[84rzv500r]

one more tidbit in gearing on the 71 series diesel swap... the 350 Chevy had a redline of 4500 RPM and a 1:1 5th gear. with 8.25-20 tires (38") and 7.20:1 gears in the axles it would run 55 MPH wound out...

the Detroit redlines at 2250 RPM (its turned up to 2300) so I had to do something to be able to run highway speeds... so in come the 11R22.5 tires at 44" tall and the RTO trans with a 0.87 OD and the Rockwell T-1138 transfer case with its 0.73 OD ratio in High range... (1.72 in Low) Excel spreadsheet says I should get 65 MPH at 2300... I have the option of swapping the the input gears on the trans to make a home brew RTOO but that is down the road than it would put me in the very high end of driveshaft speed.

a 6v-53 would have made a better choice for power plant (RPM and physical dimensions) but I didn't have one of those for free...