Serial Numbers
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Senior User
Joined: Sep 2014
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From: Michigan
Serial Numbers
So I am trying to figure out what the serial numbers on my truck mean. The number on the bell housing is *799T-1919186* and the one on the frame is *(79)9T(-)1919186*. I put the parenthesis around the numbers that aren't readable, but I assume they are the same. The last set of numbers 1919186 also appear on the title. But supposedly the motor is an 8BA which wasn't original to the 47 trucks. It should be a 59 series motor right? But the distributor is mounted in the wrong place. I'll include pictures of everything. I need to buy parts for the motor and don't want to get the wrong stuff.
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Joined: Nov 2001
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From: Orange County, CA
Nope, nothing else comes from the serial number. These numbers aren't like newer cars where you can gather a bunch of info about the vehicle from the number. Just year, model, engine and the unique serial number of the vehicle. I don't have my books with me, but there were only 2 or 3 rear axle ratios available and only 1 4-speed gear box.
7= 1947
99T= Heavy Duty V8 truck
Numbers after dash are the serial number if that particular truck
7= 1947
99T= Heavy Duty V8 truck
Numbers after dash are the serial number if that particular truck
Cargo Master
Joined: Aug 2010
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From: Houston
There were only two ring and pinion sets offered on the two speed, 5.83 and 6.33. The second ratio was under.
I think the ratios for the single speed were 5.14, 5.83, and 6.33.
Note: corrected the lower ratio
I think the ratios for the single speed were 5.14, 5.83, and 6.33.
Note: corrected the lower ratio
Last edited by 38 coupe; Feb 11, 2017 at 07:16 PM. Reason: correct error in axle ratio
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From: Michigan
Okay, I figured the ratio would be lower than that, in the 9's or 10's, to make up for the lack of horsepower these engines produce. Also the PO told me that it has a mercury block and EAB heads, and that this combo would give it a higher compression and therefore a couple more ponies than stock, is that true or not?
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Cargo Master
Joined: Aug 2014
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From: North Central Arkansas
The two speed axle will have either 5.83-8.11 or 6.40-8.83 ratio. The Mercury engine would have 15 to 25 HP more than the stock engine, possibly a little more with the EAB heads.
Mark
Mark
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From: Michigan
Is there anyway to verify the mercury block? I will be pulling the heads to make sure the valves aren't stuck. I was hoping to get the information from the bell housing serial number. And what makes them different? Is the strike longer or the bore wider?
Cargo Master
Joined: Aug 2010
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From: Houston
The gauges are 1937. Note that the belt line stamping will not match later sheet metal. I'm not sure if the cowl to hood lines are the same either.
Edit - Mark got there first while I was typing.
Edit - Mark got there first while I was typing.
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From: Michigan
So what are you saying exactly? I'm just glad it's wider, that way I can mount it on a narrower frame just moving the mounts. Currently it doesn't have any floor boards so no worries there. And belt lines? I'm going to be putting a flatbed on the rear and making a car hauler out of it, and planned on using the fenders from the sinkhole and finding the right year hood