Re: Rear coil spring insulator question
So I put the new rear suspension in along with the 12 bolt. I put the insulators on the top only, and clocked the springs according to what I've read the manual says.
After jacking up the axle and installing the shocks, my pinion angle is off - but I expected that, as I have the TA performance no hop bars and also adjustable upper arms which I set to stock length for a starting point, so it landed pretty much exactly as I thought it would.
The interesting thing is how the springs are sitting on the rear end perches. I can see why they said to clock them as I did, as the way the spring is shaped, with them clocked as they are (upper spring end is pointing towards the passenger side of the car on both springs) the lower spring coil actually catches the spring perch on the axle nicely as it rotates up. If they were clocked differently the spring wouldn't maintain as nice of a contact with the axle spring perch as the axle rotates under acceleration.
Next will be to shorten the upper arms to get the pinion angle back where it should be.
Thanks for the help all.
1972 Chevelle, 454, 200-4r non-lockup, 12 bolt 3.73
1981 Camaro Z28, 355, TH350, 3.73