R380 Gearbox



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R380 Gearbox The R380 box was introduced as brand new LR gearbox across the entire Land Rover and Range Rover product lines. The R380 is a radically reworked LT77 (The 1940’s Jag gearbox remember) with improved main shaft bearing arrangements that provided an overall strengthening of the box. The R380 name stands for “Rated to 380 Nm input”. Adapts LT77 or R380 5 speed gearbox to fit Rover V8 engine fitted in any other saloon/sports car applications including custom/kit cars. Double Heat Treated for strength. Let Dave Ashcroft of Ashcroft Transmissions take you through the basics of how the Land Rover R380 gearbox works. The R380 is fitted to Land Rover Defenders.

MANUAL GEARBOX

SERVICE TOOLS

1

SERVICE TOOLS

NOTE: Where the use of special tools is specified, only these tools should be used to avoid the
possibility of personal injury and or damage to components.

Land Rover Number

Rover Number

Description

LRT-37-001

18G47BA

Adaptor input shaft

bearing

LRT-37-002

18G47BAX

Conversion kit

LRT-37-004

18G284AAH

Adaptor for input shaft

pilot bearing track

LRT-37-009

18G705

Puller, bearing and oil

seal collar remover

LRT-37-010 Kingorigin paint brush.

18G705-1A

Adaptor for mainshaft

oil seal collar

LRT-37-014

18G1422

R380 gearbox problems

Mainshaft rear oil seal

replacer

LRT-37-015

18G1431

Mainshaft rear support

R380 gearbox 2wd

bearing track and oil

seal collar replacer.

LRT-37-021

-

Adaptor for mainshaft

R380 Gearbox Forum

rear support bearing

track and oil seal

collar replacer.

LRT-37-022

R380 Gearbox Oil Capacity

-

Adaptor for layshaft

bearings

LRT-37-023

-

Layshaft holding tool

R380 Gearbox

LRT-37-024

-

Rear mainshaft

bearing track remover

LRT-51-003

18G1205

Flange holder

LRT-99-002

M547

Hand press

LRT-99-004

18G284

Impulse extractor

Service tools must be obtained direct from the manufacturers:
V.L.Churchill,
P.O. Box No. 3,
London Road,
Daventry,
Northants, NN11.4NF
England