GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

aftermarket LSD

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Old Sep 25, 2008 | 10:32 AM
  #1  
pavulon's Avatar
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BMW M5, Subie outback, Cruze td, GL550, LPE 630 C6 Z06
aftermarket LSD

It is my understanding that there will be no off road pkg for '09 and there has not been a rear LSD available in GL320 or Gl550's. That being the case, is there an aftermarket LSD available for these vehicles? Sorry if this topic has been covered but I didn't find a thread.
Tx.

Last edited by pavulon; Sep 25, 2008 at 08:39 PM.
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Old Sep 25, 2008 | 01:01 PM
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GL 320cdi, Chevrolet Avalanchero, GLE 350 (on order)
Why would you need one? The wheel base is too long for serious rock crawling and trails to begin with. But if it's locking action you are after, you do get a virtual locking effect from modern AWD systems. I can tell you that I have been off-roading Land Rovers without lockers for the past seven years, and never felt I needed one, I don't do a lot of crawling.
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Old Sep 25, 2008 | 08:36 PM
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BMW M5, Subie outback, Cruze td, GL550, LPE 630 C6 Z06
Originally Posted by Brocktoon
Why would you need one? The wheel base is too long for serious rock crawling and trails to begin with. But if it's locking action you are after, you do get a virtual locking effect from modern AWD systems. I can tell you that I have been off-roading Land Rovers without lockers for the past seven years, and never felt I needed one, I don't do a lot of crawling.
I'm not into rock crawling. I'm concerned by the local 2ft (heavy) snow fall events.
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Old Sep 26, 2008 | 01:59 PM
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GL 320cdi, Chevrolet Avalanchero, GLE 350 (on order)
not really sure what you hope to gain with an LSD in those condidtions. It does have a fairly sophisticted AWD system. It's not like an open diff pickup with 4wd...
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Old Sep 28, 2008 | 10:22 AM
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uhh..ok...not wanting be inflamatory here but that is the sort of line I'd expect from a sales person trying to sell me what he/she has on the lot instead of what I'm looking for. I'd hope we can both agree that retarding (braking) power to a slipping wheel is NOT the same as powering two wheels. In deep snow, momentum is the difference between shoveling/towing and getting somewhere. LSDs and appropriate tires are key in snow.

So, unless this vehicle shares the rear diff w/ something else, I'll assume that nobody makes an aftermarket rear LSD for this vehicle...and I suspect that a retro-fit 334 option is cost prohibitive...so it's a used GL450 if I can find one w/ 334...or off to Land Rover which I'm not entirely convinced is a great move.
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Old Sep 28, 2008 | 10:58 AM
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GL 320cdi, Chevrolet Avalanchero, GLE 350 (on order)
Originally Posted by pavulon
uhh..ok...not wanting be inflamatory here but that is the sort of line I'd expect from a sales person trying to sell me what he/she has on the lot instead of what I'm looking for. I'd hope we can both agree that retarding (braking) power to a slipping wheel is NOT the same as powering two wheels. In deep snow, momentum is the difference between shoveling/towing and getting somewhere. LSDs and appropriate tires are key in snow.

So, unless this vehicle shares the rear diff w/ something else, I'll assume that nobody makes an aftermarket rear LSD for this vehicle...and I suspect that a retro-fit 334 option is cost prohibitive...so it's a used GL450 if I can find one w/ 334...or off to Land Rover which I'm not entirely convinced is a great move.
Have you ever driven a modern AWD system with snow tires? You are not going to need or want a locker.

BTW, I don't sell anything, you are free to buy whatever you want. I'm just a consumer who has owned two jeeps, three Land Rovers, and this GL in the past twelve years or so.

I also live where it has already snowed once this fall, so I winter drive about 3/5 of the year. Both my jeeps had lockers, and I find them pointless and dangerous in the snow. Limited slip? that is likely way better than a true locker, but there you are using a different principal, but the exact same effect through an electronic system. You only limit slip at the wheels instead of in the pumpkin.

Anyway, if you are sold on the need for a locker, the GL likely is not the right vehicle for you, because I have not seen or heard of any locker for this axle. I could be wrong though. All I know is I never had any problems in snow, or even almost two feet of mud and water in an open diff, AWD Land Rover, with momentum...
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Old Sep 29, 2008 | 12:04 AM
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2007 GL320 CDI, 2001 TJ Rockcrawler, 2005 Scoobie STI
If you were really interested in it, you could probably order the rear or front and rear diff carrier from a unit with the offroad package and just swap it in... The gears are the same, and my bet is that the lockers simply use 12 volts to engage them, so its just a matter of hooking up an aux switch to give them power...

Or if you wanted to do it on the cheap, if you could find a wrecked 450 with the off-road package, you could snag those and put them in as well.

In the Jeeping community (to which I belong) there is all kinds of swip-swaping and modifying going on...
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