Date registered: Oct 2002
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HIGH AND LOW
OVERdrive? -Get propper tires!
I find top gear (1/1) on my 1/4.9 final ratio, gutless 300GD, to be far to low on original tires.
On 35" tires it is ok on higway and with a turbo it will be "quite nice" (for a gutless 617) on 38" for highway drive.
The real concern is ofcause the downgearing.
The ultralightweight Suzuki LJ is built the same way as G with a separate TC and a simmilary long intermediate drive shaft. The Suzukis are exelent for snowdriving but downgearing the small high rev engines was a problem when no aftermarket parts were availible. One solution was to replace the intermediate driveshaft with a short 4-speed Volvo gearbox that under normal drive is used in 4th.(1/1)
and when needed 1st. is 1/4. (The really bizare thing is that gearbox has a revers as well!.)
You might be wandering about wibrations and rattling? -yes it surely did.
For my use I find the MB309 gearbox with 1st ratio of 1/6,2 solve all my gearing needs. It climbs steeper in HIGH range on 35" than it did before with 230E engine, original Getrag gearbox and original tires in LOW RANGE.
For you in N-America I would recomend you to get into some serious work to find that gearbox in Europe rather than getting into some complex setup of adding an extra low range unless you realy need something EXTREMELY low.
However, as I have previously pointed out, I like the idea of two low range gears when that is commercially availible like in LR and Hilux.
Dave hase made a good point about possible higher torque into the original TC.
This is possible but those extra low gears reduce speed and multiply torque and usually the xtra low range is only used on engine revs from idle to 2000.
More power is not needed and more revs only cause more noise.