

| Subject: | Re: [Q] Decreasing gear ratio |
| From: | Dave Kautz |
| Date: | Fri, 20 Jan 95 17:29:30 PST |
> > I don't remember seeing this discussed anywhere, so does anyone know > if replacement gears are available for my tranny to lower the revs at > 60 mph? It seems criminal to make that poor engine turn 4000 rpm at 60 > when the torque at 3000 rpm is probably sufficient for the job. It's > nice to have the real low first gear for jeep roads in the mountains, > but in the flats I wind through the gears pretty fast. The ultimate > solution would be a five-speed tranny. Are there any possibilities > here? Or were the German engineers pretty smart when they designed the > factory gearing? > > ..Dave Phillips '69 bus | Internet: phillips@aries.tucson.saic.com > > The calculations we did for the now infamous "wear index" indicate that with stock gearing and stock size tires, the engine in a '69 should be turning 3484 rpm at 60 mph. If your bus has ended up with a gearbox built in 1973 with a numerically higher 4 th gear, the result could be 3781 rpm at 60 mph. The Haynes manual for 1600 buses also talks about something called "mountain gears" which has a numerically higher final drive. Dave Kautz
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