In <
[email protected]> Pantelis Giamarellos wrote:
> Austin thanks for your kind reply.
>
> Was there a problem with the Borg Warner's transfer box operating
> gearlever and mounting bracket?
>
> It appears that in order to make a Borg Warner tbox's gearlever sit
> properly on a NAS D90 autobox center console we will have to extend
> its mounting bracket a bit forward.
>
> Thanks for the rear propshaft tip.
When I did mine (done this job twice now on Defenders) I moved the
bracket forward so the rear two holes of the bracket were bolted into
the front two holes of the gearbox. To add some strength I then cut a
rectangular piece of 3mm steel plate with 6 holes in it. The centre rear
pair of holes matched up with the rear gearbox holes, the middle pair
match up with the front gearbox holes and the rear bracket holes, the
front pair match up with the front bracket holes. Once it's all bolted
together the plate should support the bracket.
The operating rod will also need extending.
I know Austin extended his rear propshaft but, having done this job
twice now, if you use the original gearbox mounting holes and the
correct gearbox mounting brackets for the Bw xfer box, the rear
propshaft can remain standard and the front propshaft is about 2 inches
too short. A standard Classic Range Rover front propshaft for this xfer
box will fit if you don't want to have one modified.
I have no idea why Austin had to modify the rear prop unless he used
LT230 gearbox mounts with the BW box in which case that would explain
why the engine mounts had to be moved forward. The LT230 mounting
brackets have a different offset to the BW ones. The BW ones move the
transfer box back a few inches.
You need to be aware that if you are using wheels larger than 205x16 on
this 90 you might well find the BW box too high geared and the engine
will struggle to cope with it at cruising speeds. I ran mine with 235/
85s on and found that at 60MPH, locked up, the engine was sat at around
1800RPM - too low for the engine to cope with inclines without kicking
down. SWMBO's 90 (3.9V8 Auto BW) runs fine on 225/70x16s but struggled
on the motorway when I fitted my 235/85x16s to it. My 100 inch Defender (
3.9V8 Auto LT230, was BW) copes much better with the 235/85s on the
motorway since I swapped from BW to a 1.4 LT230.
cheers
Dave W.
http://www.yorkshireoffroadclub.net/