Suspension rebuild and disc brake swap...by a noob for noobs
After a few days of satisfactory driving with the new rear end, I was ready to dive into the front suspension and brakes. The goal was to have the same setup you would have had on a 1974 car from the factory with disc brakes, with two exceptions. First, I went with 1976 calipers which have a larger piston than the 1973-1975 calipers. Second, I got offset upper control arm bushings to increase caster. One of my complaints had been a lack of steering feel and stability on the highway, and some research on FABO told me that (1) increasing caster could help, and (2) you'll never get enough caster with regular control arms and bushings.
First, the parts list. I considered several disc upgrade kits and almost went with The Ram Man's kit, which is essentially factory parts and includes a sleeve so you can keep pre-1973 upper control arms. In the end I decided to put together my own kit. There's a nice parts list for the 1973+ disc swap at
Disk Brake Conversion Info. In my case I didn't need new upper control arms since I already had the 1973+ suspension. The hardest parts to find are the spindles, a.k.a. steering knuckles which you can only get from a donor car. I got some sparkling ones, including the wheel bearing hardware, caliper brackets and dust shields from FABO user hemi71x. Here's the whole disc swap list:
- Rotors, RockAuto
- Lower Ball Joints, RockAuto
- calipers, RockAuto/Amazon
- Spindles, dust shields, caliper brackets, axle retainer & nut, from FABO user hemi71x
- Brake pads, RockAuto
- Rubber hoses, RockAuto
- Inner and outer wheel bearings, Napa
- Inner bearing seals, Pep Boys
- Wheel bearing dust caps, RockAuto
- Proportioning valve, Dr. Diff (eBay)
It would have been cheaper to get the kit, but I could have saved some money by getting a used proportioning valve and less pristine spindles.
Next up: the front suspension parts.