rear axle beef

[Poser]

Originally Posted by Mace

Did you really use
Jack's shafts and Aisin hubs???




30 spline??

Yes they are 30 spline, with ARP studs and Long’ chromo drive gears nonetheless......


This is not on my truck, nor is it in a vehicle that gets flogged.



The owner wanted lockouts on the rear axle because he dollies his Land Cruiser around, and by turning two dials a quarter-turn, the rear axles are isolated, so he does not have to crawl under the truck and remove the rear drive shaft.



Can you think of better products to have accomplished this same thing in a Land Cruiser rear axle?

[Z()LTAN]

think of the asin hub as the fuseable link.

So when torque is too much the hub breaks and not the diff/locker/shafts

[lcwizard]

what you're saying would only work with a full float axle. Unless you want to redesign the entire carrier to accept 40 spline 2" shafts. To take a semi float
LC axle , which has nearly a two inch bearing suface at the outer bearing, and hold a uniform diameter would require redesigning the case for larger side gears and bearings and why stop there. With that potential it would be silly not to increase the pinion diameter 50 percent as well as andding an inch to the ring gear... oh wait, somebody did that....Dana
Since a semi float must carry the rated GVWR the bearing surface needs to be larger than the shaft would be if it were only subjected to twisting loads.

A full float axle is easier to design shafts for ( see CTM ). That design has be used for a long time without problems. A separate drive flange allows minimum waste in production, which is critical when you price 300M.
17-4 stainless can also work well if heat treated. A tensile of 220,000 psi
is attainable and it also has excellent toughness and wear properties.
Keeping tolerances tight between the flange and shaft are essential to
long life. I worked with a SCORE race tem in the late 80's , we built a similar design with heat treated 17-4 stainless. The shaft to flange clearance was an interference fit, so much so that we had to freeze the shaft in acetone/dry ice and heat the flange in an oven to 300 degrees. Then it would press on.
we never needed a c-clip. We ran two seasons, class 8, over 650 horse, never broke a shaft.

Originally Posted by mookie

well that's what i was trying to say- make an axle shaft that is uniform in thickness, from one end to the other- the big ass, beefy size that the stock shafts are on the wheel end- the largest end and then make a locker or spool that would accept an axle shaft that diameter

[Sputnik40]

Originally Posted by Medusa

As Mace correctly noted earlier, if you upgrade the carrier to accept 35-spline shafts and also upgrade the shafts you will then have stronger internals residing in a fundamentally weak housing. At some point you've got to quit polishing the turd

Everybody knows this - but those of us who are polishing are just putting off the inevitable as long as possible due to lack of funds or time. My rear seems to be holding up much better since I stopped stomping on the skinny in stupid situations, or took the ego bruising of taking an easier line where possible on occasion.

The day will come, but it'll be when I sacrifice the women, the flats boat, family, and surf or fish trips - and that's not happening any time soon .

[Medusa]

Ok, I apologize for stating the obvious.

[Mace]

Originally Posted by Poser

Yes they are 30 spline, with ARP studs and Long’ chromo drive gears nonetheless......


This is not on my truck, nor is it in a vehicle that gets flogged.



The owner wanted lockouts on the rear axle because he dollies his Land Cruiser around, and by turning two dials a quarter-turn, the rear axles are isolated, so he does not have to crawl under the truck and remove the rear drive shaft.



Can you think of better products to have accomplished this same thing in a Land Cruiser rear axle?

No, I can't, that is cool

[Mace]

Originally Posted by Sputnik40

Everybody knows this - but those of us who are polishing are just putting off the inevitable as long as possible due to lack of funds or time. My rear seems to be holding up much better since I stopped stomping on the skinny in stupid situations, or took the ego bruising of taking an easier line where possible on occasion.

Wimp

[Sputnik40]

Originally Posted by Medusa

Ok, I apologize for stating the obvious.

Gosh - no need to apologize, that's nowhere near where I was going. Some of us just aren't able to be as focused - krap, I live in South Florida for Pete's sake - I have to blow a couple hundred in diesel to get to the nearest rocks and we're damn lucky to have that secret spot. It'd be different if I lived out West - priorities, priorities.

By the way - your 45 is one of the pics I keep for inspiration on how my 40 might look someday when I go back thru it and clean her up. Maybe by then I'll have real axles.

[Sputnik40]

You're obviously starting to know me - as that's all it takes to get me to try anything . So far results have included multiple breaks, a blown rotator cuffe, 143 stitches from a shark bite, some interesting head injuries, half rolls (including one in a South Florida yard), and dates with some very interesting women. Life is good!

Originally Posted by Mace

Wimp

[Tapage]

Poser .. which tire size can handle the tru Hi9inch .. ? ( asuming you have the stronger axles in the universe )

[Poser]

Originally Posted by Tapage

Poser .. which tire size can handle the tru Hi9inch .. ? ( asuming you have the stronger axles in the universe )

Well, you can get a 40 spline spool for a TruHi9......



I am sure that you could run tires larger than 44’s if you felt the need, and the rear differential and 40 spline axles would be the least of your concerns.

[Tapage]

Originally Posted by Poser

Well, you can get a 40 spline spool for a TruHi9......



I am sure that you could run tires larger than 44’s if you felt the need, and the rear differential and 40 spline axles would be the least of your concerns.

Good to know .. bigger tires, great clearance .. nice deal.