G/box xmember.

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Dodgydef...

Member
Posts
11
Location
Kent
Hi...ive got a 1989 90 .. its been fitted with a 300tdi and r380 box. They fergot to put the gearbox crossmember back. Looking at i dont think the original type will fit. Is there another type that will fit......using original mounting holes. ???
 
If you have a 300tdi and long bell-housing R380 fitted in the standard position, it doesn't have the big cross-member which is held on by four bolts, it has a thinner one held on by the gearbox mounting bolts, like the pic below.


s-l1600.jpg
 
Hi...ive got a 1989 90 .. its been fitted with a 300tdi and r380 box. They fergot to put the gearbox crossmember back. Looking at i dont think the original type will fit. Is there another type that will fit......using original mounting holes. ???

Do you have the old x-member? You can cut out the tube section and weld in a a piece of RHS.
 
It is normal for gear box's to be at the same position in the chassis, however the engine of ones with the longer bell housing have the engine mounted further forward over the front axle.
 
There are three possible positions for the engine, which is dictated by the gearbox type, bell housing used and the position of the transfer box.
Virtually all R380's had the long bell housing irrespective of whether it was in a Discovery or Defender, the exception is the short (stumpy) bell housing used when they were fitted behind 2.5 N/A diesels in military 90/110.
If it has a short bell housing the engine will be right up against the bulkhead at the rear of the engine bay. It should have the big engine cross member and everything should be the same as an LT77 installation..
If it has a long bell housing the engine will be right up close to the radiator. In this fitment the transfer box should be two inches further forward than a LT77 installation, which also requires a R380 transmission tunnel, seat box and props. This installation should use the cross member shown in my post above and doesn't have the big engine cross member.
If they have used the long bell housing and fitted the transfer box in the LT77 position then the engine will be in a different position to any standard Land Rover fitment. A R380 gearbox cross member won't fit and you would be better with an engine cross member of some description.
It depends on what parts are going to foul on the cross member, but I imagine it is the exhaust. The thinnest cross member is the one from the TD5 and later, which will miss most things, but modifying an older cross member may be cheaper.
X-members.jpg
 
Probably found the original one did not fit, so they just did not bother to sort it. Following Rougharse Racing's suggestions above should sort the problem.
 
Td5 one looks like it should do the job. Thanks for suggestions...and yes..i expect just left it off after finding it didnt fit.
 
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