Gear Ratio ???

[gregg72340]

Originally Posted by C-10 simplex

1) i did not read carefully---you are referring to the oldsmoboggie diesel, not the 6.2?
You got, get this----2.76 standard code HC2, 3.08 would be code HE3, and if 3.40 then code HE4, not sure if posi also comes with HE4 These are very strange ratios.

i'm not sure if these are dependent on GVWR's and the early diesel trucks had a crapload of them.

Would it be out of the question to take the cover off and physically count the teeth? The oil could probably use a changing anyways.




2) To me just banging thru 3 gears is fun. But yes, if you wanted better acceleration then maybe 4.11 would be better but then mpg might suffer.

3) i can't make any further "recommendations" for rear end ratios (esp when coupled with 4sp) because i'm not really qualified to----i'm trying to figure out my own situation as well.

i do, however, feel that riding a 10sp bike can be very educational----general consensus is that a taller ratio would take less "energy" to turn, but this is often not the case.

Yup its an Oldsmoboggle diesel mess, but hey it was free so its worth at least a look, Im gonna have to take the cover off it and see what it is in the spring, just was curious if there was some set gear for it, I just got it 3 weeks ago and its buried in 18 inches of snow right now so its more a curiosity than anything right now, but hey hopefully its at least better than the 2.67 in the truck now .....