NAS Defender drivetrain

[Nick Boy]

Hello guys,

Been having a tough time working this out, we are likely to need a new clutch on the wolf, fortunately, I have been told by Land Rover Military vehicles that the clutch on the wolf is a "Standard Heavy Duty Land Rover Clutch" so I should be able to put on a readily availiable part. However, as the 300TDi was never released in the USA, and I don't know what gearbox etc. NAS defenders use, I still cannot be certain that Land Rover USA will have the parts we require.

Can anyone here tell me what type of gearbox the NAS defenders have used, ours is a R380. Googling has suggested that people have had them retrofitted by aftermarket shops, but not whether Land Rover themselves would be able to supply the parts.

Many thanks for your help in advance,


Nick

[carlosz]

try rovers north, maybe contact east coast rovers, I work for a dealer and we have information of world spec rovers. quite often parts can be specially ordered with a v.i.n may ta ke a little while tho.

[TerryS]

All NAS110s were originally built with LT77 gearboxes, and most were changed out by dealer return programs to R380 gearboxes.
That shouldn't matter, because the pressure plate and friction disc did not change when the gearboxes changed.
Mark Letorney, at Rovers North can deffinately tell you if there is a difference between the pressure plate and friction disc on the V8 flywheel, as opposed to the Tdi flywheel.

By the way, That was a nice article about your truck in the newest issue of LRO Int'l.

[Nick Boy]

Originally Posted by TerryS

All NAS110s were originally built with LT77 gearboxes, and most were changed out by dealer return programs to R380 gearboxes.
That shouldn't matter, because the pressure plate and friction disc did not change when the gearboxes changed.
Mark Letorney, at Rovers North can deffinately tell you if there is a difference between the pressure plate and friction disc on the V8 flywheel, as opposed to the Tdi flywheel.

By the way, That was a nice article about your truck in the newest issue of LRO Int'l.

Thank you, I will try to contact Mark at Rovers North, I have tried contacting Land Rover Los Angeles, but have yet to have a response, should make more progress when I arrive on Tuesday though.

Thanks for the comment on the article, we have got a deal now with Land Rover Monthly Magazine, who want to follow the expedition, and the truck, so hopefully, we should be in their pages in the next 3 months.


Thanks,


Nick and the Lone Wolf team

PS. Anyone wanting to meet up in LA or San Francisco, please let us know, take a look at our August journal for a very approximate estimation of where we will be when.

[chrisvonc]

You could also try George at Rovers Down South (www.roversdownsouth.com) and see if he may have one of the military parts. He brings in all kinds of non-NAS parts so he might be a good resource to check.

[TerryS]

OK, Nick, I did some investigating. In typical fashion, Land Rover shows a different part number for clutch disks used on NAS110, and ROW110.
Not surprisingly, they also show different part numbers for the disc used on TD5, 300Tdi, 200 Tdi and 2500NA
I have a NAS disc sitting here and it's 10.5" in diameter

The NAS manual (only V8) gives FTC160, though that's probably been superceded. ROW V8 is FTC 4067
TD5 plate is FTC4631
300 Tdi plate is FTC 4204
200 Tdi plate is FTC 2149

I do know that the R380 BOX used with the 300 Tdi is the same BOX as used with the NAS V8, but they differ in the input shaft. Hopefully Land Rover was wise enough to only change the length, and not the diameter and spline count
All of the above is fairly useless information and you may be left going back to someone in the UK and paying Parcel Force a kings ransom to get you what you know is the right part, but I would still give Mark a call. ( I had Matt Savage rush me out a part and it seemed like it was here before I hung up the phone with him)
George is also a good source, but may not have what you need sitting on the shelf.

[Nick Boy]

Originally Posted by TerryS

OK, Nick, I did some investigating. In typical fashion, Land Rover shows a different part number for clutch disks used on NAS110, and ROW110.
Not surprisingly, they also show different part numbers for the disc used on TD5, 300Tdi, 200 Tdi and 2500NA
I have a NAS disc sitting here and it's 10.5" in diameter

The NAS manual (only V8) gives FTC160, though that's probably been superceded. ROW V8 is FTC 4067
TD5 plate is FTC4631
300 Tdi plate is FTC 4204
200 Tdi plate is FTC 2149

I do know that the R380 BOX used with the 300 Tdi is the same BOX as used with the NAS V8, but they differ in the input shaft. Hopefully Land Rover was wise enough to only change the length, and not the diameter and spline count
All of the above is fairly useless information and you may be left going back to someone in the UK and paying Parcel Force a kings ransom to get you what you know is the right part, but I would still give Mark a call. ( I had Matt Savage rush me out a part and it seemed like it was here before I hung up the phone with him)
George is also a good source, but may not have what you need sitting on the shelf.

Wow, all that is almost certainly going to be invaluable, thank you so much for going to that effort for us. I probably could get the parts in the UK now, and put it all in my luggage. Hopefully, though as you say, there is a tiny chance the clutch components is the same. Can't hold out too much hope of that though... Any guesses how much it will weigh? (don't worry about looking it up, I'm certain it's not worth it!)

Once again, thank you so much for the information and research, we REALLY appreciate it.


Nick

[TerryS]

Nick, The friction plate is only a few pounds, but the pressure plate is more like 16-18 lbs. If your's is just slipping under loaded acceleration, I'd just pop in a new disc and leave the pressure plate till you get home. The only thing that would make me change my mind is if it is slipping badly, heat buildup can cause crazing cracks on the pressure plate itself, and warpage. Once it gets warped, it's as bad as a worn out disc, no full contact.

[antichrist]

My Defender parts book lists these:
V8 EFI _what you'd find in the US
Driven plate -- FTC160 (NLA) use FTC3197
Cover assy -- 57646

300Tdi
Drive plate -- FTC2149 (NLA) use FTC4204
Cover Assy -- FTC575 (NLA) use URB100760

They both use the same release bearing, FTC5200