Reply With QuotePretty close, LT for Leyland transmission and the other as you said is for shaft distance apart.Originally Posted by 123rover50
YarnMaster
SupporterOn the weekend I was asked by a young bloke what the LT and 95 etc meant. I am embarresed to say that I was unable to give him a satisfactory answer. Something like LT is light truck and the figures are a measurement in mils between shafts. Not very enlightening.
Can someone give a better explanation please.
TopicToaster
Pretty close, LT for Leyland transmission and the other as you said is for shaft distance apart.
Cheers......Brian
1985 110 V8 County
1998 110 Perentie GS Cargo 6X6 ARN 202516 (Brutus)
YarnMaster
SupporterOK I measured my 110,s Lt 95 and it is 95 between the intermediate shaft and the output shaft. Now not having seen a LT 230 I dont know what it looks like but 230 mm between the shafts makes for a wide box. Is this correct?
Super Moderator
The LT230 is no wider than the LT95, so it is the distance between mainshaft and output shaft.
The LT95, LT77 and LT85 were all measured in the main box - mainshaft to layshaft?
The later Defender boxes are no longer termed "Leyland Transmission" but "R" = Rover as in the R380 but have no idea where the 380 comes from.
Diana
Last edited by Lotz-A-Landies; 30th June 2011 at 11:31 AM.
You won't find me on: faceplant; Scipe; Infragam; LumpedIn; ShapCnat or Twitting. I'm just not that interesting.
TopicToaster
380 is the newton metres of torque it was designed to withstand AFAIK
YarnMaster
SupporterWell I am still not clear on this. Is it Tbox shafts or main gbox shafts.
If its between the main shaft and layshaft
, with the LT 230 thats a big box.
Someone must know. I know its not important but when the young bloke asks me something I feel I should give the correct answer.
TopicToaster
This page:
Geoffrey Miller's website
says the 230mm is between the input and output shafts of the transfer case.
Thats the only reference my google-fu can find.
Super Moderator
The LT95 is a combination box containing both a main gearbox and a transfer box. When designed it was unique, but in line with British Leyland convention was measured in the main gearbox between the mainshaft/primary pinion and the layshaft.
The LT230 is only a transfer box and doesn't have a main gearbox so is measured between the input shaft and output shafts. When you consider the lateral shift of the driveline and the vertical drop, a distance of just over 9" isn't such a big box.
You won't find me on: faceplant; Scipe; Infragam; LumpedIn; ShapCnat or Twitting. I'm just not that interesting.
YarnMaster
SupporterThank you. All clear now. Different system for different boxes.
AT REST
G'day 123rover50
The 85 RRC that I have has a LT77 5 spd gearbox and the LT230 transfer box,so therefore the G/box is 77mm between shafts, and the LT230 Transfer is 230 mm between shafts
The LT 77 came about because of the need for a 5 spd box and Leyland used the one from the Triumph Spitfire/Stag.
The LT95 4 speed box constant 4x4, was designed for use in the Military 101 gun tractor,in the late 60's, hense it's heavy slow change speed it was then used by Spen King in his newly designed Range Rover which gave it constant 4 x4, he then incorporated 4 wheel disc brakes to give the new vehicle safe braking power.
Hope that is of some help in explaning to the young fella
cheers
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