axle/ratio decoder, again please?
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Senior User
Joined: Sep 2002
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From: dearborn heights U.S
axle/ratio decoder, again please?
i just bought two axles off a 94 F350 4x4 , i plan to bolt those up on my 81 f250 so can someone tell me what i have
Front axle tag :S121C 5L55 10 2 4B15
Rear axle tag: 3.54 F3TA BCB 610445-4
thanks , also i retrived two 6 inche lift leaf spring for my truck and i m not sure which way to put it... big bushing and one small which s front? and the bolt in center i measured it they re different from one side to another... thanks all again
Front axle tag :S121C 5L55 10 2 4B15
Rear axle tag: 3.54 F3TA BCB 610445-4
thanks , also i retrived two 6 inche lift leaf spring for my truck and i m not sure which way to put it... big bushing and one small which s front? and the bolt in center i measured it they re different from one side to another... thanks all again
Post Fiend
Joined: Jan 2000
Posts: 5,330
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From: Dryden, ON, Canada
You've got the tags mixed up, front is a 3.54 geared D60(Bill of Materials # 610445-4 = 1994 Ford F350 3.54 geared D60) Rear is a 3.55 geared limited slip 10.25, that's a 5 in front of the L, not a 3.
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Senior User
Joined: Sep 2002
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From: dearborn heights U.S
sorry i realized i got it mixed up ... and i found a electrical plug on the rear axle housing i m wondeirng what s that for? locker or some kind of thing? and do u know anything about leaf springs??
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