I have enjoyed reading your posts regarding CSRP drop-spindles, caster, and suspension and steering tech. I've got a 68 that I've owned for awhile... originally all stock when i bought it in 1988, I later did a full swap from PS to manual with 16:1 Flaming River box. Still too sloppy and it darted in and out of every groove. I've been running 16x8 wheels with 225/50, 1.5" shelby drop, and have it set to 3 degrees caster - but still no fun to drive. All else works fantastic, but the steering has killed the joy.
This winter, the car is back on stands for more work/mods. I have installed a KRC powered Steeroids rack with 2.5 turns, have roller upper arm, roller perches, Maier's Ultegra shocks, progressive rate springs, and just today -- CSRP drop spindles were ordered. Re the spindles, I'm already running a 70 drum, so the bearing set is no issue. The issue now though, as Hushkinhano mentioned, are the 65-66 spindles for my 68, and potential bump-steer.
Here are my options: I have both the Pro-motorsports kit (lowers and moves outer-rod in) as well as a TCP bump-kit (only lowers). I will be running 4 degrees caster (per Steeroids), 1/8 toe, and .5 degree neg camber. I have adjustable strut-rods, so no prob. Back to my question -- advice / suggestion as which bump-kit to run? Other info related to front suspension and steering would be lovingly welcomed. Summer is coming...
I fear that you are "out of the frying pan & into the fire" with the addition of the rack. Just my personal opinion.
I almost sold my '66 when I came to California as it was literally undriveable on the freeways here. The actual problem was
alignment- a precision alignment fixed the issue. There is a big difference between "I did it at home" and someone who
sets up cars professionally did it on an alignment rack. (not the Les Schwab or Sears, etc.)
As I later went with more aggressive suspension and less-compliant tires, I landed again in the land of tramlining and other
such obnoxiousness. This time it was the lower arm bushings and that horrible idler arm bushing used in 65/66.
Every design has its weaknesses..... which then must be addressed when you uncover them.
The take-away is that I've also got a '68 with big tires and tubular suspension. It doesn't do anything funky AFA tramlining.
(you can't use 65/66 spindles on a 67/68 and not expect bump issues....... I just caught that part of your post)
I just think you went overboard with the R&P swap. I'm glad I don't have to crawl under there and "tune" it.
ex-Global West GM