bronko69er
EB Addict
BUCKETOBOLTS said:With moving the rear back and adding the doubler, I'm not sure what my pinion angle is going to be. I'll have to do a mock-up first and tack the perches. Then finish welding latter. I have also given thought to moving the springs under the frame rail rather than beside them like the factory. I know the further apart they are the more stable the rig will be, but how much actually makes a difference?
My first thought is, how much lift would it make? 4"-6"?
Second thought is that it would be quite unstable. If it is improved articulation you are after, there are other safer ways to do it. I'd put in longer leaves or even the drooping rear shackle mount (someone has the pic) before I would move the springs in that far.
To answer the stability difference (based on leverage) question do this:
~57/~36 (original axle width/srping spacing) = 1.583
~65/~30 (new axle width/new spring spacing) = 2.167
100 - 100x(1.583/2.167) = 26.95% less stable
You can fine tune the numbers if you're interested in a more accurate answer.
Last edited:










