ClimberTom Posted October 22, 2018 Share Posted October 22, 2018 Hi. My first post so please bear with me... I have an F reg Defender 90 V8 3.5l (also my first Land Rover) and I'm trying to get to grips with one or two things. I was told when I bought it that is is an original V8 Staition Wagon (and Paddock Spares have confirmed the original V8 from the Reg) but one or two things don't quite add up. Nothing major but it just got me thinking. Today I wen hunting for serial numbers but I couldn't find anything on the transfer box or gearbox in any of the locations provided by the font of all knpowledge that is google. Any help in identifying them would be most appreciated. The gearbox has R-1-3-5 forward and 2-4 aft which makes me think LT77 but then there are other things that make me wonder - it splits in half forward to aft along the centreline and doesn't look like the LT77 boxes that I've seen on google... I've attached some photos, appologies for the poor quality, but can anyone help identify these? Also where is the best place to look up engine serial numbers as that one I could find! Thanks all. Quote Link to comment Share on other sites More sharing options...
western Posted October 22, 2018 Share Posted October 22, 2018 chassis number will give you the original spec, a V8 vin should be like similar to SALLDHHV7BA****** The last 8digits are year, factory, serial number. gearbox is more likely the LT85 5 speed unit short video here of where to find the serial number. serial number for a LT230 transfer box should be stamped see the note below the 3rd video on https://www.ashcroft-transmissions.co.uk/transfer-boxes/lt-230.html Quote Link to comment Share on other sites More sharing options...
Landrovernuts Posted October 22, 2018 Share Posted October 22, 2018 Looks like a split case LT85 gearbox. Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted October 22, 2018 Share Posted October 22, 2018 LT85 as above. V8 engine numbers : http://www.gomog.com/allmorgan/V8enginenumbers2.html Quote Link to comment Share on other sites More sharing options...
Chicken Drumstick Posted October 22, 2018 Share Posted October 22, 2018 As others have said. Box is a Santana LT85. The Lt77 wasn’t used on these. Btw you don’t have a Defender. You have a Ninety it should have a 4 pin rear diff if nobody has swaped the axle out. Quote Link to comment Share on other sites More sharing options...
smallfry Posted October 22, 2018 Share Posted October 22, 2018 All looks right to me. Mine is an 85 though. Later V8s had the split case LT85 that you have, and the transfer box will be 1.195 ratio, which you will find on a sticker on the top surface, but you will have to take out the middle seat cushion and take off the seat box top cover to see. Unless you can get a mirror up there from underneath. Also the V5 should state something like 90 V8SW in the title, which cannot be changed Quote Link to comment Share on other sites More sharing options...
ClimberTom Posted December 2, 2018 Author Share Posted December 2, 2018 Thanks all. (and sorry for the slow reply - clearly my notificagtion settings are not right...) Is it possible to fit an oil cooler to this gearbox? It's running a bit warm in the cab and the heat seems to be coming from the gearbox. Anyone know what the temp should be? and If you can fit a temp switch or sensor to give a warning of excessive heat or fit a temp gauge? Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted December 3, 2018 Share Posted December 3, 2018 Temperature stickers are your friend: Honestly though, your box is unlikely to be overheating - even 100deg is well within operating spec for gear oil although you'd burn your hand on the gearbox if you touched it. Heat in the cab is not a surprise with a V8, some foil-backed insulation under the tunnel could make a fair difference, plus just sealing up any gaps. Quote Link to comment Share on other sites More sharing options...
widget Posted December 14, 2018 Share Posted December 14, 2018 I had a 90 V8 factory job. The gearbox is a great cabin heater - if you don't like it insulate the cab rather than cool the oil. Quote Link to comment Share on other sites More sharing options...
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