AMC 20 track lock - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 04-13-2002, 09:50 PM Thread Starter
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AMC 20 track lock

Are the factory track locks in the AMC 20 any good? I read somewhere that they are not worth rebuilding. I have one in a 77 CJ-7 I was thinking about rebuilding.

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77 CJ-7 304 85 CJ-7 4 inch lift regrooved 33's
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post #2 of (permalink) Old 04-13-2002, 10:00 PM
 
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Re: AMC 20 track lock

got the same in my CJ, I was also thinking of rebuilding.

I couldn't tell you if you should rebuild or not. I know they are not as good as a locker. But the disc kits are only about $50. When I first got my jeep I was happy that I had trac lock , now I wish I didn't so I could put in a lock right.

If you can afford it then go with a locker.

Tony
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post #3 of (permalink) Old 04-13-2002, 10:02 PM Thread Starter
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Re: AMC 20 track lock

Im gonna weld it if I don't use the trac lock. I probably wont waste the time with the trac lock. Thanks for the reply
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post #4 of (permalink) Old 04-13-2002, 11:34 PM
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Re: AMC 20 track lock

The weakness of the all clutch-type limited slip differentials is that they rely on torque applied to both axel shafts to squeeze the clutches together. They're pretty good for drag racers, where tire traction on asphalt provides plenty of grip to lock the clutches. On slippery surfaces, where we need the traction most, there isn't enough grip to lock the unit. Riding the parking brake can help, but it's not a good choice for off road.
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post #5 of (permalink) Old 04-14-2002, 01:49 PM
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Re: AMC 20 track lock

I wouldn't waste a dime rebuilding it. I got a rebuilt carrier with new clutches for my 20 after I found some missing teeth on the side gears. It still doesn't help much at all. As soon as the tire leaves the groung it spins. if you are going to take it out, put something better back in. If not a locker than put a better limited slip like Auburn.
post #6 of (permalink) Old 04-14-2002, 02:42 PM
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Re: AMC 20 track lock

Whether or not it worth doing depends a lot on your application. If you're running stock size tires, it'll help....and for only $50....why the hell not?

If you're running 33s or larger...I wouldnt bother. With the added leverage created by the bigger tire, the LSD (limited slip differential) wont be able to overcome the torque bias, and will be essentially useless.

Thats mt 2 cents..

-remy
post #7 of (permalink) Old 04-14-2002, 02:44 PM
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Re: AMC 20 track lock

What are your choices is you have the trac lok diff? Can you put in any locker you want or not?
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post #8 of (permalink) Old 04-14-2002, 04:15 PM Thread Starter
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Re: AMC 20 track lock

Thanks for all the input. I most likely will weld it. I will be running at least 33s hopefully 35s. I don't have a lot money to put into it, but wanted to know if it was worth anything.

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