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DiscoWeb Bulletin Board » Range Rover - Technical Discussions » Archive through February 02, 2004 » '91 RRC with a worn out Transfer Gearbox « Previous Next »

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Ed Hernandez (Rrc)
New Member
Username: Rrc

Post Number: 1
Registered: 01-2004
Posted on Monday, January 19, 2004 - 08:11 pm:   Edit Post Delete Post Print Post

My BW T-Box is now worn out with 215K miles on it. I want to know what is necessary to replace it with a DII T-box with Diff Lock(is it called an LT230?). Can I use a DII front driveshaft without any modifications? Do I need DII T-Box mounts to the frame? What shifter do I use? How do I know for sure it's in Diff Lock? What else do I need to know? Has anyone do this mod? Any and all info helpful?
 

Steve Cooper (Scrover)
Senior Member
Username: Scrover

Post Number: 643
Registered: 09-2002
Posted on Tuesday, January 20, 2004 - 12:06 am:   Edit Post Delete Post Print Post

I had the conversion done in the summer on my '93 LWB. You can use a DII front shaft if the t-case has a DII flange on the front end. The diff end is the same. If you don't end up getting a DII LT230 (I got an LT230 from a DI) then you can have a DII flange installed or use an adapter - I went with a DII flange. For the shifter I used a DI manual linkage which works great and the diff lock sensor was wired to the transmission/t-case temp warning light. This is quite a common thing to do in this conversion. Other than that you need one new mount on the pass. side of the LT - it's the standard engine/t-case mount unlike the BW. If you do use a DII front shaft, make sure to have it re-built with grease-able u-joints - it will fail eventually and take out your transmission if not regularly serviced.

It's a great upgrade and feels much more sure footed than the BW.

Hope that helps.

SC
 

Geoff 93 RRC (Geoff)
Member
Username: Geoff

Post Number: 215
Registered: 11-2002
Posted on Friday, January 23, 2004 - 05:22 pm:   Edit Post Delete Post Print Post

Steve, had you had any problems with your used LT230? How many miles did yours have? I am debating a rebuilt or used one.

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