Originally posted by Spin-Planet:

[...]I have trouble starting uphill when I stop. I stall the engine. Not sure if the gearbox is the problem, but I didn't have problems with it before.[...]FYI: I use G-27

If you're selecting a lower ratio differential then yes, theoretically you're going to have a little more difficulty taking off. That said, I haven't ever encountered any practical difficulties myself, with the exception of uphill starts.

With the 18 speed box there are two 'crawler' gears below 1st gear (1L). These are labelled Lo-Lo and Lo-Hi. Lo-Lo is quite a high ratio at 14.4:1 while Lo-Hi is a little lower at 12.29:1. These are very low gears ideally suited for troublesome uphill starts or if you're having difficulty on level starts with heavy loads etc. You must be in low-range to have access to these and they switch over in response to the splitter selector switch (selector 2).

I'm using a G27 also, the two crawl gears are at the #2 gear slot (leftmost & down).
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Originally posted by Spin-Planet:

It's like the clutch just grip suddenly now instead of more smooth.

Hmmm, the gearbox definitions have no control over clutch operation, that's defined in a different file altogether (ie. /def/vehicle/physics.sii) which this mod doesn't touch.