Thoughts on 37s

My stock rear end ate $2800 in parts over ten years. A couple of ring gears, bent axle housing, and bent axle shaft...on 33's. On 37's I went through one third member, one axle, and when it seized up at speed it took the driveline so I guess you could add that in there. Those were all caused by the same event, as I hit the e-locker button between shifts under full throttle and I didn't wait for a solid lock light... The locker hung up half way and broke a side gear, which ate up everything else. My fault. In my experience, a 4.88 ECGS diff on 37's is much stronger than factory 3.73's on 33" tires.

You can keep ABS with an aftermarket axle, and the E-brake, but since I never use those things I didn't spend money on them.

 

Thats the 10.5 but I would be running 4.88s anyways. The 9.5 has every ratio out there available. I always hear about the TRD off road diff exploding...

you did that on purpose??

 

How is a 4.88 ECGS diff on 37's just as strong as a factory on 3:73's? Material their made of?

 

Metal

 

You just go full bore, death metal, thrasher mode when you get in that truck don't you? I wanna see some gopro video from some of your rides. That's gotta be in intense

 

Here is me breaking two rims at 80mph. This was the reason I moved to 37's and double beadlocks. (44seconds in)

http://youtu.be/2SgAzs9-hLk?list=UU2StmywuCt-xTUCVQ0N1GRA

 

Hahaha wow. How?

 

Hit a rock. That one year I went through 8 or 9 KM2's with catastrophic failures (sidewall mostly) and a few wheels, not to mention a bunch of broken wheel studs. Since going to recentered HMMWV wheels and military tires I haven't had a single flat! Also went with ARP studs and haven't broken one yet.

 

Advice from homer ^

 

Something with the factory ring and pinions is fucked up... I destroyed one set in my 2005 and had it replaced with all factory toyota stuff under warranty and destroyed that set too... On factory tires... I went through 2 of them in under a year and that was before I ever started wheeling...

With my ECGS 4.88's and 33's I recently took 3 teeth off the ring gear after running it for about 2 years. Got it replaced under warranty as well.

 

ECGS has a kickass no questions asked warranty.

 

Why are they breaking or going out? Failing or driving/ racing hard on it?

EDIT: Should I comsider keepingnanspare third since its my daily driver?? At least for the rear..

 

You did that on 37s?? They have a thing on their website about anything bigger than 35 voids warranty...

 

The first one was when I had had the Tacoma for only a few months and had less than 13K miles on it. I was stopped on a paved road and put the throttle to the floor and it went crunchy... The 2nd one started howling (I suspect poor install on the crush washer) and when I pulled it I found some chips in the ring gear... I had just been regularly daily driving it when it started howling. The 3rd one I had just had lunch with a friend (IdahoLandHo) and we were headed to go wheel and it started knocking about a mile before we left the pavement Pulled the diff and 3 teeth were missing on the ring gear. I assume I shock loaded it at some point but it was the first time I had gone wheeling in 3 months... I literally drove it 250+ miles just to meet him to go wheeling... But I also drove it those 250 miles back home at 55 mph with it knocking like a son of a bitch and it got me home.

 

If that is the one he killed on Pritchett I think he was still on 35's then.

 

I've destroyed a set of 4.56 pinion gear on 35s from east coast I've also destroyed another pinion gear on 37s all happened on the road not offroad . Both from east coast and now my air locker is leaking in the diff somewhere so I gotta ship out the diff again

 

Also that is on the 8.4 not the 8"

 

That head banging on a wall looks a little extreme but you had some ruff experiences... man oh man, makes me think of not returning my stock diff amd either get gears in it or leave it stock as a spare from all the repotts im hearing

 

Dirtymike said it was on his 8.4" whats everyone else running that is breaking them?

 

According to the guys at east coast I'm the only one they have had break an 8.4 or that they remember breaking one