Question about rear axles

stevstum · 01-03-2003, 03:10 PM

I am thinking of rebuilding my rearend in my car. I was going to buy one from the bone yard and rebuild it. So I was wondering what the difference is in 31 and 28 spleen axles are? Are they both compatable with the OEM differentual?

If anyone has rebuilt one before what do I need to do this in my driveway? Pics would would really help.

PKRWUD · 01-03-2003, 04:49 PM

31 spline axles are larger in diameter, and are not interchangeable with 28 spline axles.

Take care,
~Chris

chris91LX · 01-03-2003, 05:34 PM

You'll need a 31 spline differential with the 31 spline axles. Like Chris said, the 31 splines have a larger diameter, it's not just the # of splines. You can get a 31 spline Trac Lok unit out of an F-150 I believe and pick up a set of Moser or Superior axles. You don't need to go with c-clip eliminators unless you have a dedicated drag car that goes 10.99's or faster, my experience has been that they are not very compatible with street cars.

Eric4Nitrous · 01-03-2003, 07:19 PM

yeah chris is right. Unless you got a significant amout of hp or your launching hard theirs no sense in changing your axles. I can hook ya up with a set of strange 40 splines.

bigred90gt · 01-03-2003, 08:16 PM

Quote:

02 GT-For sale-Tube chassied Mopar Eatin, Kevin Price Smokin, wheel bangin, 6 seconds of fury!!

Not to get off topic or anything, but Eric, are you giving up racing??

Caymon

Eric4Nitrous · 01-03-2003, 08:19 PM

not getting out of racing. Just looking out for the future. I wanna go after some outlaw 10.5 races and the car i have now just isn't good for that. I'm thinking of trading for a outlaw 10.5 68 Camaro that's already set up ready to go. Still running some figures in my head deciding what i wanna do. Theirs alot more money in outlaw racing than their is NMRA racing or Pro series. And plus it's fun to see how fast you can go on a small tire!!

bigred90gt · 01-03-2003, 08:35 PM

You had me scared for a minute. I guess its whatever pays the bills. Good luck in the hunt.
Caymon

Eric4Nitrous · 01-03-2003, 08:39 PM

It's not gonna pay the bills. i'm in debt. BAD debt.lol But oh well, it's what i love to do so it's not so bad.

01-03-2003, 03:10 PM	#1
stevstum Registered Member Join Date: Mar 2000 Location: Salem, Or. USA Posts: 233	Question about rear axles I am thinking of rebuilding my rearend in my car. I was going to buy one from the bone yard and rebuild it. So I was wondering what the difference is in 31 and 28 spleen axles are? Are they both compatable with the OEM differentual? If anyone has rebuilt one before what do I need to do this in my driveway? Pics would would really help. __________________ Steve Stumbaugh 89 LX 5.0 5sp, Removed air silencer Mac High Flow Air Filter Motorcraft 8mm wires Autolite platinum plugs Mac O/R h-pipe Flowmaster American Thunder 3:55 gears Accel Super Coil (42,000) 75 mm Mass Air Meter

01-03-2003, 04:49 PM	#2
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	31 spline axles are larger in diameter, and are not interchangeable with 28 spline axles. Take care, ~Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

01-03-2003, 05:34 PM	#3
chris91LX Registered Member Join Date: Oct 1998 Location: Suburban Chicago, Hanover Park Posts: 695	You'll need a 31 spline differential with the 31 spline axles. Like Chris said, the 31 splines have a larger diameter, it's not just the # of splines. You can get a 31 spline Trac Lok unit out of an F-150 I believe and pick up a set of Moser or Superior axles. You don't need to go with c-clip eliminators unless you have a dedicated drag car that goes 10.99's or faster, my experience has been that they are not very compatible with street cars. __________________ My Ford Club http://www.midwestfords.org/ Best time N/A 12.9 @ 107 1.711 60' 125 shot - 12.04 @ 113 1.59 60'

01-03-2003, 07:19 PM	#4
Eric4Nitrous Registered Member Join Date: Jan 2002 Location: Va Posts: 1,122	yeah chris is right. Unless you got a significant amout of hp or your launching hard theirs no sense in changing your axles. I can hook ya up with a set of strange 40 splines. __________________ 68 Camaro Gene Fulton 632ci Two stages of Jug 8.41 164mph Rockingham 1-26-03

01-03-2003, 08:19 PM	#6
Eric4Nitrous Registered Member Join Date: Jan 2002 Location: Va Posts: 1,122	not getting out of racing. Just looking out for the future. I wanna go after some outlaw 10.5 races and the car i have now just isn't good for that. I'm thinking of trading for a outlaw 10.5 68 Camaro that's already set up ready to go. Still running some figures in my head deciding what i wanna do. Theirs alot more money in outlaw racing than their is NMRA racing or Pro series. And plus it's fun to see how fast you can go on a small tire!! __________________ 68 Camaro Gene Fulton 632ci Two stages of Jug 8.41 164mph Rockingham 1-26-03

01-03-2003, 08:35 PM	#7
bigred90gt 2 Stangs in the Stable Join Date: Apr 2002 Location: Baytown, TX Posts: 1,209	You had me scared for a minute. I guess its whatever pays the bills. Good luck in the hunt. Caymon __________________ '90 GT Under construction Best E.T. = Fast @ High Speeds - OK So I Lie. So What!!! 04 F-150 STX 4.2L 5 spd Rice Haters Club Member #128

01-03-2003, 08:39 PM	#8
Eric4Nitrous Registered Member Join Date: Jan 2002 Location: Va Posts: 1,122	It's not gonna pay the bills. i'm in debt. BAD debt.lol But oh well, it's what i love to do so it's not so bad. __________________ 68 Camaro Gene Fulton 632ci Two stages of Jug 8.41 164mph Rockingham 1-26-03

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