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08-14-2011, 03:02 PM | #1 |
Machinator
Join Date: Jul 2008
Location: Leesburg, VA
Posts: 2,294
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Aluminum DS with an 03 IRS Compatable?
Im looking into buying an aluminum drive shaft for my TR3650 Mach with a 2003 Built IRS. My question is will this work? If not what can be done to make it work, and is it worth it?
2003 Cobra OEM drive shaft with both yokes removed
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2004 D.S.G. Mach 1 Mustang I.U.P.(01/22/2004)-04 Cobra Longblock- Posi Ported M122 GT500 Blower - BF 2.93 Upper - 4lb Lower -MGW STS-Bassani cattless X pipe- Borla Stinger Catback-Steeda Bump Steer kit-MM CCs- MM Coilovers 350lb spring- LFP Heat-exchanger- 1inch Shaker Spacer-03 Cobra IRS with FTBR's Full Bushings kit-BF Diff Brace-3:55 gears -T56 Tranzilla- cut 04 coupe rear springs-Viper Remote Start/Alarm system-Ipod Auxilary-SLP LL-Tune coming soon Last edited by 04Mach1Blurr; 03-22-2012 at 02:37 PM. |
08-15-2011, 03:57 PM | #2 |
Can't be bridled
Join Date: Sep 2007
Location: Texas
Posts: 7,005
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Re: Aluminum DS with an 03 IRS Compatable?
Yes it will work. See sig.
Are you using the cobra diff flange right now or the Mach flange? The back flange on the driveshaft has to match the diff flange. Can't mismatch Mach and Cobra flanges. If you use the cobra driveshaft flange and diff flange, you'll need to use the hybrid u joint which I'm assuming you already have in the car. Been awhile since I've done this, so I'm a little rusty myself...
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2004 Mach 1 #6956 5spd w/IUP Eaton swap, longtubes, built 3.73 SRA 452hp/409tq dynojet🏁 |
08-15-2011, 04:06 PM | #3 |
Machinator
Join Date: Jul 2008
Location: Leesburg, VA
Posts: 2,294
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Re: Aluminum DS with an 03 IRS Compatable?
For the IRS swap, I just swapped the differential flange to use my stock driveshaft. No aftermarket or other u joint was used. So with my understanding, the aluminum driveshaft would not work without a different u joint? Thanks for helping my man
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2004 D.S.G. Mach 1 Mustang I.U.P.(01/22/2004)-04 Cobra Longblock- Posi Ported M122 GT500 Blower - BF 2.93 Upper - 4lb Lower -MGW STS-Bassani cattless X pipe- Borla Stinger Catback-Steeda Bump Steer kit-MM CCs- MM Coilovers 350lb spring- LFP Heat-exchanger- 1inch Shaker Spacer-03 Cobra IRS with FTBR's Full Bushings kit-BF Diff Brace-3:55 gears -T56 Tranzilla- cut 04 coupe rear springs-Viper Remote Start/Alarm system-Ipod Auxilary-SLP LL-Tune coming soon |
08-15-2011, 07:04 PM | #4 |
Can't be bridled
Join Date: Sep 2007
Location: Texas
Posts: 7,005
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Re: Aluminum DS with an 03 IRS Compatable?
If you put the diff flange from your SRA on the IRS and re-used your old driveshaft, then I don't see you needing to change anything. Just remember: can't mismatch flanges. Wont fit.
The aluminum FRPP unit (which is made by a company called "Neapco Drivelines) will directly swap with a stock Mach/Gt driveshaft. Since I used the entire IRS assembly, differential flange and all, I had to mate my Frpp driveshaft to it with the cobra driveshaft flange and a hybrid u-joint that would accept the frpp driveshaft for a tr3650 but also adapt to the cobra differential flange. Kind of confusing, but not really. Incase you were wondering, the aluminum driveshaft kicks azz. Id have a reputable driveshaft shop balance it out for you before installing. They're "production" pieces and aren't what you would call "perfect". I didn't know that when I put mine on.
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2004 Mach 1 #6956 5spd w/IUP Eaton swap, longtubes, built 3.73 SRA 452hp/409tq dynojet🏁 |
08-16-2011, 12:07 PM | #5 |
Doug aka "TK"
Join Date: Nov 2007
Location: Goldsboro, NC
Posts: 584
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Re: Aluminum DS with an 03 IRS Compatable?
Looking to do the same mod, just need to call my shop to see how they did the DS/Flang when they installed my '03 IRS.
