Gt6s Posted February 24, 2016 Share Posted February 24, 2016 Posted about this on Gt6 thread. I have a Rover V8 engine and Lt77 gearbox Any of you guys know about fitting this to a Triumph six ? I have heard 2300 2600 SD1 bellhousing may be used ? There are two 2600 SD1's breaking on ebay at present. Really I need to know what along with the bellhousing will I need ?Thanks in advanceLaurence Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted February 25, 2016 Share Posted February 25, 2016 This is alleged to be a picture of onehttp://www.ebay.co.uk/itm/Rove.....rksid=p2047675.l2557It also looks like the 2300/2600 engine has a steel backplate which could also be a useful object.Nick Quote Link to comment Share on other sites More sharing options...
Gt6s Posted February 25, 2016 Author Share Posted February 25, 2016 Thanks NickLaurence Quote Link to comment Share on other sites More sharing options...
Richard B Posted February 26, 2016 Share Posted February 26, 2016 I was told years ago of a Stag with an LT77 5 speed. The Stag manual box is the same casting as the saloon one. Just a longer input shaft, so should be do-able. Quote Link to comment Share on other sites More sharing options...
Nick Moore Posted February 26, 2016 Share Posted February 26, 2016 Apparently Ken Bryant did this swap - he discusses it at the end of this thread: Sorry , link no longer available Quote Link to comment Share on other sites More sharing options...
josh18 Posted February 26, 2016 Share Posted February 26, 2016 Damn, I had an LT77 police spec box a while back and sold it on! Quote Link to comment Share on other sites More sharing options...
Gt6s Posted March 20, 2016 Author Share Posted March 20, 2016 Update got a 2300 / 2600 bell housing from a very helpful lady on SD1 Facebook group.Laurence Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted March 20, 2016 Share Posted March 20, 2016 That's good. So...... Is it going to work?Nick Quote Link to comment Share on other sites More sharing options...
Gt6s Posted March 20, 2016 Author Share Posted March 20, 2016 Will find out tomorrow Nick (Monday 21st) going out to workshop visiting rights on my projects.Laurence Quote Link to comment Share on other sites More sharing options...
Gt6s Posted March 21, 2016 Author Share Posted March 21, 2016 IT FITS !!!! It is official a 2300 / 2600 Rover LT77 bell housing bolts straight up to a big T or TR engine backplate LESS ONE BOLT the one just below the starter motor this is where the slave cylinder should sit on the LT77. This area I will be cutting away, firstly because it will foul my modified phoenix exhaust manifold secondly because this protrusion will also foul the chassis further back. I will be fitting a concentric internal slave. One thing I did notice the gearbox will have a cant towards the left on a vertical mounted engine. So in other words fitted in a big T gearbox will be vertical. Another point is that longer bolts than Triumph used will be needed also longer the three top studs. Not a big issue.Next is an appointment with the plasma cutter and find a suitable concentric slave.Also had a look at the gear lever remote in regard to shortening it. THIS LOOKS STRAIGHTFORWARD.Laurence Quote Link to comment Share on other sites More sharing options...
Nick Jones Posted March 21, 2016 Share Posted March 21, 2016 That's an interesting bit of news then. Pity the BH in question so damn rare these days......I think this might also mean you could fit an R380 gearbox as I think the BHs are interchangeable. Dunno if the R380 will fit between the chassis rails though. This could be useful as while a good 2.5 might test an LT77, it won't frighten an R380.I believe the Sherpa version of the LT77 has a short remote as standard, though as you say I think they are pretty easy to shorten.Nick Quote Link to comment Share on other sites More sharing options...
Gt6s Posted March 21, 2016 Author Share Posted March 21, 2016 While hunting one I was told of a 2600 engine and box locally also found a bell housing in Detroit, and yes the R380 will also fit. Unfortunately I do not have an R380 It is a C suffix LT77. And BTW they are the weight of a small mountain.And yes a LDV Pilot remote will do it but not hard to shorten the SD1 unit.Laurence Quote Link to comment Share on other sites More sharing options...
