Hello All,
I have been away from a confuser for several days...
I'll try and answer all your questions and concerns.
I already have a Dana 70HD rear end in my truck, and I will change my 4.56 gears to 3.54 when I go diesel, that is as fast as they make for the 70HD.
I will also need an overdrive to cruse at a normal speed.
SO, I can't use my 5 speed spicer because it is not overdrive. I could use the 5 speed spicer from a deuce and a half, they are overdrive. But I want the roadranger.
I probably won't use all the gears unless loaded.
I will use it to pull a trailer in the mountians.
With good insulation in the cab, and a reasonable muffler it won't be very loud.
I won't use an engine mounted air compressor, but an electric one with a 100% duty cycle. It would be a tight squeese to fit the PS pump, AC compressor, and air compressor all on the same side of the engine. The other side has water pump and alternator.
The transmission really does not take that much air, and it's only the one shift when shifting over 5th, or under 6th.
I had a 73 chevy with a 4-53t engine a few months ago, I drove it home from CO with better than 20 MPG, that's 65mph at 2,500 rpm.
I plan to cruse at about 2,000 for best fuel economy and run about 70.
If you look on another thread at the pictures from the Winchester truck show two weekends ago there is a picture or two of my truck and my new engine, they are the last pictures on one of the links.
