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TooMany2count · 12-08-2008, 01:37 AM

IF the GMC and Chevy's use the same parts then the king pins are not the same.
I did a 3600series truck years ago & wanted to do the same thing. King pins were different, 1/2ton(3100) are .8660-.8665 using a floating bushing that is 1 5/16x.867-868.
The 3/4ton and up(3600-3800-4100-4400series) king pins measure .9210-.9214 and the bushing are pressed into the steering knuckle which measures 1 17/64x.922-.923.
This can be found on THIS PAGE...joe

12-08-2008, 01:37 AM	#2
TooMany2count Who's in CHARGE?????????? Join Date: Nov 2002 Location: Cahokia, IL Posts: 454	Re: 3/4 to 1/2 ton spindles IF the GMC and Chevy's use the same parts then the king pins are not the same. I did a 3600series truck years ago & wanted to do the same thing. King pins were different, 1/2ton(3100) are .8660-.8665 using a floating bushing that is 1 5/16x.867-868. The 3/4ton and up(3600-3800-4100-4400series) king pins measure .9210-.9214 and the bushing are pressed into the steering knuckle which measures 1 17/64x.922-.923. This can be found on THIS PAGE...joe __________________ Send a card to a soldier in Iraq My Music PlayList Large Marge Donate Blood,Plasma,Platelets & sign your DONORS CARD & SAVE a LIFE Last edited by TooMany2count; 12-08-2008 at 01:38 AM.