Speedo ??
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Speedo ??
So ive been thinking my speedo might be off quite a bit with 35"tires and 356 gears, is there a gear on the trans that I change? And how do I know which one to get? Do I start by driving next to someone to get my actual speed? Theres all kinds of camera traps out here in arizona and I don't need any tickets lol.
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From: Montpelier, VA
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At the end of the speedo cable is the speedometer's DRIVEN gear.
If nylon, 16-17-18-19-20-21 tooth gears are available from Ford as the same ones have been used since 1960.
If the gear is fiber with a steel shaft, or the gear is cast iron, these can be difficult to find.
These gears have an abbreviated Ford part number on them. You will need to know what your DRIVEN gears tooth count is, before you can calibrate what you need.
If nylon, 16-17-18-19-20-21 tooth gears are available from Ford as the same ones have been used since 1960.
If the gear is fiber with a steel shaft, or the gear is cast iron, these can be difficult to find.
These gears have an abbreviated Ford part number on them. You will need to know what your DRIVEN gears tooth count is, before you can calibrate what you need.
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From what I have been told, small block transmissions usually have the 7 tooth drive gear and big block transmissions have the 6 tooth drive gear. I cannot verify that for sure, but I can say all the small block transmissions I have seen have had the 7 tooth drive gear. I'm sure Bill will chime in with more info.
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From what I have been told, small block transmissions usually have the 7 tooth drive gear and big block transmissions have the 6 tooth drive gear.
(sigh) Whoever told you that wild mule p!ss has no clue. 
I cannot verify that for sure, but I can say all the small block transmissions I have seen have had the 7 tooth drive gear. I'm sure Bill will chime in with more info.
(sigh) Whoever told you that wild mule p!ss has no clue. I cannot verify that for sure, but I can say all the small block transmissions I have seen have had the 7 tooth drive gear. I'm sure Bill will chime in with more info.
Where do people come up with this worthless crap?There were 6, 7 and 8 tooth DRIVE gears (on the output shaft).
What makes the difference is: The rear axle ratio, transmission type, 2WD or 4WD and the tire size.
One F100 could have an 8 tooth DRIVE Gear, 17 tooth DRIVEN gear.
Another nearly identical F100 could have a 7 tooth DRIVE gear, 19T DRIVEN gear.
Because...it all depends on the ratio, tire size, transmission type, 2WD or 4WD.
And if a C6, the DRIVE gear is made as part of the output shaft, so there isn't one.
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Axle code is 07, supposedly had a 352 originally. I really dont want to pull off the tcase to see what drive gear it has, were they color coded from the factory?
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Ford Parts Specialist
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From: Simi Valley, CA
Compare the VIN on the Warranty Plate with the VIN on the registration to see if they match.
People replaced damaged left doors with used doors. 99.9% of the time, they failed to install the original Warranty Plate on the replaced door.
1965: 07 = Ford 9" Rear Axle / 3.25-1 / non Limited Slip / 3,300 lb. Rear Axle Capacity. Axle code 17 was used 1966/72 for this ratio/non L/S.
1966/72: 07 = Ford 9" / 3.00-1 / non Limited Slip / 3,300 lb. Rear Axle Capacity.
Both of these ratio's were used with 2WD.
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I messed up, the trans is a np435 (never believe the p.o.) the gears are 356 or 350's. Sry for the confusion bill, its my first 4x4, and how do i go about checking the vin vs the warrantee plate?
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Compare the VIN on the Warranty Plate to the VIN on the registration to see if they match.
If they do, the AXLE code will correct. If the VIN's don't match, I doubt the AXLE code will be correct because the Warranty Plate isn't correct.
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The VIN on the Warranty Plate does not match the VIN on the registration?
Are you sure?
Your truck is a 1966 F100 4WD. The odds of the original door being replaced with a used door off another 1966 F100 4WD would be astronomical when you consider the rarity factor of these trucks.
Only 5,477 1966 F100 4WD's of all body types were assembled: 145 Cab & Chassis; 839 Flareside Pickups; 4,493 Styleside Pickups.
F11 = F100 4WD
B = 300 1V I-6.
K = Kansas City Assembly Plant.
864316 = 1966, assembled in May 1966.
Are you sure?
Your truck is a 1966 F100 4WD. The odds of the original door being replaced with a used door off another 1966 F100 4WD would be astronomical when you consider the rarity factor of these trucks.
Only 5,477 1966 F100 4WD's of all body types were assembled: 145 Cab & Chassis; 839 Flareside Pickups; 4,493 Styleside Pickups.
F11 = F100 4WD
B = 300 1V I-6.
K = Kansas City Assembly Plant.
864316 = 1966, assembled in May 1966.