Thread: Gearing, what's it mean?

I don't see the problem, I'm afraid. The overall gear ratio, in each case, is given by :-

Gearbox ratio X Transfer Case ratio X Diff ratio.

A couple of the Jeep calculated overall ratios appear to be in error, or rather rounded, so it does not work out exactly.

Interesting specification for comparison with the 80" - dimensions were almost identical, but the Landrover was around 150lbs heavier - but with this you got another 200lbs payload, three seats across the front, 12v electrics, and a four speed box. Engine power and torque were virtually the same, although the Willys engine was smaller.

John

Bit off topic but the weight difference could nearly be put down the the chassis size alown

Originally Posted by 460cixy

Bit off topic but the weight difference could nearly be put down the the chassis size alown

And the 12v battery, doors, larger generator, larger engine, four speed gearbox.

John

Draw yourself a gear split chart and all will be clear.

Formula for road speed is 60 x rpm/tyre revs per kilometre x overall gear ratio

Originally Posted by JDNSW

And the 12v battery, doors, larger generator, larger engine, four speed gearbox.

John

Yeah fair call

The jeep engine is 2.2 litres,60 HP and 105 ft lbs torque as fitted to an MB Willys Jeep. Regards John

Originally Posted by JDNSW

And the 12v battery, doors, larger generator, larger engine, four speed gearbox.

John

Except the Lucas 12V generator is smaller than the Autolite 6V generator.
Aaron

I seem to recollect the 80" having 4.88 diffs? Could be wrong as it's been decades since I had one.