[vin63]

Originally Posted by bcdeutsch731

Thanks on the compliments guys.
My chassis guy was a no show tonight, so now I'm trying to find the best place to start with the 4-link bars.
Any of you know anything about 4-link suspension?
L/F=1500 R/F=1420
L/R=1000 R/R=920
Wheel base 114"
Tires M/T slick 31x13.0-15
Truck balance on jackstands with angle iron on them so it came to a point ^ 71" in front of rear axle center line.
Axle center line to ground is 14.312"
Front bracket lower hole is 4.687" off ground
Distance from axle center line to lower hole on front bracket is 23.25"

If someone can help what else do you need to know?

Thanks
Brett

Brett, I would try starting out with the IC right around 63" and 2" above the ground and see how it likes it. Make all of your pre-load and shock adjustments (increasing firmness incrementally on the compression and rebound) according to how the truck launches first before making additional 4-link changes (so that the truck launches straight). Keep detailed notes for each adjustment. Have fun testing the new suspension.