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Jul 21st, 2025 | | | | Joined: Nov 2012 Posts: 431 Stovebolt Photo Moderator | | Stovebolt Photo Moderator Joined: Nov 2012 Posts: 431 | A friend of mine has a 1946 GMC truck in a garage that needs to be moved. His late father dismantled the front end and he can't find bearing numbers to put it back together to move it out of a garage he is losing. Can anyone offer a bearing number from a NAPA or Rock Auto for a 6-lug 46 to get this thing back to gether to roll onto a trailer?
The truck has stock spindles. He doesnt knoiw if it is a 1/2 ton or 3/4 ton - but like a say it has 6 lugs.
Many thanks - Joe
1947 - 3800 dually known as "Deadwrench"Link to a few photosIn this world there are givers and takers. The takers eat well, the givers sleep well. | | | | | Joined: Jan 2022 Posts: 1,986 'Bolter | | 'Bolter Joined: Jan 2022 Posts: 1,986 | '46 GMCs would have a model number on the "caution plate" (that's what the Master Parts Catalog calls it) under the hood on the right hand side of the cowl. 1/2 ton model numbers on the tag would start with CC10x or EC10x, where x = 1 = 115" wheelbase or x = 2 = 125 3/4" wheelbase. 3/4 ton '46 trucks would have a model number of EC152 and were only available in a 125 1/4" wheelbase.
bearings changed between the CC and EC models, so need to know that before we can zero in on the bearing numbers.
'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.
| | | | | Joined: Sep 2013 Posts: 1,288 'Bolter | | 'Bolter Joined: Sep 2013 Posts: 1,288 | Bill, would the 6 lug wheels not be a reliable indicator for a half ton? Perhaps GMCs had 6 lug 3/4 tons.
RonR
1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1964 CJ5
| | | | | Joined: Jan 2022 Posts: 1,986 'Bolter | | 'Bolter Joined: Jan 2022 Posts: 1,986 | Bill, would the 6 lug wheels not be a reliable indicator for a half ton? Perhaps GMCs had 6 lug 3/4 tons.
RonR What is left of my knowledge runs out with the pre-1947 models. Everything I come up with before that is just reading the Master Parts Book. And in this case the MPB shows two different diameter bolt circles that have 6 lugs.
'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.
| | | | | Joined: Nov 2012 Posts: 431 Stovebolt Photo Moderator | | Stovebolt Photo Moderator Joined: Nov 2012 Posts: 431 | Thanks Guys - I'll get back to you and see if we could find numbers on the cowl tag
Joe
1947 - 3800 dually known as "Deadwrench"Link to a few photosIn this world there are givers and takers. The takers eat well, the givers sleep well. | | | | | Joined: Jun 2005 Posts: 980 'Bolter | | 'Bolter Joined: Jun 2005 Posts: 980 | Joe-you might want to ask Phil,TrknGMC.
My 41 has TF axles, so I’m no help.
~ Victor 1941 3/4-Ton Pickup (in process). Read about it in the DITY Gallery1955 Grumman Kurbside "Doughboy" 235/3 on tree w/ OD 1957 3100 - moved on 1959 C4500 Short Bus "Magic Bus" - moved on 1959 G3800 1 Ton Dually "Chief" - moved on 1958 C4400 Viking "Thor" ~ moved on to fellow Bolter | | | | | Joined: Jan 2022 Posts: 172 'Bolter | | 'Bolter Joined: Jan 2022 Posts: 172 | And in this case the MPB shows two different diameter bolt circles that have 6 lugs. The two 6 lugs front hubs use the same bearing. Hub 369963 100AC,CC,EC,FC. 150AC, CC casting #599218 and hub 3694768 100-22,100-24 casting 3694768. The parts book doesn’t list a hub for the 150EC? Check the casting numbers, if 559218 the front inter bearing is 909052 (B52) outer 909001 (B01). Oil seal 3656536. Check Rock auto, eBay, Filling Station and NAPA $$$ they have them. Hub 3683232 8 lug 150FC casting # 3683232
Last edited by jimgmc; 10/26/2024 7:25 PM.
| | | | | Joined: Jan 2022 Posts: 1,986 'Bolter | | 'Bolter Joined: Jan 2022 Posts: 1,986 | The parts book doesn’t list a hub for the 150EC? Jim: My MPB (revised December 1953) has 150 EC hub as part number 3680898, but it doesn't list bearings for that hub. Earlier 150s AC and CC used the same set as 1/2 tons while FC and newer used the 909026/909027 set.
'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.
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