Thread: LT230, High range gear swap

Since your going to have some of it striped down, you may as well re-race it,shim up the center diff fit new o rings and seals. Be good as new then.

This possibility may be of interest.
For my purposes with 300Tdi 130 Defender used mainly on rural roads in flat country, would prefer 1.2 high to standard 1.4. A while ago, bought an LT230 that came out of a Discovery. Turned out it was 1.003 type originally from an early Rangie.

Reckon first and reverse would be too fast in high. Also, would be handy at times if they were slower in low. Anyway, came up with a slightly cheaper solution than Maxidrive type low. Had a new input gear cut for the 1.003 box. Instead of standard 26 tooth to 41 on the middle gear of the cluster, it is 22 teeth driving the 44 tooth high range gear. Overall result 1.27:1 high and 4.21:1 low compared with standard 1.41 and 3.32.

I still have to get around to properly assembling this box and installing it.

Originally Posted by Rangier Rover

Since your going to have some of it striped down, you may as well re-race it,shim up the center diff fit new o rings and seals. Be good as new then.

do you know a rough idea on a cost for parts?

Originally Posted by jazzaD1

do you know a rough idea on a cost for parts?

RTC3890G GASKET & SEAL KIT LT230

FRC7437 SPACER COLLAPSIBLE FOR CENTER GEAR BEARING SHIMMING

NY120041L NUT NYLOCK M20 ZINK PLATED X 2

NY108041 NUT NYLOCK M8 ZINK PLATED X 1

FRC6968 THRUST WASHER CENTER DIFF (COPPER WASHERS) X 4

IYH000030 NUT DIFF STAKE X 1

UYH500020 LOCKNUT INTERSHAFT LT230 X 1

PRC2911 SWITCH REVERSE X 1

STC1130G BEARING OEM X 2

FRC7810 I/SHAFT BEARING 33205 OEM X 2

FRC7871G BEARING TIMKEN X 1

606474G BEARING TIMKEN TRANS BOX X 1

FRC5564 BEARING M/SHAFT TRANSFER BOX X 2

$250 to $300.