Speedometer Gears
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From: Townsend, MT
Speedometer Gears
I am going to swap in a set of 4.10 axles in my '66 F250 4X4. The ford parts book only lists speedo gears for 4.56. Will any set of speedometer gears for a Dana 24 t-case ('64 - '70) go in any Dana 24 t-case? What year F100 4X4 gears will work?
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What material is the (I assume DRIVEN) speedo gear made from? Nylon, fibre attached to a metal shaft, or cast iron?
How many teeth does it have?
The speedo DRIVEN gear is at the end of the cable, the speedo DRIVE gear is on the output shaft.
You may find that when you replace the DRIVEN gear only, that the speedo will be off, so you may have to change the DRIVE gear.
The DRIVE gear could be steel or nylon.
How many teeth does it have?
The speedo DRIVEN gear is at the end of the cable, the speedo DRIVE gear is on the output shaft.
You may find that when you replace the DRIVEN gear only, that the speedo will be off, so you may have to change the DRIVE gear.
The DRIVE gear could be steel or nylon.
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From: Simi Valley, CA
But, I cannot help you until you tell me what the DRIVEN gear is made of, how many teeth it has.
You cannot install a nylon DRIVEN gear in place of a fibre gear or cast iron gear, cannot install a fibre gear in place of a nylon or cast iron gear and etc.
You have to use the correct type, otherwise, the DRIVEN gear will be chewed up in a NY minute by the DRIVE gear that'll prolly **** the bed in the process.
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From: Townsend, MT
Forget the parts catalog, there is no listing
...but I can figure it out.
But, I cannot help you until you tell me what the DRIVEN gear is made of, how many teeth it has.
You cannot install a nylon DRIVEN gear in place of a fibre gear or cast iron gear, cannot install a fibre gear in place of a nylon or cast iron gear and etc.
You have to use the correct type, otherwise, the DRIVEN gear will be chewed up in a NY minute by the DRIVE gear that'll prolly **** the bed in the process.
...but I can figure it out.But, I cannot help you until you tell me what the DRIVEN gear is made of, how many teeth it has.
You cannot install a nylon DRIVEN gear in place of a fibre gear or cast iron gear, cannot install a fibre gear in place of a nylon or cast iron gear and etc.
You have to use the correct type, otherwise, the DRIVEN gear will be chewed up in a NY minute by the DRIVE gear that'll prolly **** the bed in the process.
What is the listing on page 19 of section 172?
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There aren't any. Only F100 2WD/4WD, F250 2WD are listed / Like I said, I can figure it out, once I know what the original gear is made from, what its tooth count is.
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Logistics Pro
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From: Townsend, MT
This is what you said. Now look on page 19 of section 172...do you see any 1966 F250 4WD's listed w/a 4.10 ratio? Continue on to page 20, see any there?
There aren't any. Only F100 2WD/4WD, F250 2WD are listed / Like I said, I can figure it out, once I know what the original gear is made from, what its tooth count is.
There aren't any. Only F100 2WD/4WD, F250 2WD are listed / Like I said, I can figure it out, once I know what the original gear is made from, what its tooth count is.
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From: Townsend, MT
My driven gear is a 21 tooth steel gear. The drive gear is 7 tooth. I have 235/85 R16 tires which are 32 inches tall (same as 7.50X16). For a '65 F100 (same T-case) with 4.10's the parts book says I need an 18 tooth driven/7 tooth drive. Is this correct?
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Ford Parts Specialist
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From: Simi Valley, CA
You will not be able to get the speedo to be 100% accurate. P-Metric radials have different specs than the bias ply tires all these trucks came with originally.
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From: Townsend, MT
All I want is it to be within 1-2 MPH.
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