Author Topic: Supercharged 1UZ Front Axle Shaft Question  (Read 1726 times)

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Travolous

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Supercharged 1UZ Front Axle Shaft Question
« on: Feb 22, 2013, 12:02:35 PM »
I need some help here. I am running a solid axle 4Runner with a M112 mounted ontop a 1UZ. I don't wheel the truck hardly ever, but certainly want to be able to if I want to. It is mainly a just a street driven 4runner. That being said, I will be engaging the 4wheel drive (high) when playing around, to keep the front 33" tires from spinning. I have spared no expense on this build, and don't want to be replacing axles anytime soon. Should I get Chromoly axles shafts and birfields for the times I want to enter 4wheel high and not worry about the HP breaking anything up there? or shoud I get chromoly Axles shafts but keep OEM birfields as to avoid the birfield to wear out due to the softer chromoly, which I won't need because I wouldnt be running a risk of slamming it on rocks. Or would you suggest another combination? I need advice.
« Last Edit: Feb 22, 2013, 01:35:13 PM by Travolous »

H8PVMNT

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Re: Supercharged 1UZ Front Axle Shaft Question
« Reply #1 on: Feb 22, 2013, 03:02:14 PM »
I would think you should be good with just a set of upgraded 27 spline birfs like the standard longfields and the stock axles. If you aren't rock crawling with bigger tires than 33s you should be just fine. I had a healthy 60s V8 in a 1980 4x4 and hacked on it alot with 33s and stock birfs and axles and never had a problem. You might just run your stock birfs for a while and see how they hold up, especially if you are going to run an open diff up front.

Can we see some pics of your truck?
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Re: Supercharged 1UZ Front Axle Shaft Question
« Reply #2 on: Feb 22, 2013, 09:29:45 PM »
Most people don't have any issues with factory axles and birfs, as long as they aren't throttle jockeys.  But with that combo you have, it wouldn't hurt to with chromo or Bobby Longs.  And be done with it.  I plan on going with stock birfs until I can afford Longs later. 
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helipilot77

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Re: Supercharged 1UZ Front Axle Shaft Question
« Reply #3 on: Feb 23, 2013, 08:17:49 AM »
I had a 350 Chevy in a 85 extracab pickup. It was on 38" with stock axles. I never broke anything except for the rear diff. But once I changed it to a v6 style carrier, it was fine. I didn't have lockers and just went in the mud. If you went in the rocks with lockers you would likely break stuff.
-1987 SR5 4runner, 1KZ-te turbo diesel with custom 3" S.S. dump pipe, R-151f transmission, marlin dual ultimate transfer cases w/ triple shifter, SAS, 35's
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pumkin toy

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Re: Supercharged 1UZ Front Axle Shaft Question
« Reply #4 on: Feb 23, 2013, 08:30:36 AM »
obviously upgrading to longs is the best thing he can do from a strength standpoint, i think he already knows that.  What seems to be a more concerning issue here is the fact that he wants to be able to run in 4wd high range from time to time, without wearing out a full chro-mo set of longs.

Travolous- you mentioned maybe running cro-mo inner shafts with stock birfs.  I dont think that would really benefit you in any way.  The inner axle is much stronger than the birf already, so putting a stock birf on a chro-mo inner is not going to gain anything, because probly 95% of the time the stock birf is going to break before the stock inner shaft anyways.
I think you have two options here - run the stock stuff for a while and see if you have any problems with it
                                                 - or upgrade to longfields and only run the vehicle in 4wd high range when you absolutely need it so you dont wear out the longfields prematurely.  Then when you do get the 4runner in low range out in some more difficult rocks and things, you wont have to worry about breakage since you are already upgraded to longs.

