High pinion 3rd Questions

[Coloradoyoda]

   I Just came across a high pinion 3rd member with the stock Toyota e-Locker for a great deal.  I think i am going to go ahead and purchase it.  I understand that i will have to notch the axle housing and drill/tab.  My questions are...
1.  Does it make a difference if the current '85 axle i used for my sas has the stock low pinion 3rd?  Can i use the high pinion in this axle housing?
2.  What will i have to do to the high pinion if i am planning on running 27 Spline Longfields?
3.  Also i have heard that the high pinions have a certain amount of weakness to them and some times the lower pinion 3rd's are stronger.  Does anybody have anything to say about this?

I will be running a dual T case in the near future.  So i know just doing that will help my current pinion angle with the low pinion 3rd.  With the high pinion and the duals i would assume that will be about as close as i can come to a perfect pinion angle...

Any info or feedback will be greatly appreciated!!

[CrazyYota]

1.  This is what you need to do to your housing. I know they did to a land cruiser axle but it will involve the same work.  

http://www.sleeoffroad.com/technical/tz_retrofit_lockers.htm

2. No work needed to run your longfields. Just drop them in.

3. hp third is stronger than a low pinion third in the front. They are weak if you run them in the rear axle.  

[Coloradoyoda]

   Cool thanks for your info!!   I live about 20 miles from Slee.  If i have any more questions I will drop in

[CrazyYota]

no problem 

[santa cruz crawler]

The weak problem is that all hp thirds have reverse cut gears ,
They can be ran in the front and rear, but front seems to be better for the drive line angle
I do believe marlin runs front and rear hp , but I don't no what locker he uses!
Arb probably!

[zembalayan]

2. No work needed to run your longfields. Just drop them in.

I am not an e-locker guy, nor am I disputing that you can run some type of Longfields in an e-lockered front of course--many do, but doesn't the inner axle on the actuator side require a longer splined section where it couples with the diff and the actuator?   Whether or not Bobby sells 30/27 e-locker splined axles like this, I do not know, but I would guess like the 30/30 custom axles offered, he would.

[zembalayan]

 

The weak problem is that all hp thirds have reverse cut gears ,
They can be ran in the front and rear, but front seems to be better for the drive line angle
I do believe marlin runs front and rear hp , but I don't no what locker he uses!
Arb probably!

Well, we'll see if Marlin has just invented a durable HP 8" Toy diff for the rear and swapped out his rear V6 ARB to showcase the invention this weekend at the Round Up, but I don't think this has happened, yet.  As far as I know, Marlin currently runs ARBs front and rear with an 8" Toy HP diff up front and an 8" Toy V6 low pinion diff in the rear.  

I read somewhere that he experimented with developing an HP diff that works reliably in the rear, but as of yet, oiling problems have not been overcome, and I recall seeing on an old MC diff page a warning about voiding MC's warranty on HP diffs built by MC that are run in the rear axle.  I could not find the warning when I looked today.  

Let's cross our fingers that one does get built someday because I'd run one in the rear if possible.  TrueHi9s and MegaHi9s are way cool, but I'd like to keep my junk Toyota.