Does anyone know the size of a 1946 3/4-ton Chevy kingpin diameter? I have a chance to buy a set of adjustable hand reamers at an auction and my 46 needs new kingpins.
Thanks Don
Last edited by 2-Ton; 11/08/20252:38 AM.
1967 GMC 9500 Fire Ladder Truck "The Flag Pole" In the Stovebolt Gallery 1946 2-Ton grain truck 1946 3/4-ton pickup, 1953 1-ton pickup 1957 1-ton flatbed dually, 1954 Pontiac Straight Eight Of all the things I've lost in my life, I miss my mind the most!
PS - I moved this to the Driveline forum where it fits best.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
I have a 0.921" fixed reamer that I used once on my '52 GMC 3/4 ton. You pay the freight both ways.
'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.
Thanks Dan, that is just the info I was looking for!
Bill, thanks for the offer but I think I can pick up a whole set of adjustable hand reamers for about the cost of round trip shipping.
Jammer, a cylinder hone is what I was planning to use to finish right to the desired clearance, after the adjustable reamer gets it close. I’ll be shooting for no more than .001 clearance for a good slip fit. If I was still working, I would make them myself.
Thanks Don
Last edited by 2-Ton; 11/08/202511:50 PM.
1967 GMC 9500 Fire Ladder Truck "The Flag Pole" In the Stovebolt Gallery 1946 2-Ton grain truck 1946 3/4-ton pickup, 1953 1-ton pickup 1957 1-ton flatbed dually, 1954 Pontiac Straight Eight Of all the things I've lost in my life, I miss my mind the most!
The correct guided reamer that Bill offered above is what you need. .921 is correct. I did mine a few years ago and my 41 ford with same type of tool but different size and it does a great job. Basically the tool is the line bore when you can go at it from both sides.
I found both on ebay for pretty cheap. All I did was find correct part number from a early magazine and it popped right up.
I’ll be shooting for no more than .100 clearance for a good slip fit.
I think you have the zeroes in the wrong place.
'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.
Thanks Bill for pointing that out. And yes, I did type that wrong earlier today. It should be .001 tolerance. This getting older has it's new challenges! Edit will be next.
Don
1967 GMC 9500 Fire Ladder Truck "The Flag Pole" In the Stovebolt Gallery 1946 2-Ton grain truck 1946 3/4-ton pickup, 1953 1-ton pickup 1957 1-ton flatbed dually, 1954 Pontiac Straight Eight Of all the things I've lost in my life, I miss my mind the most!
I often have a problem we used to call "a short between the keyboard and my chair".
'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.
Bill, I look at it as live entertainment and it’s starting to happen more often with about anything I do. I just laugh it off and move on.
Don
1967 GMC 9500 Fire Ladder Truck "The Flag Pole" In the Stovebolt Gallery 1946 2-Ton grain truck 1946 3/4-ton pickup, 1953 1-ton pickup 1957 1-ton flatbed dually, 1954 Pontiac Straight Eight Of all the things I've lost in my life, I miss my mind the most!
