Help! What to do?

Jason924R

New Member
Joined
Aug 1, 2005
Location
Boone, NC
Ok, so my gears grenaded in my rear diff. Carnage pics coming later.

Am I fucked on the locker and gears? Am I going to have to pay for all of the fix myself? Gears are about a year maybe a year and 2 months old. Locker is maybe 3 months. CRSU installed both gears and locker.

Thanks
 
Your going to have to take it apart and see what grenaded. I think you answered your own question on the gears, if they grenaded thats it they are done with. See what was at fault and if/or CRSU warranties their work.
 
Yeah I'm not saying Andy did anything wrong at all. I was just trying to figure out what choices I should make.....different brand of gears...etc.

I was expecting something new to happen soon. Right when one thing gets fixed another starts going out. It could be my driveline angle and tire size....the driveling angle will soon be fixed though.

Let me get these pictures up.
 
Rear diff

d1.JPG

d2.JPG

d3.JPG



Thats the three spots on the rear of the pumpkin. :(

also noticed two nails in my passenger side rear tire. :handed:
 
What exactly are you expecting to have happen at this point? Have you called CRSU yet ?

Maybe some facts first...... how many miles since the install.... how many wheeling trips? What kinds of locker ? were all your parts new?

you mention drive line angle... and tire sizes.... what are they?
 
Well, so Jason had his 4runner towed over to our place so we could take a look at it. The tow truck driver backed it off the roll back and it made a loud bang. After that it would not start. Soooooooo......it got pushed inside so we could take a look when we got a chance. It looks like he lost the ring and pinion from the hole in the housing. Before we got a chance to look at it, we got a call from AAA that he was having it picked up. SO we have no idea what happened.

Jason did call and say he had no money to fix it, before we even got a chance to look at it, not that we were charging him a dime till we knew what was going on. It was a Yukon gearset and was installed over a year and a half ago, with multiple offroad trips involved) so I seriously doubt it was a problem with the setup. The pinion was still tight so I am betting he snapped a couple teeth off the pinion or the ring gear.

I was going to call him when I get back to see if he wanted us to actually take a look at it and see what is going on. He got anxious to get it back without knowing the problem cause I think he knows he just plain broke something so it is gonna cost him.


Andy
 
yager said:
What exactly are you expecting to have happen at this point? Have you called CRSU yet ?

Maybe some facts first...... how many miles since the install.... how many wheeling trips? What kinds of locker ? were all your parts new?

you mention drive line angle... and tire sizes.... what are they?
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Tranny shop was driving it and heard a load bang. Has a hole in the rear housing......Yup, see my post....

over a year and a half on the install(lockerwas installed later, approx 8 months but everything in the gears looked perfect at that time) including multiple wheeling trips, detroit, yup - gears were brand new and so was the locker.
 
Yea, I called and I think someone told me I was going to be charged for pulling the diff cover and whatnot...at that point it was obvious I should pick it up...pretty sure you guys were going to tell me what I already knew and I figured I'd save you the space and time.

I guess my shitstreak continues with this beast.
 
If we pull it apart (pull the shafts and remove the 3rd) and it have nothing to do with any work done by our shop, you better bet I am going to charge him for it. If it had had something to do with us, obviously, then there would have been no charge. He doesn't have the $$ to take the chance I guess, and with over a year and a half on the setup, it is a pretty good bet that the gear install is not the problem.

Jason,if you want me to take a look at it when I get back let me know. I will be happy to, but like Jeff told you, we cannot tell you what is wrong until we pull the 3rd and if it is a R&P failure we will have to figure out how to fix it(and quote it) at that point. I do have a 4.10 3rd to get you by temporarily if it was just a R&P failure but you will have a little bit of labor and a little bit of material cost involved. None of this is new to what you have been told, just figured I would post it publically.


Andy
 
I'm not bashing anyone. Just explaining my situation as you are. I appreciate the offer for the 4:10, might hit you up for that.

