A guy on my drag team snapped his axle last weekend (S/C'd 2003 Cobra). He was very pleased to find out it was his axle because of all the things that can snap it was the cheapest and easiest to fix.
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2005 Mustang GT with 04 Cobra iron block, 300 ci, Kenne Bell 2.6l twin screw, P&P S3 Heads, SS valves, Comp S3 cams, Currie 9+ 9" rear end and DS (coming soon), Hurst shifter, BMR K-member, A-arms, LCAs & UCA, JBA long tubes & mid-pipe, Accel COPs, GT500 fuel pumps, much more... 659 RWHP, 598 Tq @ 12 psi & 5800 RPM
When you install one do you have to remove the entire rear axle from the car?
Your car has two axles, a left and right. So yes, you would have to remove the rears, you have to pull of the differential cover, remove the c-clip and pinion then they slide right out.
Any1 know what the max amount of TQ the stocker's can handle?
All depends..I watched a friend snap a set of stock ones with drag radials..all depends on the tires and launch. Axles are relatively cheap to buy an dinstall..for what it is worth. I just pulled mine last nigh to replace two broken studs..2 hours at most.
that was my next question thump rr....we cant put 31s in say ...a 28 spline carrier. but are the Moser axles stronger somewhere alone the line other than having 31 splines? the guys that break the stock axles must be breakin them out next to the rotors????
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Saleen S/C 3.2 pulley tuned by JDM Engineering, GT500 pumps, CHE goodies on the rear, 4.10's, KOOKS/ high flow catted X pipe with PYPES Violators, Spydershaft, TCI 3500 stall, PA deep tranny pan. Meziere w/p,M&H 325/45/17 DRs.
future mods.... a 3.0 pulley
that was my next question thump rr....we cant put 31s in say ...a 28 spline carrier. but are the Moser axles stronger somewhere alone the line other than having 31 splines? the guys that break the stock axles must be breakin them out next to the rotors????
31 spline axles are more than enough for our cars. Of course anything can break but if I were to upgrade I'd have the axle tubes welded up and the complete rear upgraded at once.
I have a mechanic friend who was running into the nines on 28 splines up until recently.
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05 White GT Premium 5 Sp. IUP, Active Alarm
BMR, C&L, Centerforce, Fidanza, FRPP, GI Joe, JBA, JDM Engineering, LPW, Saleen, SCT, Steeda, SOS
Saleen S/C 3.2 pulley tuned by JDM Engineering, GT500 pumps, CHE goodies on the rear, 4.10's, KOOKS/ high flow catted X pipe with PYPES Violators, Spydershaft, TCI 3500 stall, PA deep tranny pan. Meziere w/p,M&H 325/45/17 DRs.
future mods.... a 3.0 pulley
Well.... the 31s are good and dandy but as with everything else stock they're mass produced with minimal quality checks... I'm sure most AM ones have better materials, balance, etc... also the AM diffs are probably of superior materials, design, and quality...??
Shoot me down if I'm wrong because I don't reall know what I'm talking about... just speculating...
I think I'll be fine unless I put slicks on or start to drag every weekend...?? But I have said that the tranny and rear end hold up as long as they do then I'll upgrade...
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KJ, poorer but happier
Thanks to: Modular Depot Fox Lake Racing Tunable Induction Power House 411 Sun Coast Creations
What are the benefits of installing these? Does it help beef up the rear-end when you have added significant torque and HP to the car?
I broke my rear 31-spline axle on my 05"... I think It is due to too much stress.
If you axle hop over uneven road when you drive at full power too many time & the tire airborne.
I had been driving at a bumpy race track for a 20+ laps...then try to show a friend drag racing start and bug down finally break it.
When it break it also took out the rear brake disk & Caliper.
I spin around in 0.1 Sec...I didn't knowing my wheel flew off until the police carried my wheel in his hand to show me.
I broke my rear 31-spline axle on my 05"... I think It is due to too much stress.
If you axle hop over uneven road when you drive at full power too many time & the tire airborne.
I had been driving at a bumpy race track for a 20+ laps...then try to show a friend drag racing start and bug down finally break it.
When it break it also took out the rear brake disk & Caliper.
I spin around in 0.1 Sec...I didn't knowing my wheel flew off until the police carried my wheel in his hand to show me.
Wow... You really did it up right! I managed to replace mine before they had a chance to break.
Moser 31-Spline Axles? 
stronger Axles? 