Gt6s Posted March 27, 2016 Author Share Posted March 27, 2016 Quoted from Nick Jones That's an interesting bit of news then. Pity the BH in question so damn rare these days...... I have found a contact who reportedly has a load of these bell housings (Ballymena Northern Ireand). I sold the V8 and bell housing into the trade. The guy who bought these specialises in reconning Rover V8s. He maintains he has previously weighed these 2300 / 2600 in but he will not be doing that again now he knows what they fit.He also has a load of LDV Pilot short remotes.If any interest PM me I will forward contact infoLaurence Quote Link to comment Share on other sites More sharing options...
yorkshire_spam Posted March 27, 2016 Share Posted March 27, 2016 If only somebody would come up with an off-the-shelf parts conversion for the R380 4x4 to R380 rwd. Think of all those rotten discoveries waiting to have their boxes removed! Quote Link to comment Share on other sites More sharing options...
josh18 Posted March 28, 2016 Share Posted March 28, 2016 Are the ratios in the R380 box any good to us? Quote Link to comment Share on other sites More sharing options...
yorkshire_spam Posted March 28, 2016 Share Posted March 28, 2016 Quoted from josh18 Are the ratios in the R380 box any good to us? There's not really a practical way to turn a 4x4 R380 into a rwd,ratios are not terrible:1st: 3.39:12nd: 2.13:13rd: 1.30:14th: 1:15th:0.77:1from what I recall the input shaft on the 4x4 r380 is about 8 foot long as well! Quote Link to comment Share on other sites More sharing options...
Gt6s Posted March 28, 2016 Author Share Posted March 28, 2016 LDV Pilot.Laurence Quote Link to comment Share on other sites More sharing options...
GT6 M Posted March 28, 2016 Share Posted March 28, 2016 gear ratios dont seem v good to mebut diff version have diff setswould be good to have a 5th about .70 or less !!R380 box ratio's fitted to LDVs3.98:12.50:11.50:11.00:10.78:1intresting readhttp://www.gomog.com/allmorgan/gearboxes2.htmlM Quote Link to comment Share on other sites More sharing options...
Gt6s Posted March 28, 2016 Author Share Posted March 28, 2016 I was asking the guy who bought the V8 engine and bell housing (V8 Rover specialist) his opinion on the LT77 box. His reply was that the LT77's poor reputation is mostly undeserved. He maintains a lot of this poor reputation comes from guys with kit cars building high HP Rover engines and fitting them to untouched boxes with 100,000 miles on them and thrashing the nuts off them they then suddenly explode. He said if properly rebuilt and serviced it is a perfectly good box.Laurence Quote Link to comment Share on other sites More sharing options...
GT6 M Posted March 28, 2016 Share Posted March 28, 2016 Also, the model was improovd as time went oneer another intresting articlehttp://www.expeditionlandrover.info/gearboxes.htmM Quote Link to comment Share on other sites More sharing options...
TedTaylor Posted March 29, 2016 Share Posted March 29, 2016 Quoted from yorkshire_spam If only somebody would come up with an off-the-shelf parts conversion for the R380 4x4 to R380 rwd. Think of all those rotten discoveries waiting to have their boxes removed! There are far more of the LT77 gearboxes kicking around than R380s - the LT77 was fitted to the earlier (pre 1995) Discos and anyway the R380 has wear problems.However because the Land Rover gearbox casing is designed to have a transfer box nailed to the back of it conversion will be extremely difficult if not impossible (or worth it).I have a couple of Rangie ZF autoboxes here amongst the mass of Range Rover spares (and LSE soft dash complete car) that I have to sell and did wonder about the feasibility of using the ZF box in a Triumph. However quickly realised it was a no go because of the transfer box fitting.MUT Quote Link to comment Share on other sites More sharing options...
Gt6s Posted April 25, 2016 Author Share Posted April 25, 2016 I am attaching photos of the LI77 Gt6 gearbox conversion the first photo is relevant to Big T the others attached for pure interest.Laurence Quote Link to comment Share on other sites More sharing options...
Gt6s Posted April 25, 2016 Author Share Posted April 25, 2016 The Mondeo concentric clutch slave cylinder conversion MOCK UP.Laurence Quote Link to comment Share on other sites More sharing options...
josh18 Posted April 26, 2016 Share Posted April 26, 2016 Looking great- keep up the photos! Quote Link to comment Share on other sites More sharing options...
Gt6s Posted April 29, 2016 Author Share Posted April 29, 2016 A COMPLICATION ! Today I put a Gt6 flywheel. Also brand new 2300 / 2600 / TR7 clutch on a mock up engine for measuring up distances for the concentric clutch cylinder. The good news is, as I expected I still have to machine back the aluminium hub that carries the cylinder a bit more. Even had I machined it back too far I can always shim it forward again. ANYWAY I don't need to do that ! HOWEVER ! The complication is that the spigot shaft is too long. The mounting flat on the flywheel is 158mm away from the face of the gearbox. The end of the spigot splines to the gearbox face is 162mm so spigot is 4mm too long. I can resolve this. Just have not decided exactly I will do this. Any Ideas welcome. Drill and grinder or set the gearbox up in the lathe and mount a grinder on it ?Laurence Quote Link to comment Share on other sites More sharing options...
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