 10" front drums or 11" discs used the larger upper ball joint that was also used in every F/M/J/R and B body.
Here is the short story: IF you have 9" drums, you'd either need the big ball joint upper control arms OR call Dr Diff. He sells a spacer kit for $50 that allows the use of the small ball joint with the disc knuckless/spindles. You will still need 73-76 A body disc LOWER ball joints. The Aspen/Volare used a different lower ball joint and steering arm design.
The Aspen/Volare axle is a good swap if the spring perches are moved to fit the A body position. The axle is wider as stated but that is a good thing. Dusters/Demons and Dart Sports with stock rear axles have that narrow looking, sunken in tire look. I have a similar width B body axle on this car with a 5.5inch rallye wheel.
The A body upper control arm only fits A body cars.
There were TWO A body upper control arm designs as far as I have seen. ALL models through 1972 used a small upper ball joint no matter the brake style, 9", 10" drums or the 11" discs. In 1973, things got busy. Slant six cars with 9" drums still used the same small upper ball joint. ALL cars with 10" front drums or 11" discs used the larger upper ball joint that was also used in every F/M/J/R and B body.
Here is the short story: IF you have 9" drums, you'd either need the big ball joint upper control arms OR call Dr Diff. He sells a spacer kit for $50 that allows the use of the small ball joint with the disc knuckless/spindles. You will still need 73-76 A body disc LOWER ball joints. The Aspen/Volare used a different lower ball joint and steering arm design.
The Aspen/Volare axle is a good swap if the spring perches are moved to fit the A body position. The axle is wider as stated but that is a good thing. Dusters/Demons and Dart Sports with stock rear axles have that narrow looking, sunken in tire look. I have a similar width B body axle on this car with a 5.5inch rallye wheel.
