GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

4WD question (binding while turning)

Old Jun 22, 2010 | 09:20 PM
  #11  
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Actually, I never drove it in Auto 4X4 after the gear swap. Just 4 high. It only does it when turning hard but even on dirt. It was dry dirt, but I was still surprised about how bound up it felt.
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Old Jun 22, 2010 | 09:25 PM
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It is going to bind up on hard terrain. It sounds normal.
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Old Jun 22, 2010 | 09:29 PM
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Yea its normal for it to bind like that in 4wd. The lower gears probably just make it more noticeable. Just like when it seems to bind more in 4 low.
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Old Jun 22, 2010 | 09:48 PM
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how do like the gears? ive got 373s cant decide between 430s or 456s thoughts?
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Old Jun 23, 2010 | 06:55 AM
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Originally Posted by axekick
No. in the rear or front?
I havent dealt w/ the front so far, but definately in the rear! Its a 4-6oz bottle u can get from GM. I thot mine was in the front too and it turned out the locker was gripping in reverse and when turning @ slow speeds. Does it only when hot? R/
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Old Jun 23, 2010 | 08:28 AM
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Originally Posted by slocaddy
how do like the gears? ive got 373s cant decide between 430s or 456s thoughts?
I have stock tires on 16's and I love the new gear ratio! My tires are less than 30" so they're pretty small. If your tires are 32" or bigger then definitely go with the 4.56's. Going from 3.42's to 4.30's I was afraid it would be too steep but now its much nicer to drive. It just feels lighter.

I havent dealt w/ the front so far, but definately in the rear! Its a 4-6oz bottle u can get from GM. I thot mine was in the front too and it turned out the locker was gripping in reverse and when turning @ slow speeds. Does it only when hot?
Thanks, man. I'll get some of that stuff this week. I appreciate you guys. I got good advise on here during the gear job and I think at some point I'll be able to contribute. Actually I owe some pics of the front diff job. I still plan on getting those up This is my new favorite E-Place.
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Old Jun 23, 2010 | 08:32 AM
  #17  
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Sounds normal to me to. If you have traction on all 4 corners and in 4wd turning it should and will bind.
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Old Jun 23, 2010 | 05:50 PM
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Originally Posted by dhpro
I havent dealt w/ the front so far, but definately in the rear! Its a 4-6oz bottle u can get from GM. I thot mine was in the front too and it turned out the locker was gripping in reverse and when turning @ slow speeds. Does it only when hot? R/
Are you talking about the G80 or an aftermarket LSD? The G80 doesn't take an additive either, just synthetic 75w-90 Most aftermarket LSD's and older factory LSD's with clutches need the additive...(used to be known as "whale sperm" btw)
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Old Jun 23, 2010 | 06:05 PM
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Originally Posted by KySilverado
Sounds normal to me to. If you have traction on all 4 corners and in 4wd turning it should and will bind.
Yeh, I think you mentioned earlier you "used to drive around in auto 4wd all the time" but this time your are testing it in 4wd. Auto won't bind as much, but will. But 4wd definitely binds. Plus, the obvious IMO, your huge jump in gear ratio is going to magnify everything. Smaller rotations makes for quicker reactions on the binding. (just made that last one up, but sounds like it makes sense to me)

Originally Posted by budhayes3
Are you talking about the G80 or an aftermarket LSD? The G80 doesn't take an additive either, just synthetic 75w-90 Most aftermarket LSD's and older factory LSD's with clutches need the additive...(used to be known as "whale sperm" btw)
Yeh the G80 doesn't need the additive, but definitely put the synthetic 75/90 in it. The whale sperm won't hurt it if you do decide to use it.

I do gas pedal turns all the time (engaging my LSD ) and after about a year if I do a gear oil and additive change in the rear I can tell the difference. Less binding in the rear clutches.
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Old Jun 23, 2010 | 09:48 PM
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Originally Posted by dewmanshu
Plus, the obvious IMO, your huge jump in gear ratio is going to magnify everything. Smaller rotations makes for quicker reactions on the binding. (just made that last one up, but sounds like it makes sense to me)
LOL, sounds good to me too Dewey!
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