9 inch tech

[AggieTJ2007]

I am considering swaping to a 9 inch because of my busted 44 pinion and I had some questions

Definetly going spool. I don't like the detriot that much and I use twin sticks to drag the rear around when needed.

4.56 gears. I like the crawl ratio that ive got with the dual cases

35 spline shafts

now for what brand of gears. I have always heard good things about richmond gears and I saw that mark williams sells them with a 35 spline pinion. That should be alot stronger than the stock 28 spline pinion.

not sure what to do about the center section. nodular iron is what I was thinking.

Oh and where to get good 35 spline shafts

[BroncoJo]

Strange makes some good low pinion cases, I went with the nogdular iron.

I would then sugest moser shafts and spool, probly run about 600-800 dollars for the kit.

I've allways had real good luck with richmond gears.

look in to bracing the axle and a new pinion suport to if your completly rebuilding it.

edit- not for sure how strong your wanting to go but with a spool 40 spline axles are a option too.

[AggieTJ2007]

mark williams has 40 spline shafts, spool, and wheel bearings for 900.

they should hold up pretty well

[sasquatch]

for the love of god don't use stock ****

[sasquatch]

i've got a couple of 31 spline shafts left if you want them

get one of those kickass currie housings and a big bearing housing

[AggieTJ2007]

yeah I am not sure about the housing yet I thought abouta spidertrax hosing but I don't know if they come with the ends, on and a big bearing center section

[BroncoJo]

If your going to run 35 0r 40 spline shafts you will have to have a big bearing housing. I would look into high pinion housing, I wish I would have got one when I built mine.

edit- instead housing i should of said third member.

[sasquatch]

get one of those kickass currie housings and a big bearing housing

**** i meant a currie high pinion nodular case and a big bearing housing.


yeah I am not sure about the housing yet I thought about a spidertrax hosing

if you're getting a new housing, they make ones that bolt into your rear suspension

[BroncoJo]

.

if you're getting a new housing, they make ones that bolt into your rear suspension

Currie does I think they are only like $250. not for sure though

[73bronco]

the currie high pinions aren't 9inches, they use 8.8in gears. The only real high pinion 9in are truehi9's and they're $$$$$$.

Just get a strange/moser case, daytona pinion, richmond gears, full spool and 35spl of your choice.

I'm running a stock case, full spool and yukon 35's and have never had a problem. I dont think I've ever even heard of someone breaking the 35spline axels in a 9in

[BroncoJo]

Currie does I think they are only like $250. not for sure though

never mind a bare housing from curie 300.

[stx4wheeler]

Creighton i would go with 40 spline and never worry about it again. Not many people out there break a dana 44 with 33's. Also like everyone said get the nodular case. Im sure you have seen shaved and trussed nine inches out there here is one a guy on fullsize is building.

http://www.fullsizebronco.com/forum/showthread.php?t=93316

[RCcola55]

mark williams has 40 spline shafts, spool, and wheel bearings for 900.

they should hold up pretty well

There is no need to go with 40 spline shafts. 35 splines is more then enough for your jeep, hell we ran those in mustangs with 500+hp and never had a problem. Chromo 35 splines, big bearing nodular case and a daytona pinion support should be the ticket and you will NEVER have to worry about breaking it.

[AggieTJ2007]

yeah but I can get 40 spline shafts for the same price as 35 spline shafts

[73bronco]

yeah but I can get 40 spline shafts for the same price as 35 spline shafts

True, but then you can only ever get a spool and the bearings will wear out faster than a 35spline. And where the hell are you gonna get a 40spline shaft for the same price as a 35spline? I paid a little less than $400 for shafts, bearings, and new retainers to my door.

[CheapJeep]

There is no need to go with 40 spline shafts. 35 splines is more then enough for your jeep, hell we ran those in mustangs with 500+hp and never had a problem. Chromo 35 splines, big bearing nodular case and a daytona pinion support should be the ticket and you will NEVER have to worry about breaking it.
I agree. I'm not sure how close drag racing and offroad assemblies relate but I've been around alot of Mark Williams, Moser/Strange, and Currie setups and haven't seen/had any problems.

This is just what I've heard but supposedly Yukon's products aren't that great.

[BroncoJo]

I run yukon 31 splines and have yet to have a problem, but they are the cheaper less stong axles.

My buddy had that hot rod ford pick-up with 700 horses on 40s than 47s and never had a problem until he ran out of gear oil and burned up a bearing one day.

he had moser 35 spline

[AggieTJ2007]

True, but then you can only ever get a spool and the bearings will wear out faster than a 35spline. And where the hell are you gonna get a 40spline shaft for the same price as a 35spline? I paid a little less than $400 for shafts, bearings, and new retainers to my door.

