Damnit....one more reason to hate NA spec Toyotas......i want a A442
I mean not getting a 1HD-T is bad enough, but not getting the A442 or the 5-speed (cant remember the name) just blows
Front diff failure
- Thread starter eleblanc
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Damnit....one more reason to hate NA spec Toyotas......i want a A442
I mean not getting a 1HD-T is bad enough, but not getting the A442 or the 5-speed (cant remember the name) just blows
I think installing that washer on top rather than on the bottom where it's supposed to be is what ultimately caused it.
The same thing happened to me when I installed my lift. My cousin who helped me, forgot to re-install the washer for that front diff support. When I came around to installing the headers, we noticed the front diff was tilted forward and that rear bolt was pulled up into the support bushing. Luckily, I found the washer in the garage and put it back on. All seemed well after that until a month later when my front diff finally said it had enough.
I'm guessing the the tilting forward of the diff is what caused everything inside to be off-kilter?
I still have my original support if you need one, as it is in one piece. The rubber bushing isn't mangled up as bad as yours is in the pics. The support and bushing are one unit.
- Thread starter
- #23
Come one!
i'm using the rear axle of the HDJ with the Elocker.My guys say they did not messed up the front diff. And i kinda have to agree, because is argument is that he dismentled the UZJ and place the engine and both axle in a wood crate before we started to dismentle the HDJ. So he couldn't have wrongly installed back the UZJ front diff. BUT the first thing i'll do when the covers comes off is count the number of teeth
s*** happens...i hope thats not it....EDIT: 32" tires.
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- Thread starter
- #24
Christo told me that if there is a mess in there i might consider a complete front diff front toyota. Looking at the EPC. and searching online i found a complete front diff 4.1 for 1070$. That sound inexpensive. If i need gears, adding a ARB will make things alot more expensive.
The question is the part number for the complete front diff for a HDJ with 4.1 ratio is NOT the same as a 2004 + 5 spd UZJ with 4.1 ratio. Do you guys think the front diff of a 2004 could fit on my truck?
The only thing i see is a replaceble rubber sleeve in the front diff cover support?
The question is the part number for the complete front diff for a HDJ with 4.1 ratio is NOT the same as a 2004 + 5 spd UZJ with 4.1 ratio. Do you guys think the front diff of a 2004 could fit on my truck?
The only thing i see is a replaceble rubber sleeve in the front diff cover support?
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- Thread starter
- #25
Looks like it is a 4 pinion, oddly the EPC image above show a 2 pinion....
I called my local dealer and for a whopping 1080$ i can get the ring and pinion. BUT if budget is tight he is offereing me a complete front diff for 975$...go figure........So i'll be ordering a completely new Front diff....
BTW after 3 times counting teeth it is the 4.1 diff. so no mix up there and adds fuel to what really caused this....At this point;
1-when the HDJ got involved in the accident it somehow weaken the gears..but we have a hard time beleiving this since the only damage to the drive train was a bent spindle.
2-Driving a week with a failed rear diff support caused the drive shaft and pinion to get pulled axially, causing pinion excess play with the ring and it eventually failed...
3-Oil problem, pinion bearing failed caused excess play between ring and eventually failed. Once it is out we will pull the carrier and see.
EDIT: Does toyota use red RTV to seal the front cover? or this diff was tampered with?
I called my local dealer and for a whopping 1080$ i can get the ring and pinion. BUT if budget is tight he is offereing me a complete front diff for 975$...go figure........So i'll be ordering a completely new Front diff....
BTW after 3 times counting teeth it is the 4.1 diff. so no mix up there and adds fuel to what really caused this....At this point;
1-when the HDJ got involved in the accident it somehow weaken the gears..but we have a hard time beleiving this since the only damage to the drive train was a bent spindle.
2-Driving a week with a failed rear diff support caused the drive shaft and pinion to get pulled axially, causing pinion excess play with the ring and it eventually failed...
3-Oil problem, pinion bearing failed caused excess play between ring and eventually failed. Once it is out we will pull the carrier and see.
EDIT: Does toyota use red RTV to seal the front cover? or this diff was tampered with?
My rear had a gasket, not RTV, but don't see one on the page of parts detail you show.
If there is any, any chance of axle mixup you may want to check rear ratio by counting revolutions of driveshaft to wheel. You know, just for piece of mind.
If there is any, any chance of axle mixup you may want to check rear ratio by counting revolutions of driveshaft to wheel. You know, just for piece of mind.
- Thread starter
- #27
Unless the HDJ came from france with different ratio front and rear. no way i could have mixed up the rear axles. The UZJ100 from USA DID NOT have a elocker. The HDJ100 axle DID have a elocker. And unless i've been dreaming the last month, the rear axle is with elocker version from the HDJ is installed on the truck. BUT i'll go and count the rear...lol...you never know...i guess...
Curious, why don't you just install the entire 4.3 diff you have on your shop floor and then swap the R&P from the old rear diff into your E-locker diff. Are the rears not compatible? The 4.3's would be better with 33" tires anyway!
- Thread starter
- #29
First because they are sold (in a lot with the V8),still here tho, i'll keep my agreement with buyer. And because i don't have time to put the rear a part and change the R&P.
But i didn't though about that earlier, i beleive OEM tire is 31 3/4" and if i run 33" this summer, the ratio is about the same...
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A guy from France just report to me he broke the front diff while crossing Marroco...
According to him, looks like the front and rear weirdly don't have same ratio !!! (4.10 and 4.11)
- Thread starter
- #32
A guy from France just report to me he broke the front diff while crossing Marroco...
According to him, looks like the front and rear weirdly don't have same ratio !!! (4.10 and 4.11)
Highly doubt that, on toyota EPC it reports 41:10 for both front AND rear....at least for a 1999 HDJ100
Ask him to inspect the rubber mount rear side. I guess if it was broken he would have notice.
We have 4.10 R&P in stock new aftermarket for $250. 4.30 is a bit tough, OE is around $800, or complete diff about $1200. We can build a complete 4.10 or 4.88 diff with all the goodies like solid spacer etc for about $900 or $1700 with air locker. We also have the loose parts. We also ship to canada. I would highly recommend doing the ARB air locker.
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A guy from France just report to me he broke the front diff while crossing Marroco...
According to him, looks like the front and rear weirdly don't have same ratio !!! (4.10 and 4.11)
A 4.10 and 4.11 ratio will run fine together. Not stating that Toyota or aftermarket have this available, but mechanically, they are the same. You will likely get more of a differential from tire wear than .01 to 1 difference in rings and pinions.
Yes, it makes sense.
- Thread starter
- #37
The truck is back on the road, i still haven't received the rear support, so we welded the broken one. It should hold until next week when i receive the new one.
So we started to look into the old diff, the carrier is removed, the pinion flange removed. And the diff housing is on the press with 20T on the pinion and it simply won't come out.... At this stage i beleive i must have screwed up filling the diff and the pinion bearing weren't being lubricated...
So we started to look into the old diff, the carrier is removed, the pinion flange removed. And the diff housing is on the press with 20T on the pinion and it simply won't come out.... At this stage i beleive i must have screwed up filling the diff and the pinion bearing weren't being lubricated...