Ron- Good to see that you got Brett to square the car for you…
As I mentioned to you before you picked up the car.. I have done two A/M subs & had issues getting them to square up per Fisher manual instructions with the pins… I have always used these bushings on stock subs & my DSE installs with no alignment problems.. As I showed you examples when you paid us a visit to discuss subject that was a issue.. The modification you did to them works but would like to see a pic of what the alignment looks like on the body to sub per Fisher manual instructions… No matter what.. the goal is to everything square & 1/16 to hold for tolerance is acceptable in book.. That is all we work towards here @ the shop
On the original install that they did for you… you used the Fisher manual instructions per attached sheet with pins in position like the pic attached..
Quote:
Originally Posted by Ron in SoCal
Good question Greg and Rick is partially right. On the original install, we used a dowel pin/subfr alignment tool along w the GM factory manual (actual Fischer frame straightening dimesnions manuals, not just the eBay repros). We got it to 1/8" tolerance.
At Cris' shop, in an effort to lower the car we modded the trans tunnel and installed Cris' 1/2 height subfr bushings which actually have tighter tolerances to the subframe holes.
When Brett and I decided to get it to 1/16, the bushings didn't allow Brett to jog the sub over to get us there so he had to do a little clearancing.
So yes, scope creep played a part for sure...  |