Options for replacing the 3650 input shaft?

LAWNDART02 · January 25th, 2011, 06:54 PM

Is there an option for replacing the stock spline shaft with a stronger one of the same spline count until I save for a new clutch?

Scott2001GT · January 25th, 2011, 07:00 PM

yes u can get a 26 spline

Scott2001GT · January 25th, 2011, 07:02 PM

ProMotion Powertrain FORD/GM Drivetrain Specialist

$379 plus core

MikeJones · January 25th, 2011, 07:45 PM

Fuck yes

Scott2001GT · January 25th, 2011, 08:27 PM

BaznastyDave · January 25th, 2011, 08:40 PM

Or you could get the 10 spline CYRO treated input shaft for $259

MikeJones · January 25th, 2011, 08:46 PM

how much power is that good to?

F8L GT · January 25th, 2011, 08:48 PM

Originally Posted by LAWNDART02

Is there an option for replacing the stock spline shaft with a stronger one of the same spline count until I save for a new clutch?

Originally Posted by Scott2001GT

yes u can get a 26 spline

Scott you Fail lol

Op yes like Baz said you can get a stock one cryo treated. Hell Im still running stock input and not even worried about it

BaznastyDave · January 25th, 2011, 10:05 PM

lol i thought the same thing when he said 26 spline, OP how much power do you have?

Scott2001GT · January 25th, 2011, 11:51 PM

oh well...still going to be weak

MATT02GT · January 26th, 2011, 05:59 AM

I worry this my be my next weak link at the dragstrip. Wonder how many hard launches the stock 10 spline will take with 400+ torque

Black Bullitt · January 26th, 2011, 06:14 AM

C MY 4D snapped his off twice on drag radials, power shifting to 4th gear both times. If you're running drag radials I don't expect it to last forever.

LAWNDART02 · January 26th, 2011, 08:59 AM

Thanks guys-
I've got ~400, but I am running 555R's...
I'm putting together a rear end over the winter, but I'm worried about the rest of it.

I'm crossing over from road rageing so I expect a steep and painful learning curve at the drag stip come spring.
I've got 50K on the stock clutch- easy daily use before the mods, Do you think the clutch will go before the input shaft?
If so, I guess the thing to do would be to replace them both when it does with 26spl.

Willy Mo · January 26th, 2011, 10:54 AM

With 390ftlbs of torque I snapped mine at the track on the 2-3 shift. I was on ET Streets but I twisted it right off. I Sent mine to Liberty's gears and had them make me a 26 spline. (Cheaper then Promotion) It just takes 4-5 weeks.

You could get your factory 10 spline cyro treated, but I would wait until you buy a new clutch and upgrade to a 26 spline, Unless ofcourse you break it before hand.

Willy Mo · January 26th, 2011, 10:56 AM

Originally Posted by Scott2001GT

ProMotion Powertrain FORD/GM Drivetrain Specialist

$379 plus core

FYI there really isnt a "core" they actually use your input shaft, cut the broke piece off and "combo" a 26 spline to you origional shaft.

BaznastyDave · January 26th, 2011, 01:28 PM

Originally Posted by LAWNDART02

Thanks guys-
I've got ~400, but I am running 555R's...
I'm putting together a rear end over the winter, but I'm worried about the rest of it.

I'm crossing over from road rageing so I expect a steep and painful learning curve at the drag stip come spring.
I've got 50K on the stock clutch- easy daily use before the mods, Do you think the clutch will go before the input shaft?
If so, I guess the thing to do would be to replace them both when it does with 26spl.

Your stock clutch is going to really save the rest of your powertrain, the clutch will slip a tad and ease the initial load on the inputshaft, axles, diff, and the rest of your drivetrain. I would keep your stock clutch untill it gets fairly bad.

Willy Mo · January 26th, 2011, 01:56 PM

Originally Posted by BaznastyDave

Your stock clutch is going to really save the rest of your powertrain, the clutch will slip a tad and ease the initial load on the inputshaft, axles, diff, and the rest of your drivetrain. I would keep your stock clutch untill it gets fairly bad.

agreed my centerforce df didnt help any in the slipping department lol.

January 25th, 2011, 06:54 PM	#1
LAWNDART02 Regular 02 GT Join Date: Aug 2008 Location: Detroit Posts: 333 iTrader: 0 reviews	Options for replacing the 3650 input shaft? Is there an option for replacing the stock spline shaft with a stronger one of the same spline count until I save for a new clutch? __________________ 02 2v 5sp- 9lb KB 2.1L I/C, 90MAF, 75mmStack TB, FLSFC's, Magnaflow C/B, NT555R's, MGW shift, Black Sabbath

January 25th, 2011, 07:00 PM	#2
Scott2001GT BYAHHHH! 2001 Mustang GT 13.874 Join Date: Mar 2008 Location: Missouri Posts: 14,793 Blog Entries: 1 iTrader: 3 reviews	yes u can get a 26 spline __________________ Precision Turbo\|TurboSmart\|TeamZ\|Strange\|Hellion\|BBK\|SCT\|Edge Converters\|Fairbanks\|CG Fabrications\|Treadstone