BY FAR the IRS was the best mod I did to this car!!! LOVE it, just had to get used to the "Cobra Thump" when shifting.
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'03 Black Mach1 w/IUP - 5spd - 306rwhp 312rwtq - SCT Tuner ~ Air diverter ~ 1/2" Intake Spacer ~ CnL 85mm Maf & Trueflow pipe 18" Bullitts 255-40 & 295-35 ~ 10% Tint ~ Painted Calipers ~ Magnaflow Cat-back 3.5" Rolled Tips ~ '03 Cobra IRS ~ H&R/Eibach springs w/Bilstiens ~ FRPP 4.10 gears Mac Pro-Chamber ~ Hurst Short Throw Shifter ~ '01 Cobra Bumper w/Mach Chin spoiler WISH LIST:Full Length SFC's // 4pc March Pulleys // Ported Intake Manifold // Custom grind Cams |
08-21-2011, 11:33 AM | #6 |
Registered User
Join Date: Jul 2008
Location: Parsippany, NJ
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Re: Aluminum DS with an 03 IRS Compatable?
Does anybody know if an 01 cobra driveshaft is the same as an 03? Found one on svtp and its the last part I need for my T56 swap.
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04 Mach 1 - MAC Prochamber, VMP mail order tune - 13.07 @ 106 73 Challenger - 416ci small block, torqueflite, pump gas - 11.21 @ 118 92 Talon AWD - Aluminum rod stroker, 62mm turbo - jack stand racing! |
08-24-2011, 06:24 PM | #7 |
Can't be bridled
Join Date: Sep 2007
Location: Texas
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Re: Aluminum DS with an 03 IRS Compatable?
01 cobras didn't come with t56, so no.
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2004 Mach 1 #6956 5spd w/IUP Eaton swap, longtubes, built 3.73 SRA 452hp/409tq dynojet🏁 |
03-22-2012, 02:37 PM | #8 |
Machinator
Join Date: Jul 2008
Location: Leesburg, VA
Posts: 2,294
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Re: Aluminum DS with an 03 IRS Compatable?
Wanted to re-bump this thread as I have now bought an 03 cobra's aluminum drive shaft. I bought the drive shaft with both yokes removed from it. My new question is, am I able to swap my stock tr3650 and stock drive shaft yokes into the aluminum drive shaft? Will there be a length difference? Will I need to use a new u-joint or spacer for it to work?
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2004 D.S.G. Mach 1 Mustang I.U.P.(01/22/2004)-04 Cobra Longblock- Posi Ported M122 GT500 Blower - BF 2.93 Upper - 4lb Lower -MGW STS-Bassani cattless X pipe- Borla Stinger Catback-Steeda Bump Steer kit-MM CCs- MM Coilovers 350lb spring- LFP Heat-exchanger- 1inch Shaker Spacer-03 Cobra IRS with FTBR's Full Bushings kit-BF Diff Brace-3:55 gears -T56 Tranzilla- cut 04 coupe rear springs-Viper Remote Start/Alarm system-Ipod Auxilary-SLP LL-Tune coming soon Last edited by 04Mach1Blurr; 03-24-2012 at 07:53 PM. |
03-22-2012, 05:05 PM | #9 |
Can't be bridled
Join Date: Sep 2007
Location: Texas
Posts: 7,005
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Re: Aluminum DS with an 03 IRS Compatable?
That drive shaft will be too short. The t-56 is a slightly longer trans, hence the shorter drive shaft....i'm not sure of a way to make it work with a 3650. Maybe someone can enlighten us....
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2004 Mach 1 #6956 5spd w/IUP Eaton swap, longtubes, built 3.73 SRA 452hp/409tq dynojet🏁 |
03-22-2012, 05:22 PM | #10 |
Machinator
Join Date: Jul 2008
Location: Leesburg, VA
Posts: 2,294
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Re: Aluminum DS with an 03 IRS Compatable?
Thank again for the help and post after a year! Thats what I was afraid of... it being to short. when it gets delivered, I will measure both and line it up next to my stock drive shaft and see what the overall difference is. Is the yokes length different or the shaft itself?
