LS1Silverado05

iTrader: (41)

Just curious who if anyone builds their own 9"? It would seem that you could save a few bucks by purchasing the center section, and supplying your own 3rd member/axles?...Maybe Im wrong. Please give me your thoughts?..

Jawsgear

iTrader: (2)

If you have the resources you can build your own 3rd member. Just depends on what your level of expertise is. I would suggest at least buying a housing and axle package though as you cannot beat the price to have it prefabbed to fit in your car already. In addition you will not have the headache.

Jeff

n2ocamaro

This is exactly what I am doing. Ordering a housing and axel package this week and adding a rebuilt ford center section with a spool and 4.11s.

Taubr Unit

iTrader: (32)

I played my cards right and ill get my fab9 from Midwest Chassie and what not installed in my car for under $1000 I scored a center already done for $25, nodular of course but it will work for now till i build a complete aluminum one. And some more tricks up my sleeve and ill be rollin with my fab9 soon!

LS1Silverado05

iTrader: (41)

I like the idea of buying a housing & axle kit, and then sourcing my center section. A couple quick questions...are ALL the 9" centers the same (with exception of splines). That is to say, I have a friend who races dirt track and has a bunch of 9" centers, and will hook me up. Am I correct in saying that if I buy the housing kit, all I will need is the completed center section?...What does everyone like to run for splines?

ssvert99

iTrader: (26)

31 spline is the most common. 28 is an option, but that is the same as a stock f-body rearend. 35 spline for Detroit lockers or spools.

most circle track rearends you will find are stock center sections with stock diff units and a mini-spool that transfers all the power thru the pinion pin. 28 or 31 spline.

Jawsgear

iTrader: (2)

3rd members will definately vary depending on what they are assembled with. You can get a stock diff, Nodular , Aluminum and then you have tons of gear ratio choices and positraction/locker options. Make sure you get what you are looking for.

Jeff

LS1Silverado05

iTrader: (41)

Jeff I was looking at your third members. What type of power do the stock centers hold? I saw that the nodular is rated at 650hp. What is the main difference? Where do stock ones fail?..

COOKIE MONSTER

iTrader: (5)

MIDWEST gave me a deal that nobody else could beat including the sponsers in this thread. Aside from Midwest that is... 8)

LivingCanvas

iTrader: (4)

This is funny cause I was just about to start my own thread about sourcing my own center, and buying the fabbed up housing and axle.....

If you dont mind me getting in on this thread, I want to add...

I figure for a 400-500rwhp car, Im gonna want a nodular 31 spline center....right? How much should I be paying for one of these used?

LS1Silverado05

iTrader: (41)

Sure jump right in. Im just trying to see the best way to do it. Sure seems there is some $ to be saved by sourcing a center. But maybe I am missing something. I see that the nodular centers are rated at 650HP..but what about stock centers?

LivingCanvas

iTrader: (4)

I would also like to know this. ^^^^ Can a stock center with a trutrac be a good rear end?

Im looking for a rear that will hold up my current power plus a 150shot later, still being a DD. I also want to be able to side step the clutch at 5-6k. Will a stock center take that?

And im with you LS1 silverado, I think we should be able to get into a 9in for 1500 bucks if we set up our own center section

LS1Silverado05

iTrader: (41)

My thoughts exactly.

ssvert99

iTrader: (26)

here... i just copied this out of a thread from a few days ago... this is the real deal...



Quote:
Originally Posted by Exotic Performance Plus View Post
I agree, I've seen them leave a pile on the track. Bob :Quote

and chances are, if you break a case, the only thing you *may* salvage out of the center section is the diff unit. even the driveshaft will be junk. so figure in the cost of the cheaper gear. you saved about 300-500 depending on what and where you buy it. the driveshaft is gonna cost 300 minimum. now you need to repair and upgrade the center section. thats gonna cost 800-900 to buy parts and have it setup using your posi unit. now, youve spent 1200 to repair what you spent 800 on originally to save only 300-500. you now have a 2000.00 center section that still has a posi unit in it. i can sell the baddest aluminum center section on the planet and a driveshaft with it for 2000.

now what do yo think of that stock center section?

i know not everybody has 2500-3500 to spend on a good rearend from the start. but the point i'm making is don't go out and buy a Moser 9 and stuff it with a gear setup you think is bullet proof just because it is a 9 inch ford. they break just like your 10 bolt.
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LS1Silverado05

iTrader: (41)

Heard ya. Thoughts of a stock center are gone like the wind.

linegtdt52

iTrader: (12)

Well let's see... I can get the gear paint myself, I have a dial indicator, have feeler guages, know how to measure backlash and freeplay and runout... I can buy a nodular housing, gears and posi with bearings and everything for about 600 when everyone else wants to charge me 875 or even 950. Not to mention even SOME of the vendors from what I heard sometimes can't even get the gears to mesh right. I'll take my chances with my knowledge and build up my third member myself and I'll see if I can do a write-up in the process. Guys, I will tell you up front that eventhough you follow the write-up, if you arent trained or dont have a skilled person around you be careful with this install. This is probably the most attenton to detail you'll everneed to make on the portion of the vehicle.my rear end willbe built bullet proof for 1500

LS1Silverado05

iTrader: (41)

Im having my local guy set up the rear. I wont chance it on this rig. I'll practice on some other junk before I set up gears in my baby

On a side note....$600 nodular with posi & bearings?.....Maybe with a spool....that or you have the hook up of the century!

SS SLP2

iTrader: (8)

"$600 nodular with posi & bearings?....."
any one have one for sale ?
PM thanks, Johnny

LS1Silverado05

iTrader: (41)

It cant be done, unless you can find a $200 posi. The cheapest nodular housing I know of is the Strange S-Case and it goes for $230 Gears $170 Bearings $70ish, Thats $470...you have $130 left to buy a "posi" with. Can hardly get a spool with that. Im calling BS on the $600 center with Nodular case & Posi

ssvert99

iTrader: (26)

... unless he somehow located a factory ford "N" case with a traction lock in it. it's possible, but not likely. those were rare parts and most of the circle track guys snagged those up over the years. i'm calling BS, too. 600.00 is well under wholesale cost to dealers for those parts.