Hello all,
I've run into an interesting problem. I took out my sad sagging rear springs and replaced them with new BDS springs. The new springs are considerably more arched, thus making them slightly shorter from "eye to eye", or from hole to hole than the old sagged springs, which makes sense. I put in the new springs and noticed that the center pin on the new springs sits more forward than the old center pin. I reckon this could be attributed to the added arch of the springs, which would suggest that with the springs compressed upward, the spring center pin would move back. makes sense.
Here's the problem: with the new springs in, I tried setting the rear axle down to center the perches on the spring center pins. When I attempted to do this, the axle wouldn't move far enough forward to settle down into the spring center pins, suggesting that the center pin was too far forward, the driveshaft actually would not allow the axle to be moved any farther forward. ???
I need a little help on this one.
Do I need to compress the springs with a jack to allow the center pins to move back and then set the axle down? Or do I need to have my driveshaft shortened? Has anyone experienced this problem?? Seems a few have installed BDS on fj60s.
Thanks for all your help

I've run into an interesting problem. I took out my sad sagging rear springs and replaced them with new BDS springs. The new springs are considerably more arched, thus making them slightly shorter from "eye to eye", or from hole to hole than the old sagged springs, which makes sense. I put in the new springs and noticed that the center pin on the new springs sits more forward than the old center pin. I reckon this could be attributed to the added arch of the springs, which would suggest that with the springs compressed upward, the spring center pin would move back. makes sense.
Here's the problem: with the new springs in, I tried setting the rear axle down to center the perches on the spring center pins. When I attempted to do this, the axle wouldn't move far enough forward to settle down into the spring center pins, suggesting that the center pin was too far forward, the driveshaft actually would not allow the axle to be moved any farther forward. ???
I need a little help on this one.
Do I need to compress the springs with a jack to allow the center pins to move back and then set the axle down? Or do I need to have my driveshaft shortened? Has anyone experienced this problem?? Seems a few have installed BDS on fj60s.
Thanks for all your help
