LT77 gearbox oil - Defender Source
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  #1  
Old October 1st, 2012, 12:36 PM
melittle
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Mark Little
1987 Land Rover 110
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LT77 gearbox oil

Being a newbie I went down the path of researching what the recommended oil is for a LT77 gearbox. Of ourse there seem to be as many opinion on what to use as there are owners, and much of the information on the web is not very current. I'm thoroughly confused now since there is no definitive spec, unless I just haven't found it? Help....
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  #2  
Old October 1st, 2012, 12:41 PM
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down_shift
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Russell
94' D90 ST & 06' LR3
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I use Red Line MTL 70W80 GL-4:

- Popular for BMW, Honda and Acura, Ford Focus, late-model Mini Cooper, Land Rover/Range Rover LT77S, Dodge & Jeep NV1500, NV3500 and NV5600 truck transmissions
- Popular replacement for and improvement over GM Synchromesh® (#12345349) and Auto-Trak II® (#12378508) and Chrysler spec MS-9224
- Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage
- Offers quicker shifts, perfect synchronizer coefficient of friction
- Eliminates notchy shifting, even when cold
- High performance gear protection and longer synchro life
- Satisifies the gear oil viscosity requirements of 70W, 75W, 80W, and motor oil viscosities of SAE 30, 10W30, and 5W30
- Recommended for GL-1, GL-3, and GL-4 applications as well as where most special synchromesh fluids are specified
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Old October 1st, 2012, 01:03 PM
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Red90
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John B.
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Quote:
Originally Posted by melittle View Post
I'm thoroughly confused now since there is no definitive spec, unless I just haven't found it? Help....
The factory spec is ATF. These days there are a lot of low viscosity manual transmission fluids that are a better choice.

Redline MTL is easy to get and works very well.
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Old October 1st, 2012, 01:49 PM
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bossman429
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Adrian
1988 90
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I use Redline MTL in mine
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Old October 1st, 2012, 03:03 PM
Naplm00
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Matthew
1983 110 200tdi 3 door soft top
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yea the MTL is awesome, cured some sloppy shifting in mine
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