Thanks for telling me Jeff's name. Never could remember it.
 
zubz said:
If we pull it apart (pull the shafts and remove the 3rd) and it have nothing to do with any work done by our shop, you better bet I am going to charge him for it. If it had had something to do with us, obviously, then there would have been no charge. He doesn't have the $$ to take the chance I guess, and with over a year and a half on the setup, it is a pretty good bet that the gear install is not the problem.
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As it should be. :beer:

About the only thing I've ever seen take that long to rear its ugly head was a ring bolt coming out.
 
Travs97 said:
what does the tranny shop say.they were driving it may they should fix it.but they do screw everything else up,so maybe not
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Eeeeh, I'm on the fence about that one.. If it's something directly related to what they touched, then maybe.. (I.e. t-case, driveshafts, etc)

But, let's say Jason never checked his diff fluid level, and was running it low. It the tranny shop required to do a 30-point inspection before they drive the vehicle anywhere?
 
Yea, I asked that on YotaTech.com. I dont think I've come up with a way to prove beyond reasonable doubt that it was DIRECTLY their fault. The diff fluid being low could definately be possible, but I change it every so often and there are no leaks.
 
The way I see it, wether the tranny shop was test driving or dogging, the diff was probably going to break anyway sooner or later. And you can point fingers but remember there are 3 pointing back at you, too. Probably the best way to fix the problem would be to upgrade to an axle that will take some abuse.
 
So my stock Toyota 92 rear diff should be replaced? My front axle is an 84' Toyota pickup front axle with the 27 spline Bobby Long Chromoly super set. I' need to check the fluid level tomorrow. I have the day off so I'll have a chance to get some batteries and some pics taken.

til Tuesday....
 
what was the rear third member out of? Just wondering if you had the small ring gear 4.88 version that came in auto V6 runners/pickups
 
There is no reason for properly setup 5:29's not to last. Crush sleeve eliminator, red locktite on the ring bolts, properly torqued and set to the tight side of the spec. Break it in right and change the oil after 4~500 miles and it should last.

I would think about a e locker or a spool for the street tho', I'm not convinced the lockers dont beat the crap out of the pinion bearings loading and unloading. The majority of pinion bearing failures I've seen were crush sleeve and or lockers. I've had to go into mine once already and reset the preload/replace the crush sleeve. (professionally setup 4:88 with a detroit with issues) :lol:
 
What size tires are you running? The Yota is what an 8" ring gear at the most. It should hold up well to a 33, but 35 or bigger I'd look at up grading for security. But fixing what you have now will be a cheap way to get it back on the road.
 
BUCKETOBOLTS said:
What size tires are you running? The Yota is what an 8" ring gear at the most. It should hold up well to a 33, but 35 or bigger I'd look at up grading for security. But fixing what you have now will be a cheap way to get it back on the road.
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i don't think many people are going to agree with you on this one. i will be the first to disagree with you.
 
Ratman said:
There is no reason for properly setup 5:29's not to last. Crush sleeve eliminator, red locktite on the ring bolts, properly torqued and set to the tight side of the spec. Break it in right and change the oil after 4~500 miles and it should last.
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i have broken two sets. both of which were set up us you say. the 5.29 pinons are so small that seems to the root of all my broken teeth. in fact all the ones i have had have been on the tight side with perfect patterns. i would do 4.88 if i had had yota axles.

about the warrenty of the gears involved. if they last a year and a half then i would say they were just fine.
 
stone said:
i have broken two sets. both of which were set up us you say. the 5.29 pinons are so small that seems to the root of all my broken teeth. in fact all the ones i have had have been on the tight side with perfect patterns. i would do 4.88 if i had had yota axles.

about the warrenty of the gears involved. if they last a year and a half then i would say they were just fine.
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Yep, they are small, no doubt. Were you setting up with a crush sleeve or a shim spacer? I've not broken one myself but the few I've seen busted had either crush sleeves and or lockers. I do know from drag racing, no preloading the gear set before slamming it will break it. While preloading aint really a option in a crawler, not bouncing the shit out of it is. :D The 4:88's are definatly bigger. Cryo hardening maybe?
 
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