V8Lenny:
There was some talk in finnish Facebook-group about converting old 0/1-series hub reduction axle to direct drive axle by removing hub reduction and fitting a hub from some Scania 6x4 axle. That way you went from about 2000 rpm at 80 km/h to about 1450 rpm/80 km/h, and if engine rpm was raised to 3000 or more you got 160+ km/h topspeed…Was that very popular in UK ? In Finland I know many that did it.
hey V8,The fastest on a 140 was 4.71 and for an 141 3.88.
Speed depends a bit of tyre size (not mutch but).
Those diffs with hub reduction were the 3.44 and 3.88 so with hub reduction about 480and 5.70.
The 3.88 was used in the 141 and first 142’s, but the very last 141’s and the 142 was available with the 3.44 but only with low profile tyres. Which gave speeds of 90 kph at about
1650/1700 revs. But at that time some changed tyre to the biggest size 1200/20 and 13/22.5 which gave 90 kph at around 1500 revs.
So @2000 revs it gave 120 kph and @2500 about 150 kph, but keep in mind that this are only theoretic speeds and not what you really drive, which can be up to about 7 kph less.
But that was not a very good choise with only 10 speeds, first as slow it is can Always keep up, but in the high range. And if it is windy fully loaded and you have to drive in 9th that’s
a step backwards.
Eric,