Sent you a PM.qtrracer, I forget if you told me this before and I can't find it in my PMs: Wasn't there a site you recommended buying the rear UCA spherical bearing and UCA from? It wasn't a "normal" site like MM or LMR, but instead was some guy who builds stuff for CMC/AI cars, iirc. I'm finally ready to go PM3L. Any advice appreciated.
Thanks. I tried to do as much research as I could beforehand. I haven't calculated the wheel rates, good to know they are well matched. I'll double check my chassis bushing.5 0. The F/R spring rates appear pretty well balanced. I found on my 86 that I had to run more rear bar to avoid some front push (my front springs are 300# C/O -270# wheel rate; your w/r is about 250). My front rate was not well matched to my rear (H&R Super Race w/r of about 140; more than 130#s difference while yours is about 40# difference).
If your rear is stepping out, I'd look at the poly chassis bushing. I suspect some bind at the limit. I was running all rod ends on my PM3L and didn't have a rear end issue; was always a front push issue.
Jack, Darius, any thoughts? I've purchased 375s to lower the front wheel rate and am still debating the merits of running the anti-squat brackets with the softer H&R 51650 RTA3 350-390# rear springs vs. just running the MM 43TA7 415-515# rear springs.What I'd really love to know is, given that the anti-squat % of a PM3L is the exact same as for a quadra-bind, if raising the anti-squat would affect the optimum wheel rate differential balance. I.E., assuming the 100# wheel rate difference front to rear is the correct starting point that I am thinking I've heard before, would anti-squat brackets change that to 125? 150? 50? Darius indicated that he ditched his brackets on his TA-equipped the car after it became oversteer happy. That, to me, would indicate that perhaps they would work with softer rear spring rates. Would love to hear Darius' thoughts on this.