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2004 D.S.G. Mach 1 Mustang I.U.P.(01/22/2004)-04 Cobra Longblock- Posi Ported M122 GT500 Blower - BF 2.93 Upper - 4lb Lower -MGW STS-Bassani cattless X pipe- Borla Stinger Catback-Steeda Bump Steer kit-MM CCs- MM Coilovers 350lb spring- LFP Heat-exchanger- 1inch Shaker Spacer-03 Cobra IRS with FTBR's Full Bushings kit-BF Diff Brace-3:55 gears -T56 Tranzilla- cut 04 coupe rear springs-Viper Remote Start/Alarm system-Ipod Auxilary-SLP LL-Tune coming soon |
03-22-2012, 05:32 PM | #11 |
Machinator
Join Date: Jul 2008
Location: Leesburg, VA
Posts: 2,294
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Re: Aluminum DS with an 03 IRS Compatable?
http://www.steeda.com/store/steeda-h...d-mustang.html
I found this drive shaft spacer, but it says its not for IRS equipped vehicles. Wonder if the bolt pattern is different or what?
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2004 D.S.G. Mach 1 Mustang I.U.P.(01/22/2004)-04 Cobra Longblock- Posi Ported M122 GT500 Blower - BF 2.93 Upper - 4lb Lower -MGW STS-Bassani cattless X pipe- Borla Stinger Catback-Steeda Bump Steer kit-MM CCs- MM Coilovers 350lb spring- LFP Heat-exchanger- 1inch Shaker Spacer-03 Cobra IRS with FTBR's Full Bushings kit-BF Diff Brace-3:55 gears -T56 Tranzilla- cut 04 coupe rear springs-Viper Remote Start/Alarm system-Ipod Auxilary-SLP LL-Tune coming soon |
03-22-2012, 06:01 PM | #12 |
Machinator
Join Date: Jul 2008
Location: Leesburg, VA
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Re: Aluminum DS with an 03 IRS Compatable?
I've also read http://forums.corral.net/forums/94-9...riveshaft.html that the OEM cobra aluminum drive shaft is 43.5inches compared to the T45/T3650 is 45.5inches. An overall 2 inch difference which would leave the yoke not close enough to the differential to be deemed safely equipped.
Does the ride height of the car change the geometry of the drive shaft as well? I would think so as the angle of the differential would change.
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2004 D.S.G. Mach 1 Mustang I.U.P.(01/22/2004)-04 Cobra Longblock- Posi Ported M122 GT500 Blower - BF 2.93 Upper - 4lb Lower -MGW STS-Bassani cattless X pipe- Borla Stinger Catback-Steeda Bump Steer kit-MM CCs- MM Coilovers 350lb spring- LFP Heat-exchanger- 1inch Shaker Spacer-03 Cobra IRS with FTBR's Full Bushings kit-BF Diff Brace-3:55 gears -T56 Tranzilla- cut 04 coupe rear springs-Viper Remote Start/Alarm system-Ipod Auxilary-SLP LL-Tune coming soon |
03-23-2012, 06:16 PM | #13 |
Machinator
Join Date: Jul 2008
Location: Leesburg, VA
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Re: Aluminum DS with an 03 IRS Compatable?
Forgot to mention, I only swapped the flange in the differential when i did my IRS swap. So what I'm thinking, is that it is possible to just swap both flanges off my stock drive shaft and put it on the aluminum drive shaft. Think this will work?
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2004 D.S.G. Mach 1 Mustang I.U.P.(01/22/2004)-04 Cobra Longblock- Posi Ported M122 GT500 Blower - BF 2.93 Upper - 4lb Lower -MGW STS-Bassani cattless X pipe- Borla Stinger Catback-Steeda Bump Steer kit-MM CCs- MM Coilovers 350lb spring- LFP Heat-exchanger- 1inch Shaker Spacer-03 Cobra IRS with FTBR's Full Bushings kit-BF Diff Brace-3:55 gears -T56 Tranzilla- cut 04 coupe rear springs-Viper Remote Start/Alarm system-Ipod Auxilary-SLP LL-Tune coming soon |
03-23-2012, 08:53 PM | #14 |
Can't be bridled
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Re: Aluminum DS with an 03 IRS Compatable?
I really don't think switching flanges is going to make up the difference...
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2004 Mach 1 #6956 5spd w/IUP Eaton swap, longtubes, built 3.73 SRA 452hp/409tq dynojet🏁 |
03-23-2012, 11:09 PM | #15 |
Machinator
Join Date: Jul 2008
Location: Leesburg, VA
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Re: Aluminum DS with an 03 IRS Compatable?
lol sorry, didn't mean just the flange that would fix the problem, but swapping both yokes over with a 1330/1350 u-joint and adding the drive shaft spacer to the terminator aluminum drive shaft. I don't see why the spacer wouldn't work with a stock mustang yoke thats for an SRA correct?
