Mud-club

Vehicle & Technical => Defender => Topic started by: smith335 on December 07, 2009, 18:27:47

Title: lt77 gear box what oil?
Post by: smith335 on December 07, 2009, 18:27:47

hi every one, can some one please help me what oil should be in a Lt77 gear box on a 1984 90.
some places say atf and some say land don't recommend it any more and you should use mtf or some thing( not 100% sure what oil)

i know the t-box should me ep90 ( is that right?)

so what should i use?
look forward to your comments
kind regards
Az

Title: Re: lt77 gear box what oil?
Post by: maggers on December 07, 2009, 19:49:09

Hi, You're bang on with EP90 for the transfer box, main box uses ATF such as Dextron 2 spec. If you use anything thicker the gearchange will be stiff when cold & the oil pump does'nt like it. :)

Title: Re: lt77 gear box what oil?
Post by: smith335 on December 08, 2009, 22:00:26

Thanks for the reply, i will get some atf.

does it have to be dextron 2 or can i use a higher spec like dextron 3? or is it not worth it?

cheers

Title: Re: lt77 gear box what oil?
Post by: ChrisV8 on December 08, 2009, 22:16:23

Best oil for them is Difflock stuff, I have it in both LT77s in the 90 and the RR makes the gearchange so much better.

It's not the cheapest though

Title: Re: lt77 gear box what oil?
Post by: maggers on December 09, 2009, 22:06:30

Dextron 2 should be fine unless your're feeling flush! ;)

Title: Re: lt77 gear box what oil?
Post by: smith335 on December 10, 2009, 20:55:57

Thanks for the replys, dextron 2 it is as i am not that flush at the mo!!

like the sound of the diff lock stuff but its out of my price range, is it realy that much better?

ttfn

Title: Re: lt77 gear box what oil?
Post by: ChrisV8 on December 11, 2009, 11:46:07

I have run the difflock stuff for a few years worked well in an LT85 as well, makes the gearchange very good and seems to help fuel economy as well !! It doesn't need changing as often as the normal stuff, I found the ATF a bit "thin" for my liking, But it's not cheap.

Title: Re: lt77 gear box what oil?
Post by: smith335 on December 11, 2009, 13:58:16

I might look into the diff lock oils,

i could ask santa to bring me some  :D

thanks for the help

ttfn

Title: Re: lt77 gear box what oil?
Post by: trecfive on December 11, 2009, 14:26:03

I wouldn't waste my money,buy ATF and change it regular. Agricultural dealers are cheaper than motor factors or garages.

Title: Re: lt77 gear box what oil?
Post by: redhand on December 11, 2009, 19:32:13

Quote from: trecfive on December 11, 2009, 14:26:03

I wouldn't waste my money,buy ATF and change it regular. Agricultural dealers are cheaper than motor factors or garages.

seconded.  Too many peep's pushing expensive oils nowadays as above farmers marts or agri dealers for all your oils ovaline tractor oil for the engine. if it's good enough for tractors it's good enough for a landy.