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84-85 Trucks & 4Runners 2nd gen pickups and 1st gen 4Runners with solid front axles

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Old 09-30-2009, 08:31 PM   #1 (permalink)
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Put in EZ-Locker...now 4Runner bangs and will not steer....any advice? Please?

1985 Toyota 4runner, 250,000 miles, 22RE, Auto Trans, 4.35 geared

Ok, so I put in a Detroit EZ Locker into my 4runner. Everything went in pretty smooth. When I went for a test drive, the locker was working until I crawled over a huge boulder. The 4runner actually cleared the builder flawlessly...then I heard a loud bang and the 4runner shuddered back and forth going any further. I took the 4runner out of 4x4 with the hubs still locked. The banging stopped but the steering was way off...like I had no power steering. I had to really turn the wheel in order to make simple turns.


I unlocked the hubs and the steering is fine. If I shift into 4x4 (hi or lo) without the hubs locked...no banging and no problems steering. Only when the hubs are locked does it act really weird. Any thoughts, suggestions? I used only Toyota seals and torqued everything to spec when rebuilding. I am thinking my locker is screwed up.


Thanks for ANY suggestions. This board is awesome!


JARED
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Old 09-30-2009, 08:37 PM   #2 (permalink)
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By the way....the locker is in the front

Locker is in the front and i am running 32 inch tires.
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Old 09-30-2009, 08:58 PM   #3 (permalink)
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a locked front end tends to want to pull the way it wants to go. I run an Aussie up front and at the end of a day of wheeling my arms are tired.
I use a twin stick so that I can pop in and out of 4WD when I am binding up.

Did you do the set up yourself? If so did you do it correctly? Remember to put the thrush washers back in? I got lucky on my 1st Diff set up, I got the carrier bearings mixed up. Than I ended up following a write up on Zuk's site: http://gearinstalls.com/
to undo my mistakes...

but from the shuttering to described it sounds like you might have sheared a tooth on the ring gear...
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Old 09-30-2009, 09:34 PM   #4 (permalink)
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Stupid question, but do i need to use the old thrust washers on the EZ locker if the locker was installed in the front diff? Would the absence of thrust washers cause the problems I am experiencing?


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Old 09-30-2009, 09:36 PM   #5 (permalink)
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possible blew a birf?
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Old 09-30-2009, 09:39 PM   #6 (permalink)
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sounds like a birf explosion, get longs and never look back
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Old 09-30-2009, 09:48 PM   #7 (permalink)
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Quote:
Originally Posted by Jason4X4 View Post
possible blew a birf?
that is also a possibility...one reason I have a twin stick and Dirty 30's

Jared: did you do any hard turns in 4WD with the front wheels bound up that might lead you to do this to a birf?
Click the image to open in full size.

Quote:
Originally Posted by JaredL View Post
Stupid question, but do i need to use the old thrust washers on the EZ locker if the locker was installed in the front diff? Would the absence of thrust washers cause the problems I am experiencing?


Thanks,
JARED
If the instructions for the Detroit are like the Aussie than yes.

From what I understand a Detroit EZ locker is a typical lunchbox locker (http://www.offroaders.com/tech/detroit-ez-locker.htm).
Sometimes people forget to take the Thrust washers off the diff gears and put them on the locker..
Click the image to open in full size.
Click the image to open in full size.

can't say for sure this is your issue but offering a possibility
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Last edited by dropzone; 09-30-2009 at 09:49 PM.
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Old 09-30-2009, 09:57 PM   #8 (permalink)
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u dont need to be turning in a bind to blow them up, ive gernaded a few on soft dirt hills, and blew up one backing out of my driveway. after replacing 9 birfs in 3 months, i got longs with hub gears, now the outter hub gear breaks.
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Old 10-01-2009, 06:12 AM   #9 (permalink)
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Thanks all for the responses. We'll find out when I tear it all apart next week. You are all referring to "longs". What are those? Longer axles? Where do I find them?


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Old 10-01-2009, 06:47 AM   #10 (permalink)
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Update your thread when you find what you blew up.

Chromoly 30 spline birfields are Dirty 30s and Longfields.

Both work well.

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Old 10-01-2009, 08:05 AM   #11 (permalink)
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This guy should get you pointed in the right direction if you are in need of birfields or longfields

http://www.longfieldsuperaxles.com/
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Old 10-01-2009, 08:05 AM
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1984, 4runner, adding, bang, detroit, ez, ezlocker, locker, lockers, loud, put, shift, toyota, toyotas, twin

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