MTF

[Les Parker]

LT77 is a 5 speed tranny, if it is the later LT77S, with synchro 5th gear, I would use the MTF.
LT76 is the Series 4 Speed transmission.

LT = Leyland Transmissions
76,77,85,95 is the diameter of the mainshaft in millimeters.

[Monkeyboy]

LT = Leyland Transmissions
76,77,85,95 is the diameter of the mainshaft in millimeters.

Really? I thought it was the dimension between the centerline of the mainshaft and layshaft......

[Maryland 110]

can't speak to the Amsoil product but I use Redline MTL in 95's, 77's and 380's.
In my personal truck (lt77s) I noticed a pronounced difference when
I put the Redline in. I have been buying it from some fellow on ebay in Pa for a bit over $8 a qt.

[geatlander]

My 110 was dealer serviced in 2001, just prior to my getting it, and the service report indicates 8 quarts Dexron ATF. I guess Miami didn't get that memo.

8 Quarts? Hopefully you got about 4.5 quarts in a 'to-go' box. If I'm not mistaken, the R-380 takes about 2.7 litres (4.7 pints) and the LT-77 takes even less at 2.2 litres (3.9 pints).

I just ordered a gallon of Redline MTF in hopes of eliminating the dreaded 2nd-gear grind. I have tried 80W-90 and then ATF. Both with the same result. I'll try to follow up with the results.

When I took delivery of my D-90 the gearbox was empty.

[CliftonRover]

Les thanks for that info about the tranny classifications, learn something new everyday.

[Terrys]

8 Quarts? Hopefully you got about 4.5 quarts in a 'to-go' box. If I'm not mistaken, the R-380 takes about 2.7 litres (4.7 pints) and the LT-77 takes even less at 2.2 litres (3.9 pints).

I just ordered a gallon of Redline MTF in hopes of eliminating the dreaded 2nd-gear grind. I have tried 80W-90 and then ATF. Both with the same result. I'll try to follow up with the results.

When I took delivery of my D-90 the gearbox was empty.

As I said, above, that was before I acquired the truck. In any case the 110 has a high capacity transmission oil cooler, which the 90 does not have. That, alone takes an additional 2.5 quarts.
I'm not surprised you have difficulty using 90 weight, since the internal oil pump in an R-380 can't even pump it.

[cellulararrest]

Hmm,

Is there any data to back that? I'd be interested to see some testimonials.

http://www.d-90.com/forum/showthread.php?t=10811&highlight=redline+mtl