9" Rear Questions

Mike Pearson · 12-02-2013, 04:16 PM

35 spline would be more than strong enough for that combo. I would look at Strange instead of MW. MW uses a oddball spline angle and is not compatible with any other manufactures parts. Strange makes a great product and supports sportsman racing with their Perfectly Strange program. I have had their axles and spool in my super stocker for 20+ years. Get them with the 5/8 studs too.

kdanner · 12-02-2013, 05:21 PM

FWIW MW will cut either spline angle.

Also the through bolt case can take a load bolt which has a brass tip that is adjusted so when the ring gear deflects it touches the bolt and can't deflect further.

Patric Fox · 12-02-2013, 09:34 PM

I think the difference in cost between a new nodular and aluminum center section is minimal, so I would choose the aluminum. I would also like the 40 spline axles, gun drilled and lightened, aluminum spool , and lightened gears. Are we changing the ratio too?

D. Hake 4459 · 12-02-2013, 10:34 PM

I have some 33 spline moser axles in a 66 Fastback with a 4 speed. When I bought them in 1997 they said they guaranteed them against breakage for 10 years. So far so good. They are lighter than 35 or 40 spline and at your power level I think they will be fine. As for the case, if you want bullet proof my preference would be a strange nodular pro case. An S case is supposed to be rated to 850 horsepower and it is lighter than the pro case. The S case would work, but the pro case is the ultimate in my opinion. Derek

Joe Grippo · 12-02-2013, 11:32 PM

Quote:

Originally Posted by Patric Fox

I think the difference in cost between a new nodular and aluminum center section is minimal, so I would choose the aluminum. I would also like the 40 spline axles, gun drilled and lightened, aluminum spool , and lightened gears. Are we changing the ratio too?

Hey Pat, is this for me or for you?

Joe Grippo · 12-02-2013, 11:34 PM

Thanks for the replies....

I shouldn't have muddied the waters with the 35 vs. 40 spline debate. Probably just going with 35's.

My real question is if an aluminum center section is a good idea for such a heavy car.

Mark Ugrich · 12-03-2013, 12:29 AM

Quote:

Originally Posted by Joe Grippo

Thanks for the replies....

I shouldn't have muddied the waters with the 35 vs. 40 spline debate. Probably just going with 35's.

My real question is if an aluminum center section is a good idea for such a heavy car.

I would think that the aluminum center would sacrifice gear life at some point. A large pinion support and an iron case from either Strange or Mark Williams would be bulletproof.

Patric Fox · 12-03-2013, 10:28 PM

Of course that is a wish list for you that I would love to have too. Just trying to lighten up your car to compensate for the wheelie bars you might need. Can't wait to see it leave the starting line with some new 5.57 gears in it.

12-02-2013, 04:16 PM	#1
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,451 Likes: 615 Liked 1,937 Times in 582 Posts	Re: 9" Rear Questions 35 spline would be more than strong enough for that combo. I would look at Strange instead of MW. MW uses a oddball spline angle and is not compatible with any other manufactures parts. Strange makes a great product and supports sportsman racing with their Perfectly Strange program. I have had their axles and spool in my super stocker for 20+ years. Get them with the 5/8 studs too. __________________ Mike Pearson 2485 SS

12-02-2013, 05:21 PM	#2
kdanner Member Join Date: Nov 2003 Location: Austin, TX Posts: 221 Likes: 50 Liked 38 Times in 17 Posts	Re: 9" Rear Questions FWIW MW will cut either spline angle. Also the through bolt case can take a load bolt which has a brass tip that is adjusted so when the ring gear deflects it touches the bolt and can't deflect further.

12-02-2013, 09:34 PM	#3
Patric Fox Member Join Date: Jul 2007 Location: Pottstown,Pa. Posts: 121 Likes: 24 Liked 11 Times in 8 Posts	Re: 9" Rear Questions I think the difference in cost between a new nodular and aluminum center section is minimal, so I would choose the aluminum. I would also like the 40 spline axles, gun drilled and lightened, aluminum spool , and lightened gears. Are we changing the ratio too?

12-02-2013, 10:34 PM	#4
D. Hake 4459 Junior Member Join Date: Sep 2013 Location: Muskogee, Oklahoma Posts: 83 Likes: 56 Liked 2 Times in 1 Post	Re: 9" Rear Questions I have some 33 spline moser axles in a 66 Fastback with a 4 speed. When I bought them in 1997 they said they guaranteed them against breakage for 10 years. So far so good. They are lighter than 35 or 40 spline and at your power level I think they will be fine. As for the case, if you want bullet proof my preference would be a strange nodular pro case. An S case is supposed to be rated to 850 horsepower and it is lighter than the pro case. The S case would work, but the pro case is the ultimate in my opinion. Derek __________________ Derek Hake 4459 H/SA 69' Roadrunner

12-02-2013, 11:34 PM	#6
Joe Grippo Member Join Date: Apr 2002 Location: Elverson, Pa Posts: 158 Likes: 125 Liked 41 Times in 4 Posts	Re: 9" Rear Questions Thanks for the replies.... I shouldn't have muddied the waters with the 35 vs. 40 spline debate. Probably just going with 35's. My real question is if an aluminum center section is a good idea for such a heavy car. __________________ Time Wasters....http://www.flickr.com/photos/joe_grippo/sets/ http://www.youtube.com/user/JoeGrippo?feature=mhum

12-03-2013, 10:28 PM	#8
Patric Fox Member Join Date: Jul 2007 Location: Pottstown,Pa. Posts: 121 Likes: 24 Liked 11 Times in 8 Posts	Re: 9" Rear Questions Of course that is a wish list for you that I would love to have too. Just trying to lighten up your car to compensate for the wheelie bars you might need. Can't wait to see it leave the starting line with some new 5.57 gears in it.