Cummins/82 C10

[cmann250]

I turn 1500 at 60 and 2000 at 80 with 3.07s, so says math.

If those numbers are locked in O/D, the math is pretty straight forward. Locked in direct would be even easier. I vote the 3.0x that you thought it was before.

[ellis93]

Well I bought the seal and GL5 to heal up the pinion leak,true to the nature of my life I had no time to dig into the rear end to check the gears.
Caleb I checked my tach against a borrowed test tach and it was off some,refigured my tach and the rpms are almost dead on what you said. I've gotta have 3:08s ( chevy's favorite truck gear)

I'd have said the were lower just from the sound of the engine, it makes twice as much racket as the dodges cummins. Is that a p pump characteristic?

Checked the mileage again, not so good this time. Got 21.8 this time. I guess I was mashing harder on it or something.

[dazedandconfused]

I still want to go yo a 3.00 gear or closed. With my 3.25 gear its equivalent to 3.55 with my tire size.

[ellis93]

As is,what kind of mileage are you knocking down Andy? I think I asked before but can't remimber what it was

[dazedandconfused]

I'm at 17-18 now with my fuel system issue and a very loose trans. Its shuddering bad when I stand on it taking off.

[ellis93]

Well the wife and I went to Mobile Al tonight for dinner and loafing around in the 82. Got several WTH looks and one challenge at a red light. Being I had the wife in the truck and not knowing if I'd tear it up,I passed. Then two lights latter the same @ss was revving his OBS Caleb special at me,puking smoke all over my truck......I took it
He'd have wipped me if he wasn't grinding gears in that zf5 ( oh....wait, that's just how they shift )

I might have got him but not without cost.....seems I broke an engine mount. The motor has settled on the pass side and it is throwing some massive vibs out. Dang it I knew better

Now to go look for some poly mounts.

[cmann250]

It was those stickers. Despite straight 4" exhaust, I catch people rolling up on me at stop lights looking for Cummins badges. They don't exist.

You gotta fly under the radar bro

[ellis93]

Nope not the stickers.....it was the noise. That crack head had followed me for awhile before trying me out

[dazedandconfused]

I don't screw with anyone anymore on the street. After getting ran off the road by some Dick because my turd was beating his I said no more.

[cmann250]

I know I have hard time backing down from a challenge, so I go the extra mile to fly under the radar. Who would challenge a dirty old farm truck?

[dazedandconfused]

You have seen mine and they still screw with me.

[cmann250]

Some one must have let the cat out of the bag.

[dazedandconfused]

Ellis are upu running straight pipe or some kind of muffler?

[ellis93]

Straight pipe. Mufflers are for old people

No seriously tho I just don't think that would do any good. The motor alone makes a huge pile of noise,I think there's something up with the timing. It has to be advanced pretty far,it sounds like a 24 valve,I kid you not. Problem with that theory is it was timed with the case pin and that thinger on the pump. That should have it back stock.

[dazedandconfused]

Mine is loud but I run a 4" muffler to help with drone since mine dumps at the ground in front of the axle. I think I need to pull some timing out of mine.