I've finally made the decision to upgrade to a Moser 9". As much as I don't like the fact that I will have a Ford-based part on my GM, it's obviouse from all the info. I've read that the 9" is WAY stronger/durable than the 12 bolt. I'll just have to bite the bullit.

Anyways, I plan on ordering it from
http://www.spohn.net/product.cfm?productid=1337 .

These are the options I'm going for:

Center Section : 35 spline/Detroit Locker
Case Type : Thru-bolt aluminum
Gear ratio: 4.11
Wheel Studs: Standard Length

Just wondering if any of you have this set-up in your fbody and could tell me what you think of it.

Some of the questions I have are.

- Why is there no price difference between the 31 and 35 spline axles? I'm assuming the 35's are stronger is there some sort of disadvantage to using them over the 31's?

- The housing material. I've heard that aluminum shortens th life of the ring and pinion. Is this true? How much of a weight saving is the aluminum over the nodular Iron?

The only option's for TCS are:
1. NONE
2. 4 channel

My car is a '93. It's a daily driver. Will the 4 channel work for me? (the reason I ask is because on the site is says (96-2002)

Wheel Studs. Is keeping the standard lenth alright? Pro's ? Cons?

Any help and/or additional info any of you can give will be greatly appreciated.
Please respond. I plan on making the order some time in the upcomung month.

My car. http://members.cardomain.com/lt1fun

 

Inless you plan on making crazy amount of power 31 spline is more then enough.I think the 35 spline center section is more expensive then the 31.Also inless you plan on having the 35's gundrill drilled and star flanged they are heavier.I would get the longer wheel studs they are the same price and if you plan on running drag wheel in the future they are needed.

Rob.

 

a lot of times they have periods of free upgrades with splines etc.

i would get longer wheel studs,especially if you plan on racing it.

abs wont work,you have 3 channel abs.

 

I have the ford 9 inch with 35 spline axles. Just stay away from the Detroit locker. I have the Detroit locker, and it was a big mistake. It clinks and clunks to the point, that it is embarassing. Works great at the track, but it is a pain on the street. Also go with the 4.10 gears, if you are thinking of modifiying your motor.

 

That's because the 35 spline is a full locker and 31 spline is a soft locker.

 

Thanks for the input guys. Keep 'em coming.

From the looks of it you'd all reccomend going for the 31 rather than 35 spline axles right? You also suggest I go for the "extended length" wheel studs. But as far as the Detroit Locker - from what I've been told from others, it's the only way to go if I'm concerned about durability. Are they really THAT bad for the street ? The other two options listed are:
Auburn POSI 31spline - $180
Trac-Lock POSI 31 spline - $180

Which of the three should I go with?
(Keep in mind that my long term goal is to eventually run low 10's to possibly high 9's)

Also, none have you had anything to say about the "Case Type". Should I go with the Nodular Iron or Aluminum ?

What about the TCS. My car has 3 channel and the only option is for 4 channel or nothing at all. What do you suggest?

If this was for your car, list the options you would get the 9" with...

 

I have a Moser 9" with 33 splines (2 years old) no abs and a spool.
i needed a cheap strong rear fast.

get the iron case,gears wont last as long with alum.


as i said in my first post,your 3 channel abs wont work with the 4 channel,just get rid of it altogether.

 

Forgive my ignorance on the subject, but how exactly do I "get rid of it altogether"?

Do I have to reprogram the pcm or something? I just got back my pcm from PCMFORLESS and I'd hate to think I have to send it back AGAIN. But I will if I have to. Also, how is the car after taking out the ABS ? Is it still streetable ?
(for a daily driver) Any problem I'll run into after taking it out?
Thanks.

 

The 31 spline soft locker is streetable yet durable.

Rob.

 

unplug it and look at the abs inop light. thats it.

perfectly fine without abs for a daily driver.

 

Hey Racinglt1, how is the spool working on the street? Glad you mentioned not getting the Aluminum center as I have an iron case center {for another project} and I've been regreting not getting aluminum and it was the same price. Bill...

 

spool was fine for MY needs. chews up drag radials if you drive a lot,but i just threw a set of cheap radials on it for daily use. you just have to know the car wont turn quite as well,and be a lil more careful in rain.

 

I agree 100%.

 

What if your car had to be street legal in a state where they would check for that? Is there a way to hook it back up for the inspection and disable it afterwards?

 

ABS is generally not a "street legal" requirement... they still make several lines of cars that only include ABS as an option - my "company car" POS is a 2003 and does not have ABS. It's a feature the manufacturer's decided would improve safety, not a government mandate. We have a fairly extensive brake efficiency and suspension testing here in NJ as part of the biannual inspection, and ABS is not tested as part of that check.