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The axle code on my 77 F100 vin plate is A9H. I don't find it, or any variation listed in the Service Manual ID Codes section. Could anyone advise it's meaning? Thanks.
It is clearly 'A9H' under 'Axle Code' on the right side of the VIN Plate. On the rear axle, attached to the left side (looking forward) differential housing cover there is a metal tag stamped with the following:
3 07 07TA-B3F
751 400-1 MEX
If anybody can shed some light on what axle I have, I'd appreciate it. I hope it's not an illegal
On a 4x4, I thought the 2 digit number was the rear diff,and the letter code was the front diff
According to my 77 service manual:
"A letter and a number, or two numbers under AXLE identify the rear axle ratio (when required, a letter is also stamped behind the rear axle code to identify the front axle capacity)."
Using this explanation, my axle code 'A9H', the 'H' would ID the front axle capacity and the 'A9' should identify the rear axle ratio. But I don't find the 'A9' ID code listed with all the others in the service manual.