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Post by clayton on Mar 24, 2008 10:09:51 GMT -5
if running 36`s or larger tires what kind of birfield upgrade is best ;D
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Post by rockcrawlintoy on Mar 24, 2008 10:19:07 GMT -5
longfields
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Post by Hoodlum on Mar 24, 2008 10:39:51 GMT -5
If it's a trail only rig... then Dana 60's ;D If it is a DD or street diven then I agree with rockcrawlintoy.
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Post by DeadlyPeace on Mar 24, 2008 10:54:27 GMT -5
For mud and mild wheeling you could probably get away with stock birfs. The most common cause birf carnage is sharp turning while climbing steep tight spots while rock crawling, especially if you have lockers.
If you do upgrade then Longfilds would be the way to go. Or upgrade your whole axle to a Dana 44 or 60.
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Post by clayton on Mar 24, 2008 11:01:04 GMT -5
gotcha, just went to their site, looks badass
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Post by clayton on Mar 24, 2008 11:04:09 GMT -5
is there not a motor question section, maybe i missed it
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Post by Sean on Mar 24, 2008 12:33:22 GMT -5
If you are staying with stock toy power longfields chromo 30 splines will serve you well.
I have broken more axles in mud and snow then i have in rocks. I dont think terrain is the dictating factor in breaking birfs. It comes down to whether you are locked or not.
I would buy the chromo hubs as well to go with the axles. Two weeks after installing my longs i blew a hub clean off playing in the snow. Luckily my longfield survived undamaged.
Dana 60s are great for sure. But thats a whole other ball of wax. A good core will cost you the same as the longfields if you are lucky. Then you will no doubt need to regear it, add a locker and narrow it if you want to be able to run on the street. Being used and 20-30 years old you are going to want to rebuild it with all new bearings and joints, maybe even some CTMs. Suddenly you are three grand into it before you ever sling it under your rig. The upside is with stock toy power you will never in a million years break the thing. And if you roll your truck you can always pull it and put it in the next one.
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Post by clayton on Mar 24, 2008 13:33:48 GMT -5
u would figure some back lash factors with the big tires maybe i guess, i want it to be stout with the stock axles and 5.29`s with 36`s, and i guess 5.71`s and 38`s would be asking for trouble, as far as nailing it off of a dirt road with real good tire spin and suddenly hitting pavement, pow-clank-pow
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Post by Sean on Mar 24, 2008 20:14:52 GMT -5
Shock loading can break just about anything. With longfields your ring and pinion ends up being the weak link. I have only broken those in the rear axle personally.
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Post by clayton on Mar 24, 2008 20:40:04 GMT -5
what gear and tire set up do u run
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Post by fourwd1 on Mar 24, 2008 21:05:45 GMT -5
what gear and tire set up do u run 5.29's, 36" TSLs, ARBs, haven't broken anything. Knowing when to get on it and when not to, priceless. |
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Post by speedy on Mar 24, 2008 23:45:13 GMT -5
5.29's, 35"SSR's, Aussie locked front and rear. 5th gear at 65 is just under 3000 rpm. Loves climbing rocks at full turn. Longfield 30 spline superset with the Chromo Hubs! I did gusset and armor the front axle as well as the front hubs gusset set. Gusseting is cheap and adds alot of piece of mind.
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Post by Sean on Mar 25, 2008 19:09:11 GMT -5
I run 5.29s with 37s. Rear e-locker, fronts welded. The two ring and pinions i have toasted were a stock 4.10 in my original diff and the stock 4.56 in the e-locker.
Sure if you drive like an old man you wont break anything, but whats the fun in that?
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Post by stice316 on May 10, 2008 9:18:23 GMT -5
well i guess I will be able to tell you how they work i have a 20r 4Spd 529 gears welded rear locked front and 38.5x1100 boggers going on a wheelin trip to M.I.O.B.I. in south east Iowa memorial day weekend. still need to get a few things buttoned up but close. thanks for the info on wheelin dead guess never thought about it but makes sense  |
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Post by ToyotaMike on Jul 3, 2008 23:20:29 GMT -5
Dana 44's are not an upgrade even with high end joints. Bobby Long's birfields are by far stronger.
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Post by toorisky on Sept 21, 2008 20:05:44 GMT -5
so true the weak link with a longfield set up is the hub gears and the ring and pinion...fortunatly longfields have chromoly hub gears, and if you ask Bobby Long will take in your new ring and pinions and have them cryo/heat treated so that the entire front end is bullet proof...I ahve done this and talk about a peace of mind...also Bobby only garentee's his axles up to a certain tire size, I thought it was 36 or 38"...check first
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Post by rockcrawlintoy on Sept 21, 2008 20:18:01 GMT -5
Dana 44's are not an upgrade even with high end joints. Bobby Long's birfields are by far stronger. proof please. i know they tested some lame yukon axles but never a quality alloy shaft. i have flogged my dana 44 with long field u joints and superior axles with 39.5 iroks and a dual ultimate set up. i would put my front end up against a 30 splined long toy axle any day |
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Post by fourwd1 on Sept 22, 2008 9:17:54 GMT -5
what gear and tire set up do u run 5.29's, 36" TSLs, ARBs, haven't broken anything. Knowing when to get on it and when not to, priceless. Update - rear R & P trashed  |
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rocktoy
Full Member
Toyota rock crawlin guru
I can break anything!
Posts: 108
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Post by rocktoy on Sept 26, 2008 0:05:58 GMT -5
5.29's, 36" TSLs, ARBs, haven't broken anything. Knowing when to get on it and when not to, priceless. Update - rear R & P trashed Now that sucks man :shootme: FWIW things only hold up for so much. I spit toy parts out like it was going out of style on 37's. Tearing knuckles apart, a few 30 spline birfs and a some R+P damage. I also pushed the rig dam hard. I moved to 60/14b combo and broke a u-joint in the front. I've also beaten the living snot out of the rig though with bigger tires and more weight. |
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Post by stice316 on Apr 26, 2009 8:54:54 GMT -5
forgot about this post. Well 38s 529s and stock birfields? have to say will hold up for quite a while. Im not the average wheeler. I tend to be hard on stuff and usually lead the pack. the only time i have broke the birf is when wheel is turned clear one way or the other. my last time i was in a mud hole and the steering spun out of my hand at the same time the front tires hit the ground. I have made it through this hole several times but eventually every thing will break.  looking at the birf rings for now and something better next tax time |
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