I recently bought a PA 2 inch body lift off a member here. And I just installed it today. Got it all done today except the rear bumper due to loss of daylight . But I went for a test drive when I was done for the night truck started fine no problems but when i shift to any gear truck idles down and almost stalles out. But it has stalled a couple timesany ideas of Wat ny problem is. I'm gunna go out tommorow and check it out I'm too tired now and its too dark. Wat would cause ny idle to drop when shifting after body lift install???

 

did you disconnect any grounds ?

 

the ground at the fire wall has to be disconnected and redone with a bracket they give you. its on the pass side check that out for connection

 

Make sure the vacuum line to the brake booster didn't get pulled off too.

 

I did redo the ground strap on pass side firewall with the new bracket they gave me. But ill double check to mmake sure its making a good connection
And i didn't touch any vacuum lines but ill check then all too

Edit... Went out this morning and it shifted fine no problems.. it fixed itself over night