The previous owner of my '52 GMC 152 (3/4 ton, same spindle as F18Delta's 3604) had the front spindles turned down to 1/2 ton spindle size to accept similar (maybe the same?) spacer/adapter parts to allow the kit to fit on the 3/4 ton spindles. Worked fine until one of the bearings failed after about 40,000 miles and wiped out the spindle.

I had a local machine shop cut down another 3/4 ton spindle to match the dimensions of a 1/2 ton spindle with the spacer adapter installed.

Picture below shows failed 3/4 ton spindle that had been cut down to 1/2 ton size with spacer added on the left. The spindle on the right is the 3/4 ton spindle the machine shop cut down for me.
Attachments
Both Knuckles.jpg (203.4 KB, 17 downloads)

Last edited by Bill Hanlon; 09/06/2024 9:17 PM.

'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.