All I want is a spool, and this jeep will not be driven very much on the street.

Oh mark williams has them listed at the same price

[mudtoy67]

Yukon's are a "budget" gear. Nothing wrong with them. They are good for the price.

I've put a lot of Richmonds in 9s and I like them. They always seem to set up easily. Haven't had any come back that I heard of, and most of them were in stock-cars.

[robertf03]

yeah I am not sure about the housing yet I thought abouta spidertrax hosing but I don't know if they come with the ends, on and a big bearing center section


http://tamor.org/forums/attachment.php?attachmentid=10069&stc=1

[AggieTJ2007]

hmm, that could be nice.

Also does anybody know anything about these 35 spline pinions
http://www.markwilliams.com/detail.aspx?ID=1466

These gears look pretty sweet, bearings would probably wear out quicker but it would only be uses off-road

here are the 40 spline shafts
http://www.markwilliams.com/detail.aspx?ID=1724


BTW i want to build an axle that i will never have to upgrade and hopefully never break. i don't mind replacing bearings every now and then but with as little as I drive the jeep on the street I don't see it being a problem

[Shaggy]

true high nine... it would be the shiznit

[AggieTJ2007]

yeah, but a true hi nine is expensive

[Shaggy]

so

[AggieTJ2007]

yeah, but I just looked it up and it is about the same as what I was wanting to do, and I can still go 40 spline

[AggieTJ2007]

http://store.summitracing.com/partdetail.asp?autofilter=1&part=CEE%2D9100&N=700+4294925134+4294839047+4294845392+115&autoview=sku

How about that housing, lighter and stronger than a spiertrax housing

[robertf03]

just get a truck housing

I don't think there are steel 3rd members that you can do 40 spline on. You'd be stuck with aluminum. The 3.250 3rd members are pretty cheap.

[AggieTJ2007]

you can do 40 spline on any 3.250 thrd member.

[redcagepatrol]

true high nine... it would be the shiznit
seen about three of them break in comps - and they complained ALOT about the quality of the gears. Basically - it took about three sets of gears before they got an acceptable runout. This was coming from Scott at Rockstomper...

[redcagepatrol]

get a built third member from someone with the bigger pinion. I would run 35 spline shafts because you loose strength in the carrier (spool or detroit) with the 40 spline stuff.
I have only seen a few 35 spline chrmo shafts break, but many more third members break. Hell - Troy has broken three of those things with really good parts! US gear, nodular AL case with thru bolts etc... Basically - you will break the R&P or case before you break the shaft.

[AggieTJ2007]

is he running a 35 spline pinon. Good to know about hi9.

I think cody said something about loosing strenth in the detriot w/ 40 spline.

[redcagepatrol]

he has the 28 spline pinion - and he regrets going with that gear ratio because the 35 spline was not availiable in it. He broke two pinions already - not because of the pinion size but becasue the suspension design allowed too much axle wrap. On top of that, we has stripped two from ring gears.

[tigweld]

I have looked extensively into any 40 spline axle setups. U will find that most of the top axle builders usually do not recommend 40 spline unless u are doing a floater set up as the axle bearings for a semi float 40 spline are not reliable due to the axle diameter being increased so much without increasing the housing ends size.

[agjohn02]

dont you have to use ball bearings?

[sasquatch]

I don't doubt you would break a stock 9 inch, but do you really think you beat on stuff hard enough to need 40 spline shafts? i would get a upgrade 35 spline pinion, daytona pinion support, nod case with whatever gears, full spool, and 35 spline alloy shafts. that'll still leave you plenty of bearing and case strength

[Shaggy]

do a full float kit... they are baddood

[tigweld]

http://www.kartek.com/prod-windows/race/brakes/prm-654lsnhd.jpg

[AggieTJ2007]

that looks sweet, i thisnk I am going to go w/ 35 spline chromo stuff. not sure who from but somebody, any ideas

[redcagepatrol]

new news on the True HI9
http://www.pirate4x4.com/forum/showthread.php?t=542166

[73bronco]

completeoffroad had pretty good prices, but i think they only have yukon and moser

[colman]

http://www.texas4x4.org/showthread.php?t=15742
a pair of 9's

[william_ace]

Big Money!

[JeepPhisherman]

Guy selling seems like a doosh too.

[colman]

still probably cheaper than ordering them yourself new, just a thought

[AggieTJ2007]

yeah but I don't want currie high pinon they use 8.8 gears, ruins the reason to buy a 9