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It might be helpful to know what kind, year, make or model rear end we're talking about. But given the nature of the number in question, it's likely a serial number of the axle assembly from the axle manufacturer, whoever that may be. If so, it's totally irrelevent to your truck.
its came in my 51 .i'm restoring it. this number is on the front were the driveshaft hooks up.it is only like a inch long. the back of the rearend is solid no bolts.the motor and trans. came from a 65 mustang. thinking maybe the rearend did too. not for sure. It has a 5 on 5.5 bolt pattern.
I hate to steal your post, but I have the same question. Rear tag says
S614B
373 88 7E01
Its a 97 Explorer and I know what the 373 88 means, wondering if it has a limited slip or not? Appreciate any help you can provide, Thanks
its came in my 51 .i'm restoring it. this number is on the front were the driveshaft hooks up.it is only like a inch long. the back of the rearend is solid no bolts.the motor and trans. came from a 65 mustang. thinking maybe the rearend did too. not for sure. It has a 5 on 5.5 bolt pattern.
1965/66 Mustangs with 260/289 engines came with the Ford 8" rear axle, which looks similar to a 9" rear axle. This rear axle was introduced in 1962, used thru 1980 in passenger cars only.
You do not have an 8" rear axle, because none have a 5.50" bolt circle pattern. All have a 4.50" bolt circle pattern reflecting usage in Mustang/Falcon/Fairlane/Torino/Comet/Granada/Maverick and etc. passenger cars.
The Ford 9" as installed in 1957/79 F100's, some 1980/83 F100's, 1975/86 F150's, 1966/86 Bronco's, 1969/86 Econolines has a 5.50" bolt circle pattern.
Look on the carrier for a cast ID number, post what it is. The Ford AXLE ID tag would be (if it's still there) at 5 o'clock under one of the bolts that holds the carrier to the housing.
Originally Posted by 53 F3
S614B 373 88 7E01
S614B: Ford 8.8" Rear Axle / 3.73-1 / non Limited Slip // 7E01: Assembled May (E) 1, 1997 (7).
If with Limited Slip, the tag would have had an L between 3 & 7, like this: 3L73.
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