best diff for motorway cruising

[gassed transit]

looking to get my 150 lwb td in best possible shape for long distance motorway travel (did 824 miles in a day last year in my 80 swb non turbo and boy thats somthing i dont want to experience again), dont get me wrong i loved the old girl but trying to cruise at 70mph was hard work. allways sounded like it was being thrashed within an inch of its life so would like some advice on which diff to go for. only carry light loads (2 motorbikes / 3 very occasionally). its got the 6 stud heavy duty axle.

[MinorMatt]

4.63

given that its a TD it might already have the tall axle. Whats your reg. no we can look up the diff ratio currently fitted

[gassed transit]

just tried putting reg (s689 jsw) into the ford etis site but no info?, will try again tomorrow using vin number.

[MinorMatt]

yup I guess you will need the VIN no

[madmark]

for a 150 its 4.63 or 5.14 that your lot!

[MinorMatt]

Theres a 5.8 as well I believe mark? (although that may just be on the twin wheelers?)

[madmark]

my fire van was 5.83 there is also a 6.14

[AlanN]

6.14 is that the 30mph version

[gassed transit]

ok quick update, went to collect van and phoned wife while i was there to run vin through etis site and it came back as a different reg and colour?????. im no expert but vin number in drivers footwell seemed wrong to so i walked away!. spec from vin 100ps 5.14. no idea if it related to this van or what may have been a completely different one. still looking for a lwb smiley td

[AlanN]

Hope the VIN plate was in the passenger footwell for a start... could have saved yourself a lot of greif if you think its a ringer

[MrMPuk]

Hope the VIN plate was in the passenger footwell for a start... could have saved yourself a lot of greif if you think its a ringer

VIN is in the drivers footwell though.

[AlanN]

Oh yes, Im thinking of the vin plate

[TeeEmm]

looking to get my 150 lwb td in best possible shape for long distance motorway travel (did 824 miles in a day last year in my 80 swb non turbo and boy thats somthing i dont want to experience again), dont get me wrong i loved the old girl but trying to cruise at 70mph was hard work. allways sounded like it was being thrashed within an inch of its life so would like some advice on which diff to go for. only carry light loads (2 motorbikes / 3 very occasionally). its got the 6 stud heavy duty axle.

You racing or doing track days???