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 What to check in a used 4cyl 3rd ?
#718212
04/23/06 02:35 AM
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Joined: Aug 2005
Posts: 11
OP
Need a Spot
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Bought a "good used" 4.88 4cyl 3rd with a Truetrac. It feels smooth, no visible defects. About 10 thou ringear backlash. Tiny bit of pinion end play. I tightened the carrier bearing adjusters by 5 notches, Probably could go another notch. Ringear has "A" shaped logo. Looks like bottom half of "A", is an "M". Stamped on RG is 39X8 11060/98. Number "52" has been etched on RG. Anything else I should do or check ??
Any way to determine which Truetrac is in there ??
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Re: What to check in a used 4cyl 3rd ?
[Re: turtlejim]
#718213
04/23/06 10:42 PM
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Joined: Oct 2002
Posts: 1,305
Body Damage is Cool
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5 notches each side <img src="/forums/images/graemlins/kewl.gif" alt="" /> Good job.
I don't recognize the logo you described....doesn't sound like a Genuine so that's all that really counts.
Unknown about the Truetrac.
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Re: What to check in a used 4cyl 3rd ?
[Re: ZUK]
#718214
04/24/06 12:33 AM
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Joined: Nov 2003
Posts: 827
Rock Warrior
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39x8? isn't that 4.88 instead of 4.10?
What do u mean which truetrac? Take a pic so we can see.
91-22re(408xxxkm & counting with a rebuilt long block)- Flatbed/ Camper/33x10.5BFG-AT/Open 4:88/1.5"BJS/ +2"Shackles/Add-a-Leaf/AirLift/Dual-Batteries
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Re: What to check in a used 4cyl 3rd ?
[Re: turtlejim]
#718216
04/24/06 05:27 PM
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Joined: Oct 2002
Posts: 1,305
Body Damage is Cool
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no etching on the case with 913A318 or something like that?
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Re: What to check in a used 4cyl 3rd ?
[Re: ZUK]
#718217
04/24/06 05:38 PM
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Joined: Oct 2002
Posts: 1,305
Body Damage is Cool
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turtle---got ya beat....just finished a "re-fresh" on a 4 cyl 3rd and I squeaked 6 notches out of it <img src="/forums/images/graemlins/cheers.gif" alt="" /> ![[Linked Image]](http://gearinstalls.com/jason_files/j43.jpg)
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Re: What to check in a used 4cyl 3rd ?
[Re: ZUK]
#718218
04/24/06 07:57 PM
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Joined: Aug 2005
Posts: 11
OP
Need a Spot
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Zuk,,, With your knowledge, experience, and judgement of Toyota 3rd's, I would expect you to beat me every time. I probably COULD go another notch. Somewhere on the net I read to stop tightning when the carrier caps start to spread as measured with a dial indicator.
I have throughly examined and find no identifying marks except as stated.
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Re: What to check in a used 4cyl 3rd ?
[Re: turtlejim]
#718219
04/24/06 08:07 PM
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Joined: Jan 2000
Posts: 12,153
Web Wheeler
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As far as the TureTrac, it should behave similar to a locker. Turn one axle and the other shoulc turn the same direction. Difference from an auto-locker would be noted when holding one axle still and turn the other axle back and forth. Instead of clunking to an abrupt stop (like a locker), the TT will gradually tighten up and stop as the axle is turned back and forth.
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Re: What to check in a used 4cyl 3rd ?
[Re: 4Crawler]
#718220
04/24/06 09:53 PM
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Joined: Jan 2005
Posts: 178
Wheeler
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The TrueTrac is a limited slip. It functions just like any other LSD out there. But its designed different, as in no clutches or friction plates. It has helical gears that transfer torque to the wheel with traction. It supposedly will never wear out like a conventional LSD.
Last edited by 4mudder; 04/24/06 09:55 PM.
89 K5 Blazer,TBI 350, 700R4, 6" lift, 40" groundhawgs,3/4 ton 14 bolt rear, 3/4 ton 10 bolt front, 4.88:1 Gears
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