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 New Tundra rear axle
#847514
11/18/07 03:33 AM
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Joined: Sep 2006
Posts: 90
OP
Getting the Wheeling Fever
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I was looking under the bed of those new Tundra's and the rear axle looks exactly like an eight inch 3rd member and all, except it looked bigger. Are they bigge,r if so how much and how much stronger. Also what would it take to put one a mini.
1985 yota 22RJasper motor w/ cam,webber carb.Marlin histeer & 4"springs, AllPro jonny jointshackles. Bds yj springs upfront. Bilstein 5150's all around. 4.88 yukon gears,detroit locker and truetrac. Fj80 Master cylinder, 33" MTR's
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Re: New Tundra rear axle
[Re: Adam F]
#847516
11/18/07 07:30 AM
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Joined: Aug 2003
Posts: 2,854
Roll Me Over
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The V6 and i-Force 4.7 V8 Tundra models' rear differential uses a 9.5-inch ring gear, and the i-Force 5.7 models step up to a 10.5-inch ring gear -- one of the largest in the segment. All Tundra differentials are made using new machining technology: "face hob" gear cutting for ring and pinion gears yields stronger tooth form and a greater engagement area for increased torque capacity and reduced gear noise. From Auto Channel
89 4Runner
3" BL, M/T locks, 33"bfg mt, bilstein, Kayline, tubebumper, toyotafiberglass panels
TBI: Elocker,3.4 w/ORS,b+b,S2Sstg2cams,arias pistons,P+P intake,TRDs/c,URDpullies+7th,downey headers,MAPECU2,WEGO WB, SupraMAF,walboro255,stg4clutch, EPaOo2 sim
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Re: New Tundra rear axle
[Re: Greg_Canada]
#847517
11/18/07 04:36 PM
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Joined: Apr 2000
Posts: 4,230
Roll Me Over
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There is a write up on them in the latest Petersens 4-Wheel & Off-Road magazine. Seems to be a pretty healthy rear end. They are built by the Hino truck division of Toyota. Not much aftermarket support yet but ARB is working on a locker.
David Fritzsche
1990 Ex-Cab V-6,5-speed, with a few mods
04.5 CTD Dodge 2500 Ram--Tow Rig
Roseville, CA
"Serenity through Sobriety"
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Re: New Tundra rear axle
[Re: OOP'S]
#847518
11/18/07 10:40 PM
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Joined: Sep 2006
Posts: 90
OP
Getting the Wheeling Fever
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So once the after market develops some lockers and gears would it actually be resonable to instal one of these rearends instead of a Dana 44, or a 14 bolt say if you were trying to build a rock crawler with as much toyota parts as possible. or would it just be better and stronger to go with the other two axles.
1985 yota 22RJasper motor w/ cam,webber carb.Marlin histeer & 4"springs, AllPro jonny jointshackles. Bds yj springs upfront. Bilstein 5150's all around. 4.88 yukon gears,detroit locker and truetrac. Fj80 Master cylinder, 33" MTR's
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Re: New Tundra rear axle
[Re: Locked_Solid_Toy]
#847519
11/19/07 02:31 AM
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Joined: Apr 2000
Posts: 4,230
Roll Me Over
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So once the after market develops some lockers and gears would it actually be resonable to instal one of these rearends instead of a Dana 44, or a 14 bolt say if you were trying to build a rock crawler with as much toyota parts as possible. or would it just be better and stronger to go with the other two axles. According to the write up, it is comparable to the 14-bolt and Dana 60/70 Axle size is 1.47, 36 spline count 14-bolt axle size is 1.5; they do not give spline count They do not give axle size for D-60/70 but some have a 35-spline count The R & P is 10.5, which is comparable to the 14-bolt and the D-70. Even though it is low pinion, the pinion is not as low as the 14-bolt or the Ford 9-inch. The brakes are huge, close to a 14-inch rotor. One down side, only 5-lug and it is not a standard size, 5-on-150 MM (5.9 inch) You know that in time there will be aftermarket support for this axle. Right now, it is only offered with two gear ratios, 4.10 and 4.30. I would expect to see other ratios aftermarket and aftermarket housing, like Diamond Axle housings.
David Fritzsche
1990 Ex-Cab V-6,5-speed, with a few mods
04.5 CTD Dodge 2500 Ram--Tow Rig
Roseville, CA
"Serenity through Sobriety"
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![[Linked Image]](http://www.middletownschools.org/uploaded/Our_Schools/High_School/MHS/Main/DECA/RearDiff/5.jpg)
