Axles

SSG Pate · February 2nd, 2012, 07:04 PM

Thinking about 28 spline forged axles, for those of you who have done this is 28 Spline forged suffiecient for a street car. Dont want to upgrade the whole thing if its not needed, as i have other projects taking off to.

cliffyk · February 2nd, 2012, 07:06 PM

"Street car" doesn't tell us much. What mods (current and planned), how much power do you expect to be putting to the ground?

SSG Pate · February 2nd, 2012, 07:11 PM

im putting down 550 RWHP through a 4r70W dont plan on getting much more then 600RWHP by the time its all said an done.

1_nice_03_gt · February 2nd, 2012, 07:27 PM

sub'd; also considering this, i will be running sticky tires at track putting about 265rwph tho sorry to tread jack op

blownstang · February 2nd, 2012, 07:33 PM

Originally Posted by 1_nice_03_gt

sub'd; also considering this, i will be running sticky tires at track putting about 265rwph tho sorry to tread jack op

You need 31 splines. Moser, Strange, Superior are good. I have Moser. One local guy was running Superior's for 10 years and just snapped one at the track this summer. Car was making right around 500rwhp.

cliffyk · February 2nd, 2012, 07:35 PM

Then I would upgrade, or just wait 'til one breaks and then upgrade to a 31-spline setup...

blownstang · February 2nd, 2012, 07:42 PM

Originally Posted by TN GT

Thinking about 28 spline forged axles, for those of you who have done this is 28 Spline forged suffiecient for a street car. Dont want to upgrade the whole thing if its not needed, as i have other projects taking off to.

Auto is a bit more forgiving than a stick, but at your power level I would definitely go 31 spline.

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SSG Pate · February 2nd, 2012, 07:51 PM

Originally Posted by blownstang

Auto is a bit more forgiving than a stick, but at your power level I would definitely go 31 spline.

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8.8 TRACTION-LOK LIMITED SLIP DIFFERENTIAL 31T

Moser 31 Spline Mustang Axles for 8.8in Rear w/ Studs (99-04 GT, Bullitt, & Mach 1) A883153 - Free Shipping!

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Thanks, that traction lock unit was alot cheaper then American muscle.

blownstang · February 2nd, 2012, 08:23 PM

Originally Posted by TN GT

Thanks, that traction lock unit was alot cheaper then American muscle.

Yup. Had American Muscle linked first lol.

mrbigjeep · February 2nd, 2012, 08:44 PM

i'd throw the 28's in and wouldn't worry IMO. auto is way easier on the rear than the 5spd...and you won't ever hook good enough on the street to break an axle anyway.

SSG Pate · February 2nd, 2012, 08:57 PM

Well Right now I am looking for some Mickey thompson tires as well to to on the 17x10.5 Chromw bullitts i just bought. So i might be hooking up after all. i was thinking 315's but not sure if they will fit under the car.

mrbigjeep · February 3rd, 2012, 01:01 AM

they will fit as long as the car isn't slammed on the ground.

Eagle2000GT · February 3rd, 2012, 01:06 AM

I agree with the above posts. You're running too much horsepower for a 28 spline differential. I've read that Explorer differentials with hardened 31 spline axles holds up well. That's what I went with.

bulloch27 · February 3rd, 2012, 02:24 AM

Originally Posted by mrbigjeep

i'd throw the 28's in and wouldn't worry IMO. auto is way easier on the rear than the 5spd...and you won't ever hook good enough on the street to break an axle anyway.

This.

MATT02GT · February 3rd, 2012, 03:15 AM

+1 to needing a 31 spline setup with that power. I'd wait until the stock one breaks, you'd be surprised at the abuse a stock rear can take. Mine took plenty of abuse on the street and strip. But 4-5k rpm launches on slicks finally broke it. I went with a 31spline diff from a newer stang, added the carbon clutches (easy mod) and moser axles for just a few hundred bucks.

February 2nd, 2012, 07:04 PM	#1
SSG Pate Premium Member 00 Mustang GT Vert/88 5.0 Join Date: Sep 2010 Location: Tennessee Posts: 1,766 iTrader: 3 reviews	Axles Thinking about 28 spline forged axles, for those of you who have done this is 28 Spline forged suffiecient for a street car. Dont want to upgrade the whole thing if its not needed, as i have other projects taking off to. __________________ Proud Iraq and Afghanistan War veteran Powered By MMR 4.75L Stroker, Tuned at Kurgan Motorsports

February 2nd, 2012, 07:06 PM	#2
cliffyk Hardcore Enthusiast Join Date: Feb 2007 Location: Saint Augustine, FL Posts: 1,808 iTrader: 1 reviews	"Street car" doesn't tell us much. What mods (current and planned), how much power do you expect to be putting to the ground? __________________ -cliff knight- My Mustang 2003 GT, UPR X, 24lb/h injectors, Magnaflow, 180° stat, PP 70mm TB & plenum, DF Commando, Steeda UDPs, Ralco RZ_flywheel, RAM HDX clutch, WX EFX COPs 3.73s, 262 rwHP/305 lb-ft. Flex-fuel: burns gas and rubber...

