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02-20-2010, 08:01 PM
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#1 |
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Registered User
Join Date: Feb 2010
Location: Ely, Iowa
Posts: 4
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Differential Questions
Im thinking about new differentials in my 68 k20 and i am interested in limited slip or lockers. I have heard quite a bit of bad things about lockers but i have never had anything with one. Are they really that bad?
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02-20-2010, 08:20 PM
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#2 |
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Registered User
Join Date: Nov 2005
Location: Breckenridge, texas
Posts: 83
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Re: Differential Questions
lockers are cheaper, but they tend to slip the inside tire when turning. They get into a bind. You would need to go to a clutch type limited slip to avoid that. If your truck is offroad only, locker is fine.
Doug
__________________
68 CST 396, 60K original miles 70 Longhorn project 72 Stepside (150% complete) 67 Stepside project 71 RS Camaro 90% done 71 BB Corvette 50% complete 78 K5 project |
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02-21-2010, 10:08 AM
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#3 | |
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: Differential Questions
As crazy as it sounds, it depends upon what transmission you have. Detroit Lockers are more "clunky" or "twitchy" with a manual than they are with an automatic. This has to do with the "load" on the differential. When you push in the clutch of a manual, the drivline "unloads" which will allow a Locker to unlock. How much you feel this depends somewhat upon the truck. Short beds, smaller tires and less weight make it more noticable.
It is "managable" but you do have to know it's there and drive accordingly. Never put one in the front, they are waaay to twitchy for that. A clutch type or gear type differential are better for that. Big tires and pretty much any kind of positraction device are hard on front axles though. Be prepared to deal with that ($). It is usually the short side (passenger) axle that can't take it. There are stronger, aftermarket, axles available for them.
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You can review the site's rules here. Quote:
Bad planning on your part does not necessarily constitute an instant emergency on my part.... The great thing about being a pessimist is that you are either pleasantly surprised or right. 
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02-21-2010, 11:03 AM
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#4 |
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Registered User
Join Date: Feb 2010
Location: Ely, Iowa
Posts: 4
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Re: Differential Questions
Well the truck is going to be a daily driver and something that is isnt too bad offroad. I know i can find a limited slip or a locker for the front end but where can i find one for the eaton?
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1968 K20 327 4-speed 1997 K2500 350 auto |
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02-21-2010, 03:54 PM
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#5 | ||
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just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: Differential Questions
Quote:
Again......No Lockers in the front
__________________
You can review the site's rules here. Quote:
Bad planning on your part does not necessarily constitute an instant emergency on my part.... The great thing about being a pessimist is that you are either pleasantly surprised or right.
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02-21-2010, 05:39 PM
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#6 | |
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Registered User
 
Join Date: Nov 2006
Location: Pahrump, NV
Posts: 1,079
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Re: Differential Questions
Quote:
I had lockers front and rear in a cj8 and the front lockers (detroit) where a pain even when out wheeling, but than again I was able to climb some cool stuff  and it wasn't my daily driver.
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"Men are like steel. When they lose their temper, they lose their worth." — Chuck Norris |
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02-21-2010, 11:26 AM
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#7 | ||||
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"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,978
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Re: Differential Questions
Eaton makes the original Posi-traction diff that came in GM vehicles...
Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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