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2004 D.S.G. Mach 1 Mustang I.U.P.(01/22/2004)-04 Cobra Longblock- Posi Ported M122 GT500 Blower - BF 2.93 Upper - 4lb Lower -MGW STS-Bassani cattless X pipe- Borla Stinger Catback-Steeda Bump Steer kit-MM CCs- MM Coilovers 350lb spring- LFP Heat-exchanger- 1inch Shaker Spacer-03 Cobra IRS with FTBR's Full Bushings kit-BF Diff Brace-3:55 gears -T56 Tranzilla- cut 04 coupe rear springs-Viper Remote Start/Alarm system-Ipod Auxilary-SLP LL-Tune coming soon |
03-24-2012, 11:46 AM | #16 | ||
Machinator
Join Date: Jul 2008
Location: Leesburg, VA
Posts: 2,294
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Re: Aluminum DS with an 03 IRS Compatable?
From my other thread on SVTP in the Terminator Drive-train section:
Quote:
Quote:
So what I'm looking at now is my oem yoke+ hybrid u joint+ cobra drive shaft+ hybrid u joint+ oem Mach/gt flange+ the 11/16ths drive shaft spacer into the IRS differential. Leaving roughly (.5) inches short of the 00/01 cobra 44.5'' setup for an aluminum drive shaft utilizing the IRS. :read: Is that correct? Are you sure about the 1inch loss of the TR3650 from SRA to IRS?
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2004 D.S.G. Mach 1 Mustang I.U.P.(01/22/2004)-04 Cobra Longblock- Posi Ported M122 GT500 Blower - BF 2.93 Upper - 4lb Lower -MGW STS-Bassani cattless X pipe- Borla Stinger Catback-Steeda Bump Steer kit-MM CCs- MM Coilovers 350lb spring- LFP Heat-exchanger- 1inch Shaker Spacer-03 Cobra IRS with FTBR's Full Bushings kit-BF Diff Brace-3:55 gears -T56 Tranzilla- cut 04 coupe rear springs-Viper Remote Start/Alarm system-Ipod Auxilary-SLP LL-Tune coming soon Last edited by 04Mach1Blurr; 03-24-2012 at 12:12 PM. |
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03-24-2012, 04:44 PM | #17 |
Can't be bridled
Join Date: Sep 2007
Location: Texas
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Re: Aluminum DS with an 03 IRS Compatable?
Give it a shot. Only way to know. More than likely, you are in uncharted waters with this one as that's a very unusual setup.
I'm interested to find out the results..
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2004 Mach 1 #6956 5spd w/IUP Eaton swap, longtubes, built 3.73 SRA 452hp/409tq dynojet🏁 |
03-24-2012, 05:11 PM | #18 |
Machinator
Join Date: Jul 2008
Location: Leesburg, VA
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Re: Aluminum DS with an 03 IRS Compatable?
Thanks I appreciate it, I do want to try my own thing as there aren't many people "fabricating" parts anymore. But what it comes down to is $13.73 more to buy the ready aluminum drive shaft off of American Muscle with the 6% discount code.
I think its absolutely plausible to do what I've researched, but after the research on parts and shipping it may not be totally worth it if I can get a brand new unit for ~$14 more. What I want to look at now is the weight of the AM aluminum drive shaft in full compared to the cobra drive shaft in full plus the 11/16th spacer. I doubt its anything much. But what this does give me is the opportunity to use the cobra drive shaft down the road for a t56 swap if I wanted to do one. Thing is I am graduating college this May and doubt I'll have enough cash ready to do a t56 swap anytime soon. Decisions decisions.
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2004 D.S.G. Mach 1 Mustang I.U.P.(01/22/2004)-04 Cobra Longblock- Posi Ported M122 GT500 Blower - BF 2.93 Upper - 4lb Lower -MGW STS-Bassani cattless X pipe- Borla Stinger Catback-Steeda Bump Steer kit-MM CCs- MM Coilovers 350lb spring- LFP Heat-exchanger- 1inch Shaker Spacer-03 Cobra IRS with FTBR's Full Bushings kit-BF Diff Brace-3:55 gears -T56 Tranzilla- cut 04 coupe rear springs-Viper Remote Start/Alarm system-Ipod Auxilary-SLP LL-Tune coming soon |
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