larryowner Posted March 22, 2013 Share Posted March 22, 2013 Just started on a 88'' trialer useing a Disco 300TDi chassis ,engine, etc and a Defender R380 gearbox, with Lightweight body parts. I can see that i'm going to need to move the engine back just 100mm or so, but i want to keep the gearbox in the same place. As all the R380 boxes have a long bell housing i was hoping to adapt one from an LT77 to fit between the 300 engine and the R380 as a way of moving the engine back. But after many hours of checking part numbers and reading threads, i can't find a definitve answer as to whether there is an off the shelf primery shaft that will fit in the R380 box and be the correct length for the LT77 bell housing. I know that Ashcroft do a stumpy bell housing, but this would bring the engine further back than necessary.Do you know if this can be done,thanks for any help. Quote Link to comment Share on other sites More sharing options...
muddy Posted March 22, 2013 Share Posted March 22, 2013 I would think having the engine as fat back as possible is no bad thing. Why not just use a stubby LT77? Will. Quote Link to comment Share on other sites More sharing options...
Daan Posted March 23, 2013 Share Posted March 23, 2013 if you go for a defender lt77S (latest version), the strength is pretty much the same as a 380, with the length you need. It fits if you use a 200tdi or 2.5d back plate. I find for offroad use, having reverse next to 1st and 2nd gear a big plus. Daan Quote Link to comment Share on other sites More sharing options...
bill van snorkle Posted March 25, 2013 Share Posted March 25, 2013 You can have the primary shaft cut , shortened and welded to the required length. If the 2 halves are spiggoted together the result can be straightened after welding, and because the shaft only receives engine torque the welded joint is more than strong enough. Quote Link to comment Share on other sites More sharing options...
larryowner Posted March 26, 2013 Author Share Posted March 26, 2013 Thanks for your idea's, if i went with the Defender LT77s box how would i ID one, would it have 'S' as a suffix to gearbox number ? Or can anyone suggest what prefix and suffix this 'S' box should have. thanks. Quote Link to comment Share on other sites More sharing options...
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