Another thing I would do is talk to the folks at Longfield to see if running them in 4wd high range every once and a while is going to damage them, or if its not really a big deal.  I know that Bobby has passed on, but i'm sure there is someone there that can make a recommendation for you and give you more info on how much 4wd high range driving is too much for the longfields.
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Travolous [OP]

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Re: Supercharged 1UZ Front Axle Shaft Question
« Reply #5 on: Feb 25, 2013, 08:26:16 AM »
Thanks for the replys. The truck is still being assembled currently, I just had the axle sandblasted and rebuilt to complete the SAS. The engine is out of the vehicle so that the bodyshop can get to everything. Once the truck is completely painted, the engine will finish being installed. It will probably be August or September before completed.

I think I will take pumpkins advice, call longfield, and see what they say. If they will say something along the lines of 15k miles before the birfields wear out, then I will go that route. I can't imagine how long it would take me to put 15k miles on the vehicle in 4wheel drive.

Travolous [OP]

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Re: Supercharged 1UZ Front Axle Shaft Question
« Reply #6 on: Feb 25, 2013, 01:15:10 PM »
Just called Longfield, and they believe that the 27 spline chromoly setup will be perfect for what I need. It should handle the high horsepower application just fine. Curious, what are the opinions of the longfield vs. the other guys, like the MC set that they sell? Why doesn't anybody ever talk about those lol ?

pumkin toy

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Re: Supercharged 1UZ Front Axle Shaft Question
« Reply #7 on: Feb 25, 2013, 06:49:35 PM »
Just called Longfield, and they believe that the 27 spline chromoly setup will be perfect for what I need. It should handle the high horsepower application just fine. Curious, what are the opinions of the longfield vs. the other guys, like the MC set that they sell? Why doesn't anybody ever talk about those lol ?

great!  i'm glad they were able to help you make a decision.  i think no one ever really talks about the other options because longfield is such a great product.  i know a few people that run the dirty 30's with no problems so far, personally I ran a set of longs.
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Re: Supercharged 1UZ Front Axle Shaft Question
« Reply #8 on: Feb 26, 2013, 07:37:05 AM »
Longfields have the best warranty!!  :thumbs: 

From cruising the forums, alot of people run TG stuff, but trying to get them to warranty it is a different story.  I hear alot of shady reasons of why they won't warranty a lifetime warrantied product. 

If and when I upgrade axles, I plan on giving Marlin a shot first, then if I ever have any troubles I'll go to Longfield.  I don't plan on doing any hardcore stuff.  Mostly just trail riding, old Fire Breaks, and doing some things that a IFS has trouble with.
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Jason E.

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Re: Supercharged 1UZ Front Axle Shaft Question
« Reply #9 on: Feb 13, 2017, 05:50:58 PM »
Am I the only one EXTREMELY curious to see pictures of a supercharged 1UZ in a first gen ???   :eyebrow:
- 1989 Toyota 4runner ( 22re, Dana 44, Sterling 10.25, 4.10, Family Rig in Progress) http://board.marlincrawler.com/index.php?topic=98687.msg1099361#msg1099361

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Re: Supercharged 1UZ Front Axle Shaft Question
« Reply #10 on: Feb 14, 2017, 08:51:27 AM »
Sorry to say, he hasn't been on Marlin for a couple years.  Ever since he started his fab company.  http://www.c4fabrication.com/

Kinda miss him around here, he had some mad skills!
Miss ya Dean (4THEWKN) & Kyle (KYOTA)!!

4THEWKN~9/17/2006  If it wasn't for you, I'd be driving something other than a Toyota!

My build up ~ project Kilchis! http://board.marlincrawler.com/index.php?topic=32961.0
Zak's truck build ~ http://board.marlincrawler.com/index.php?topic=64319.0;topicseen

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Re: Supercharged 1UZ Front Axle Shaft Question
« Reply #11 on: Feb 14, 2017, 09:00:18 AM »
5th gen 4Runner stuff. COOL!
I am 1/5th of Perfect Fit
SqWADoosh [04:19 PM]: *sigh* I guess Chris is right and I just need to wait until I'm in a place where I have a tow rig and trailer before I get this caliber of truck
Mudder [08:28 PM]:   not try to be a jerk, but are you serious bestgen?
Prismo [06:11 PM]:   Done, time to relax or as Bestgen says....FREEDOM!
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