Defender gearbox

[Project Green Oval]

Hello just bought a 90 minus engine and gearbox i have really good 200tdi from a disco i can fit but what are my gearbox options?

I found thid one on ebay will it bolt straight up to the 200?

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?Vie...em=190311165043

Regards

David

[cieranc]

Yes, it's an LT77, but not at £200! That's quite expensive to my mind. A fully re-conned 'box is only £375.

Find your nearest LR breakers, they'll be able to help you out.

[western]

Seeing as it comes with Transfer box & props & the gear levers, I'd say that was a fair price.

[Aragorn]

What chassis is the defender?

If its a 300tdi chassis you would be better getting a 300tdi (R380) box and using that as it will ensure the chassis mounts all line up properly.

[Project Green Oval]

What chassis is the defender?

If its a 300tdi chassis you would be better getting a 300tdi (R380) box and using that as it will ensure the chassis mounts all line up properly.

Hi should have said its a 1986 was originally a diesel then got replaced with a 3.5 v8 which died that was removed sat around a couple of years and now its mine.

Thanks for the help

David

[western]

LT77 will drop straight on to the 200Tdi & on to the existing gearbox mountings.

[Project Green Oval]

LT77 will drop straight on to the 200Tdi & on to the existing gearbox mountings.

HI one from a disco would be no good though?

[western]

HI one from a disco would be no good though?

only if you spent time fitting the correct 90/110 parts to the gear selector mechanism, but the gearbox in your ebay link is a 90/110 assembly & will drop straight in.

[Project Green Oval]

only if you spent time fitting the correct 90/110 parts to the gear selector mechanism, but the gearbox in your ebay link is a 90/110 assembly & will drop straight in.

Take it i would have no probs with the gearing either?

[western]

if it comes from a ex-military 90/110 some had a 1.667 high range ratio 7 different 1st & 2nd ratio gears IIRC from normal civilian market 90/110, otherwise it'll be bog standard 90/110 gearboxes.

[Gromit]

A fully re-conned 'box is only £375.

If you're quoting Ashcrofts, then that price is if you supply your own box for the recon.

[Les Henson]

Ashcrofts will rebuild and covert a Disco box to a Defender one for not a lot of money. They'll do mine once I don't have to spend money on other things

Les

[Ex Member]

First check the gearbox suffix.

If you use an LT77, you want a "G" or "H" suffix. If you get the earlier versions, expect it to die within a few years.

http://www.ashcroft-transmissions.co.uk/part_1.html

The LT 77 was introduced to the Landrover range in approx 1983 with the suffix D box and was developed over the years to the suffix H which was last used in 1994.

The D and E are very similar the only difference being the reverse gear was a little fatter in the E,

When they went from E to F larger layshaft bearings were used.

The G was further improved by all the gear teeth including the pinion getting approx 20% thicker. Also a much wider pump was used to increase the lubrication and cope with the fact that some of the LT 77"s were now being supplied oil cooled, ie V8 NAS 90, 3.9 RR Classic and the 3.5 EFI Discos.

The H (termed the LT 77S) was the same as the G in terms of strength but used a different syncro set up called the "Double Syncro", In reality it didn"t work much better.

Also make sure the t. case is 1.4:1. 1.6:1 is not preferred for a TDI.