Vin help
Super Moderator
Joined: Apr 2004
Posts: 34,527
Likes: 2,830
Welcome to FTE!
F61 = F600 gas, 4x2
D = 330 2V HD FT gas V8 (has the larger diameter crank snout and larger diameter distributor drive like all other FT engines)
C = Ontario Truck Plant
P42135 = 1972 numerical series
212 = 212 inch wheelbase
No color code, note special order
F618 = 1972 only F600 gas 4x2 17,990 lbs GVWR (Conflicts with your listed GVWR, possible typo or part of the special order)
438 = 43 = Black all Vinyl / 8 = 81A Standard Cab (Possible--this info from a '73 F600 decode by Numberdummy)
A = New Process model 435 four speed transmission
64B
64 = Timken model F106 Single Speed Rear Axle / 6.80-1 / 15,000 lbs. Rear Axle Capacity.
B = Ford 5,500lb capacity front axle
17900 = 17,900 lbs GVWR (conflicts with model number GVWR above)
164 3800 = 164 certified net HP @ 3800 RPM
870478
87 = Body company (consistent with previous U-haul decodes, which almost always have single speed axles as well)
0478 = Special Order number.
Let me know if something doesn't line up.
F61 = F600 gas, 4x2
D = 330 2V HD FT gas V8 (has the larger diameter crank snout and larger diameter distributor drive like all other FT engines)
C = Ontario Truck Plant
P42135 = 1972 numerical series
212 = 212 inch wheelbase
No color code, note special order
F618 = 1972 only F600 gas 4x2 17,990 lbs GVWR (Conflicts with your listed GVWR, possible typo or part of the special order)
438 = 43 = Black all Vinyl / 8 = 81A Standard Cab (Possible--this info from a '73 F600 decode by Numberdummy)
A = New Process model 435 four speed transmission
64B
64 = Timken model F106 Single Speed Rear Axle / 6.80-1 / 15,000 lbs. Rear Axle Capacity.
B = Ford 5,500lb capacity front axle
17900 = 17,900 lbs GVWR (conflicts with model number GVWR above)
164 3800 = 164 certified net HP @ 3800 RPM
870478
87 = Body company (consistent with previous U-haul decodes, which almost always have single speed axles as well)
0478 = Special Order number.
Let me know if something doesn't line up.
Thread Starter
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New User
Joined: Feb 2022
Posts: 2
Likes: 0
I appreciate your help sir. Yeah U-Haul has replaced the original engine with a 359 HD. And I wonder around about estimate and if it would be worth the time and fabrication to do this, and that is I have another dump truck it's F600 and same body style but I don't know what year exactly, but it has a different rear end under it. Where the 72 has the single speed rear it also has round axle housing tubes. And I wanted to swap it out for the rear under my parts dump truck because it has the hi/lo **** for the 2 speed rear but the axle housing tubes are square on that one. The U-joints I believe are even the same on the pinion end. Any knowledge or help would be very appreciated and thank you for your time and valuable knowledge. Have a great evening sir.
Super Moderator
Joined: Apr 2004
Posts: 34,527
Likes: 2,830
You could swap those axles but you'll have to bring over all the "round tube" items vs. the "square tube" stuff. Compare the springs, brakets etc, take some pics and see what's different and what has co come over.
If you find the axle code on the two speed truck we can see what you'd be bringing over. Chances are high range is what you have now, with low range being in the 8s. So if higher speed is the goal you should check the ratio before you swap.
The ratio is stamped on the 3 member above the pinion if all else fails.
If you find the axle code on the two speed truck we can see what you'd be bringing over. Chances are high range is what you have now, with low range being in the 8s. So if higher speed is the goal you should check the ratio before you swap.
The ratio is stamped on the 3 member above the pinion if all else fails.
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