February 2nd, 2012, 07:11 PM	#3
SSG Pate Premium Member 00 Mustang GT Vert/88 5.0 Join Date: Sep 2010 Location: Tennessee Posts: 1,766 iTrader: 3 reviews	im putting down 550 RWHP through a 4r70W dont plan on getting much more then 600RWHP by the time its all said an done. __________________ Proud Iraq and Afghanistan War veteran Powered By MMR 4.75L Stroker, Tuned at Kurgan Motorsports

February 2nd, 2012, 07:27 PM	#4
1_nice_03_gt Hardcore Enthusiast 2003 ford mustang gt 13.9 stock Join Date: Sep 2010 Location: bay area Posts: 1,473 iTrader: 1 reviews	sub'd; also considering this, i will be running sticky tires at track putting about 265rwph tho sorry to tread jack op __________________ k&n cai, mangaflows exhaust, summit udp's, 24lb injectors, 78mm bbk plenun, tri-ax s/s, a/c delete,3.73's, aluminum drive shaft, upr upper/lower control arms, solid motor mounts, bbk heades, upr xpipe,bbk cc plates, camber bolts.bama tune

February 2nd, 2012, 07:35 PM	#6
cliffyk Hardcore Enthusiast Join Date: Feb 2007 Location: Saint Augustine, FL Posts: 1,808 iTrader: 1 reviews	Then I would upgrade, or just wait 'til one breaks and then upgrade to a 31-spline setup... __________________ -cliff knight- My Mustang 2003 GT, UPR X, 24lb/h injectors, Magnaflow, 180° stat, PP 70mm TB & plenum, DF Commando, Steeda UDPs, Ralco RZ_flywheel, RAM HDX clutch, WX EFX COPs 3.73s, 262 rwHP/305 lb-ft. Flex-fuel: burns gas and rubber...

February 2nd, 2012, 08:44 PM	#10
mrbigjeep I Post Entirely Way Too Much 04 mustang gt 7.21 @ 98 Join Date: Apr 2008 Location: upstate sc Posts: 5,923 iTrader: 1 reviews	i'd throw the 28's in and wouldn't worry IMO. auto is way easier on the rear than the 5spd...and you won't ever hook good enough on the street to break an axle anyway. __________________ cams + 150 shot

February 2nd, 2012, 08:57 PM	#11
SSG Pate Premium Member 00 Mustang GT Vert/88 5.0 Join Date: Sep 2010 Location: Tennessee Posts: 1,766 iTrader: 3 reviews	Well Right now I am looking for some Mickey thompson tires as well to to on the 17x10.5 Chromw bullitts i just bought. So i might be hooking up after all. i was thinking 315's but not sure if they will fit under the car. __________________ Proud Iraq and Afghanistan War veteran Powered By MMR 4.75L Stroker, Tuned at Kurgan Motorsports

February 3rd, 2012, 01:01 AM	#12
mrbigjeep I Post Entirely Way Too Much 04 mustang gt 7.21 @ 98 Join Date: Apr 2008 Location: upstate sc Posts: 5,923 iTrader: 1 reviews	they will fit as long as the car isn't slammed on the ground. __________________ cams + 150 shot

February 3rd, 2012, 01:06 AM	#13
Eagle2000GT I Post Entirely Way Too Much 2000 Mustang GT 12.73@111.36 Join Date: Aug 2007 Location: Shelbyville, IN Posts: 5,312 iTrader: 1 reviews	I agree with the above posts. You're running too much horsepower for a 28 spline differential. I've read that Explorer differentials with hardened 31 spline axles holds up well. That's what I went with. __________________ ProCharger P-1SC, 9 psi, STD 396/383; Uncorrected 388/375; SAE 383/370 Mods list in Garage.

February 3rd, 2012, 03:15 AM	#15
MATT02GT The Mean Green Join Date: May 2007 Location: Colo. Springs, CO Posts: 4,164 iTrader: 1 reviews	+1 to needing a 31 spline setup with that power. I'd wait until the stock one breaks, you'd be surprised at the abuse a stock rear can take. Mine took plenty of abuse on the street and strip. But 4-5k rpm launches on slicks finally broke it. I went with a 31spline diff from a newer stang, added the carbon clutches (easy mod) and moser axles for just a few hundred bucks. __________________ Its not how fast you drive, but how you drive fast. 2002 Mustang GT... Just The Usual Bolt-Ons Bolt on list in Garage..

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