31 vs C1 vs D1 Axles
#1
03-21-2017, 10:26 AM
31 vs C1 vs D1 Axles
My E99 has axle code of 31, which checks out to be an open 3.73 for an F-250. I am eyeing up two different trucks, one with C1 axles and one with a D1 axles. Both are 3.73 LS, the C1 lists for use in an F-250 and the D1 lists for use in an F-350. What are the differences between all of these axles and can the C1 and/or the D1 carriers be inserted into my 31 axle housings?
Thanks for the help.
Thanks for the help.
#3
03-22-2017, 01:30 PM
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D1: Limited Slip 3.73 F-350
31: 3.73 F-250 / Excursion
Axle code 31 doesn't say Limited Slip...
Got the information here: Identify Your Ford Truck Axle From The Door Sticker : Blue Oval Trucks
31: 3.73 F-250 / Excursion
Axle code 31 doesn't say Limited Slip...
Got the information here: Identify Your Ford Truck Axle From The Door Sticker : Blue Oval Trucks
#4
03-22-2017, 04:35 PM
D1: Limited Slip 3.73 F-350
31: 3.73 F-250 / Excursion
Axle code 31 doesn't say Limited Slip...
Got the information here: Identify Your Ford Truck Axle From The Door Sticker : Blue Oval Trucks
31: 3.73 F-250 / Excursion
Axle code 31 doesn't say Limited Slip...
Got the information here: Identify Your Ford Truck Axle From The Door Sticker : Blue Oval Trucks
#5
03-22-2017, 05:20 PM
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#7
03-22-2017, 07:32 PM
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1999-03 7.3L Ford Powerstroke Axles and Differentials
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#8
05-01-2017, 02:45 PM
OK, I need some detailed information on these rears. My truck is E99 w/3.37 open rears. Donor truck is '01 F-350 w/3.73 LS rears. I recall hearing that axles are one thing that changed mid year in '99 and I'd like to know what it was if anybody knows. Given that this is an E99 will that carrier out of the '01 still fit right in? And would it be easier/better to switch the axles out vs just the carriers? I'd prefer to just swap the carriers and keep the E99's wheels if possible.
@pirate4x4_camo
Thanks for the help.
@pirate4x4_camo
Thanks for the help.
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