9 inch tech

[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

[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/partde...5&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.