January 25th, 2011, 07:02 PM	#3
Scott2001GT BYAHHHH! 2001 Mustang GT 13.874 Join Date: Mar 2008 Location: Missouri Posts: 14,793 Blog Entries: 1 iTrader: 3 reviews	ProMotion Powertrain FORD/GM Drivetrain Specialist $379 plus core __________________ Precision Turbo\|TurboSmart\|TeamZ\|Strange\|Hellion\|BBK\|SCT\|Edge Converters\|Fairbanks\|CG Fabrications\|Treadstone

January 25th, 2011, 07:45 PM	#4
MikeJones Hardcore Enthusiast 2002 Mustang GT 13.7@103 Join Date: Jun 2009 Location: Stoon, Saskatchewan Posts: 2,913 iTrader: 0 reviews	Fuck yes __________________ Mod6 Bigbore Kooks (parting out 2v motor) N/A 5.3 4v Build http://www.moddedmustangs.com/forums...ing-build.html

January 25th, 2011, 08:27 PM	#5
Scott2001GT BYAHHHH! 2001 Mustang GT 13.874 Join Date: Mar 2008 Location: Missouri Posts: 14,793 Blog Entries: 1 iTrader: 3 reviews	__________________ Precision Turbo\|TurboSmart\|TeamZ\|Strange\|Hellion\|BBK\|SCT\|Edge Converters\|Fairbanks\|CG Fabrications\|Treadstone

January 25th, 2011, 08:40 PM	#6
BaznastyDave MM Fanatic 2004 Mustang Join Date: May 2010 Location: NC Posts: 4,336 iTrader: 4 reviews	Or you could get the 10 spline CYRO treated input shaft for $259 __________________ 305/333 WHP/WTQ with CMS Stage II cams 440/552 WHP/WTQ on Spray 7.86 @ 89.1mph, 1.61 60 foot N/A 7.20 @ 98.8MPH 1.55 60 foot on spray Stock Longblock with Cams

January 25th, 2011, 08:46 PM	#7
MikeJones Hardcore Enthusiast 2002 Mustang GT 13.7@103 Join Date: Jun 2009 Location: Stoon, Saskatchewan Posts: 2,913 iTrader: 0 reviews	how much power is that good to? __________________ Mod6 Bigbore Kooks (parting out 2v motor) N/A 5.3 4v Build http://www.moddedmustangs.com/forums...ing-build.html

January 25th, 2011, 10:05 PM	#9
BaznastyDave MM Fanatic 2004 Mustang Join Date: May 2010 Location: NC Posts: 4,336 iTrader: 4 reviews	lol i thought the same thing when he said 26 spline, OP how much power do you have? __________________ 305/333 WHP/WTQ with CMS Stage II cams 440/552 WHP/WTQ on Spray 7.86 @ 89.1mph, 1.61 60 foot N/A 7.20 @ 98.8MPH 1.55 60 foot on spray Stock Longblock with Cams

January 25th, 2011, 11:51 PM	#10
Scott2001GT BYAHHHH! 2001 Mustang GT 13.874 Join Date: Mar 2008 Location: Missouri Posts: 14,793 Blog Entries: 1 iTrader: 3 reviews	oh well...still going to be weak __________________ Precision Turbo\|TurboSmart\|TeamZ\|Strange\|Hellion\|BBK\|SCT\|Edge Converters\|Fairbanks\|CG Fabrications\|Treadstone

January 26th, 2011, 05:59 AM	#11
MATT02GT The Mean Green Join Date: May 2007 Location: Colo. Springs, CO Posts: 4,164 iTrader: 1 reviews	I worry this my be my next weak link at the dragstrip. Wonder how many hard launches the stock 10 spline will take with 400+ torque __________________ Its not how fast you drive, but how you drive fast. 2002 Mustang GT... Just The Usual Bolt-Ons Bolt on list in Garage..

January 26th, 2011, 08:59 AM	#13
LAWNDART02 Regular 02 GT Join Date: Aug 2008 Location: Detroit Posts: 333 iTrader: 0 reviews	Thanks guys- I've got ~400, but I am running 555R's... I'm putting together a rear end over the winter, but I'm worried about the rest of it. I'm crossing over from road rageing so I expect a steep and painful learning curve at the drag stip come spring. I've got 50K on the stock clutch- easy daily use before the mods, Do you think the clutch will go before the input shaft? If so, I guess the thing to do would be to replace them both when it does with 26spl. __________________ 02 2v 5sp- 9lb KB 2.1L I/C, 90MAF, 75mmStack TB, FLSFC's, Magnaflow C/B, NT555R's, MGW shift, Black Sabbath

January 26th, 2011, 10:54 AM	#14
Willy Mo MM Fanatic 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 4,368 Blog Entries: 1 iTrader: 2 reviews	With 390ftlbs of torque I snapped mine at the track on the 2-3 shift. I was on ET Streets but I twisted it right off. I Sent mine to Liberty's gears and had them make me a 26 spline. (Cheaper then Promotion) It just takes 4-5 weeks. You could get your factory 10 spline cyro treated, but I would wait until you buy a new clutch and upgrade to a 26 spline, Unless ofcourse you break it before hand. __________________

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