LR3 Talk about the Land Rover LR3 within.
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LR3 diffs

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Old Jul 26, 2016 | 06:31 PM
  #1  
Zelatore's Avatar
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Rock Crawling
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Default LR3 diffs

OK, here's a question for you. Maybe out dealer-techs will have some input.

I am not aware of any aftermarket gears for the LR3. Since most people don't run over 32" tires there's not a lot of demand. But some of us are running 33s and a handful are or have at least tried 35s. By the time you get to a 33 you're 10% bigger than stock and you can really feel it. It sure would be nice to be able to re-gear.

Scanning the final drive ratios of the diesel and gas version of the LR4 and RRS I only see taller gears, not shorter like we would need for bigger tires. This is to be expected since those are more powerful (more torque) engines and can pull a higher gear. Lucky them - they could swap in the LR3 gears if they wanted to go shorter.

So the question is does anybody out there know of gears for the LR3?

Alternatively, perhaps the LR3 diff is used in a different vehicle and gears are marketed for it? I've heard rumors that the only reason ARB has a locker for the LR3 is because it happened to be the same as something else (Ausi Ford Ranger??). Perhaps that would be our 'in' to find different gears? Do we know who made the LR3 diff? That might be a place to start.
 
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Old Jul 27, 2016 | 06:43 AM
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cmb6s's Avatar
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Might be a good question for Todd (tlt/unseenone), but I haven't seen him on here in quite a while. If you want his e-mail, I can PM it to you. Since he deals with remanufacturing diffs, he might know more than most.
 
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Old Jul 27, 2016 | 09:49 AM
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Rock Crawling
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I tried him once about a year or so ago but no joy.
 
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Old Jul 27, 2016 | 03:03 PM
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Don, Graham from our club is pretty familiar with them, but having said that I do believe at some point the global Ford Ranger used the same diff, and that is why ARB made an air locker for them. I would look for gear options for that.
 
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Old Jul 27, 2016 | 03:24 PM
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Really? Ford Ranger....that's sort of surprising considering how small'ish that truck is and heavy the LR3 is. Or am I over-thinking it?
 
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Old Jul 27, 2016 | 09:10 PM
  #6  
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Rock Crawling
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I'll see if Graham has anything to say. I don't think he has a gearset but maybe his sources might know at least who made the diff. All my googling keeps finding stuff related to the US Ranger which used the common Ford 8.8.
 
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Old Jul 27, 2016 | 10:43 PM
  #7  
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what is the ratio in our trucks? 3.73? 3.55?
 
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Old Jul 27, 2016 | 10:52 PM
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Rock Crawling
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3.73 I believe. So a 4.10 would be about right for 33" tires to get back to original over-all.
 
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