Thread: Centre Diff Lock

There's nothing wrong with the LT95 - I used to drive a mates and although it is a bit more agricultural than the 5 speeds, and not as refined as much as the rest of the car, they do the job nicely, and if mine had one in it, I wouldn't be pulling it out, I'd be happy to live with it.

Keep it as it is for now, use it and enjoy it. If you really think you need an extra gear, you can do something about that later on.

I'm used to an agricultural style gearbox, my main vehicle is a IIA. The LT95 is safe.

Nice, then you'll have no probs in the Rangie then.

The LT 95 is a simple and very strong trans, with very few comforts. Very easy to rebuild/ repair, and unlike the LT77 and R380 they are built with huge shafts and bearings, and a decent oil capacity. I have rebuilt all of them over the years, LT77, R380, LT85 and the LT95 is my favourite for strength and ease of repair.
R380 etc are fine in a Disco Tdi or V8, but put some big torque numbers into it, IE turbo 4BD1, and things get a little close to the edge in my opinion.....

The sort of work I have put mine through I am glad I have one.

JC

Apparently the "LT" stands for Leyland Transmission, since Rover was part of the Leyland group at the time, (it's complicated), and "95" is the distance between main and layshaft in millimetres. The same goes for the LT77.

I'm actually just about to change my Rangie from a 727 Torqueflite automatic, which I like quite a bit, to an LT95. (Which I'm excited about - I just got a NOS box from England). The reason is because the 727 is a little too complicated for use up here should something go wrong, and mine needs to come out anyway since it's leaky. I went for the LT95 because it will go straight in, but also because it's known as the strongest of the Landie gearboxes.

Like you, I'm used to double-clutching a SIIA box and I've never even driven an LT95 before. However, given my standards of comfort are so low, I'm sure I won't mind. The LT95 is always described as "agricultural", but I suspect if you're used to smooth modern car-like transmissions that's what you'd say. You can always swap transfer ratios in them, and there are used overdrives available for them as well.

You should drain the oil from yours right away as people are always getting confused and putting gear oil in them. You're supposed to use 20w-50 engine oil.

Originally Posted by Davo

Apparently the "LT" stands for Leyland Transmission, since Rover was part of the Leyland group at the time, (it's complicated), and "95" is the distance between main and layshaft in millimetres. The same goes for the LT77.

I'm actually just about to change my Rangie from a 727 Torqueflite automatic, which I like quite a bit, to an LT95. (Which I'm excited about - I just got a NOS box from England). The reason is because the 727 is a little too complicated for use up here should something go wrong, and mine needs to come out anyway since it's leaky. I went for the LT95 because it will go straight in, but also because it's known as the strongest of the Landie gearboxes.

Like you, I'm used to double-clutching a SIIA box and I've never even driven an LT95 before. However, given my standards of comfort are so low, I'm sure I won't mind. The LT95 is always described as "agricultural", but I suspect if you're used to smooth modern car-like transmissions that's what you'd say. You can always swap transfer ratios in them, and there are used overdrives available for them as well.

You should drain the oil from yours right away as people are always getting confused and putting gear oil in them. You're supposed to use 20w-50 engine oil.

In cooler climates, you can use a 15W40 as it makes cold shifts better. the ADF states Castrol 15w40 FMX IIRC for the perentie etc.

I run 15w40 engine oil in mine, non synthetic, and recently I fitted a new baulk ring to 4th ,I had a look inside and it appears almost no wear has taken place on gearsets, shafts or anything
This trans has a reasonable amount of torque going through it and tows a bit, too. It has been behind a 4BD1 Turbo for about 150K.

JC

Apparently most of the gears were lifted from a 5ton Leyland truck box, so was the basic design with needle thrust washers etc. I cant find anything confirming this though, just claims from several people over the years. It probably also explains the truck like gearchange too!

Originally Posted by justinc

The LT 95 is a simple and very strong trans, with very few comforts. Very easy to rebuild/ repair, and unlike the LT77 and R380 they are built with huge shafts and bearings, and a decent oil capacity. I have rebuilt all of them over the years, LT77, R380, LT85 and the LT95 is my favourite for strength and ease of repair.
R380 etc are fine in a Disco Tdi or V8, but put some big torque numbers into it, IE turbo 4BD1, and things get a little close to the edge in my opinion.....

The sort of work I have put mine through I am glad I have one.

JC

Originally Posted by landrover dave

Apparently most of the gears were lifted from a 5ton Leyland truck box, so was the basic design with needle thrust washers etc. I cant find anything confirming this though, just claims from several people over the years. It probably also explains the truck like gearchange too!

That figures, so much of this transmission seems like overkill to me. Especially behind a low compressioon 3.5 V8

The layshaft is huge, the Mainshaft is the same, and the gears/ level of bearing support is over engineered. Big one piece alloy castings and huge locating dowels between bellhousing, front support plate and main case.

Shifting improves with the 'thinner' oils, I am running 10w30 synthetic engine oil in a customers V8 2 door RRC, it shifts the best of any I have driven. Almost acceptable as a 'modern' trans IMO.

JC