Spindle fatigue? - Page 2 - ZR-1 Net Registry Forums

Pete · 04-08-2013

We have 2 choices.
Forged billet stock replacement 27 spline.
&
Al's type set up forged billet 31 spline with new bearing/hubs.

Get in touch with Al he has a package for the 31 spline set up.

Pete

XfireZ51 · 04-08-2013

Quote:

Originally Posted by Pete

We have 2 choices.
Forged billet stock replacement 27 spline.
&
Al's type set up forged billet 31 spline with new bearing/hubs.

Get in touch with Al he has a package for the 31 spline set up.

Pete

Al's shaft is impressive!

Paul Workman · 04-09-2013

Quote:

Originally Posted by Pete

We have 2 choices.
Forged billet stock replacement 27 spline.
&
Al's type set up forged billet 31 spline with new bearing/hubs.

Get in touch with Al he has a package for the 31 spline set up.

Pete

I seem to remember Al's solution was a 33 spline spindle, and it was Bob G that rounded up a 31 spline spindle, NO? I seem to recall that the difference, besides the obvious, was where Al had to do some minor(?) fabrication/fitting for the "33" solution, wheras the 31 that Bob got was more or less "off the shelf"... Or, did I imagine it while under anesthesia?

P.

GOLDCYLON · 04-09-2013

Its been said before however a lot of folks spend a lot of money on all the performance goodies for the motor however neglect the business end where the power goes to. Its not a weakness in the car but all the above out engineers what GM intended performance wise. How much does ALs setup range and what are ALL the options? Or has Pete answered half of that question already?

GOLDCYLON · 04-09-2013

Quote:

Originally Posted by Paul Workman

I seem to remember Al's solution was a 33 spline spindle, and it was Bob G that rounded up a 31 spline spindle, NO? I seem to recall that the difference, besides the obvious, was where Al had to do some minor(?) fabrication/fitting for the "33" solution, wheras the 31 that Bob got was more or less "off the shelf"... Or, did I imagine it while under anesthesia?

P.

Something numming was involved Paul lol

Corbusa · 04-09-2013

This really has my interest.

Paul Workman · 04-09-2013

Quote:

Originally Posted by GOLDCYLON

Its been said before however a lot of folks spend a lot of money on all the performance goodies for the motor however neglect the business end where the power goes to. Its not a weakness in the car but all the above out engineers what GM intended performance wise. How much does ALs setup range and what are ALL the options? Or has Pete answered half of that question already?

IDK... But, I'm intrigued too, with Pete's response. Gonna need a writeup on diss here, methinks!

LancePearson · 04-09-2013

I read somewhere that the number of splines has a bearing on better power transfer and life...the less splines, the less effective. I'm no engineer but if that's true then the 31 spline would be a more effective joint to transfer power better than the 27. If you looked at the failure mode of my 76 side yoke, the spindle, it really looked more like granular steel in cast form than forged or wrought steel but we never found out, just replaced with drop forged on both sides which I thought was important so each side handled equal force and was equal material. They aren't comparable but I'll attach a photo of the failed spindle for example.

ALZR1 · 04-09-2013

Quote:

Originally Posted by LancePearson

I read somewhere that the number of splines has a bearing on better power transfer and life...the less splines, the less effective. I'm no engineer but if that's true then the 31 spline would be a more effective joint to transfer power better than the 27. If you looked at the failure mode of my 76 side yoke, the spindle, it really looked more like granular steel in cast form than forged or wrought steel but we never found out, just replaced with drop forged on both sides which I thought was important so each side handled equal force and was equal material. They aren't comparable but I'll attach a photo of the failed spindle for example.

Hi Lance,I can see that you twisted the splines on your shaft whereas we break them at the shoulder.It looks like if you had more splines you would not have that problem.

AL.

Al.

LancePearson · 04-09-2013

Al, whatever was done on my 76 was done by previous owners which is unknown to me. It isn't raw power at 210 hp but something else in past use habits. My 91 Z if a side yoke spindle breaks would probably be at the shoulder though it isn't one of your 5-600 hp versions, closer to stock. Gold is right...it ain't all engine when you start with these horse powers.

I also assume that broken side yoke in the photo was factory OEM equipment and design factors were substantially less than what any of our Z's would need...at least I hope so.

If they break at the shoulder is that a "joined" area where welding attached the shaft to the yoke type fitting?

I'd love to have access to the suppliers who make these various things in more detail, especially with design specifications.

04-08-2013	#11
Pete Join Date: Dec 2003 Location: Chicagoland,IL Posts: 2,680	Re: Spindle fatigue? We have 2 choices. Forged billet stock replacement 27 spline. & Al's type set up forged billet 31 spline with new bearing/hubs. Get in touch with Al he has a package for the 31 spline set up. Pete __________________ '91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage

04-09-2013	#14
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,153	Re: Spindle fatigue? Its been said before however a lot of folks spend a lot of money on all the performance goodies for the motor however neglect the business end where the power goes to. Its not a weakness in the car but all the above out engineers what GM intended performance wise. How much does ALs setup range and what are ALL the options? Or has Pete answered half of that question already? __________________ GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V

04-09-2013	#16
Corbusa Join Date: Sep 2011 Location: TN Posts: 581	Re: Spindle fatigue? This really has my interest.

04-09-2013	#20
LancePearson Join Date: Dec 2012 Location: Chester, Virginia Posts: 457	Re: Spindle fatigue? Al, whatever was done on my 76 was done by previous owners which is unknown to me. It isn't raw power at 210 hp but something else in past use habits. My 91 Z if a side yoke spindle breaks would probably be at the shoulder though it isn't one of your 5-600 hp versions, closer to stock. Gold is right...it ain't all engine when you start with these horse powers. I also assume that broken side yoke in the photo was factory OEM equipment and design factors were substantially less than what any of our Z's would need...at least I hope so. If they break at the shoulder is that a "joined" area where welding attached the shaft to the yoke type fitting? I'd love to have access to the suppliers who make these various things in more detail, especially with design specifications. __________________ Lance Pearson Chester, Virginia [COLOR=red][I]'76 L48 four speed[/I][/COLOR] [COLOR=red][I]'91 ZR-1 #00682[/I][/COLOR] Net Registry #1461