Guldstrand Leaf Spring Rubber Bushing Substitution

[David Pozzi]

You can test your springs for this.
I did mine by unbolting the rear axle, jacking it up so it's clear of the leaf. I then used a BIG adjustable end wrench, A 22" long one, I put it on the leaf next to the center bolt, I put it upside down so the handle pointed slightly up. I stood on the end of the handle and then calcluated the torque applied and measured the deflection angle of the leaf. This gives foot lbs per degree deflection.

Here's a thread where I posted my test numbers: https://www.pro-touring.com/forum/sh...ad.php?t=26583



If you have excessive lean where the rear axle bottoms on the bumpstop, the car will surely oversteer suddenly.
David