gearbox conversion lt77 to r380

[JIMBOBLY]

has any body on here ever done this conversion,as i cant seem to find a GOOD second hand lt77 box,and there's loads of r380's about,wonderd how you go about it,weather i can change bell housin or whatever,any help would be much appreciated,jim

[lambert]

Not done it myself but it seems to be a very common upgrade and as far as I'm aware it is basically a straight swap.

[weeone]

Done it (several years ago, mind) - and physically its a straight swap.

There are several ancillary issues you need to deal with, though:
* The speedo is now electronic, not mechanical - so the speedo-head is wrong (or you need to guddle with transfer boxes)
* The reverse-connector is different, but has the same basic operation
* The mount is different, and needs the matching gearbox crossmember

[JIMBOBLY]

well thankyou for the replies,one thing i forgot to say was,its actually my range rover im doing it in,because the engine n box was origially out of a disco,i know they are the same,so the speedo is not a problem,i'll get round it some how,thanks

[wizard]

the hand brake cables are also different

wizard

[Range Rover Blues]

Bolting it to the engine is the esy bit, you need the later crossmemeber IIRC but the RRC and Disco have the same chassis.

Are you keeping the old T-box? if so then handbrake, speedo etc are not a bit problem.  If you get it with the reverse switch then a bit of soldering is all that's required.

IIRC the stick comes up in the same place though, but R380s were factory fit on 300series/soft dash.