Final drive, NV4500 and Gear Vendors
It would be the .75 of the NV4500 time the .78 of the GV or .585...
Its too bad the GV isn't .8 or .85 for a bigger split in direct and overdrive... as it stands on a NV4500 you get 1:1, then .78:1, then .75:1, then .58:1.. Its better on the NV5600 1:1, .78:1, .73:1, .57:1... But a .85 OD would be great.... On 4500 is would be 1:1, .85:1, .75:1, .64:1, and on a 5600 it would be 1:1, .85:1, .73:1, .62:1...
Here is a chart I made.. its based on a optimum towing rpm of 1600-2900 (which is based on my Cummins 600.. so could be very different for your 93)
If you want the excel spreadsheet let me know, then you can massage it to your truck
Its too bad the GV isn't .8 or .85 for a bigger split in direct and overdrive... as it stands on a NV4500 you get 1:1, then .78:1, then .75:1, then .58:1.. Its better on the NV5600 1:1, .78:1, .73:1, .57:1... But a .85 OD would be great.... On 4500 is would be 1:1, .85:1, .75:1, .64:1, and on a 5600 it would be 1:1, .85:1, .73:1, .62:1...
Here is a chart I made.. its based on a optimum towing rpm of 1600-2900 (which is based on my Cummins 600.. so could be very different for your 93)
If you want the excel spreadsheet let me know, then you can massage it to your truck
Thread
Thread Starter
Forum
Replies
Last Post
93D250
Cummins Conversions
40
Feb 18, 2019 04:26 PM
TX_Diesel
3rd Gen Engine and Drivetrain -> 2003-2007
7
Apr 26, 2007 09:52 PM
JohnInNH
3rd Gen High Performance and Accessories (5.9L Only)
15
Sep 3, 2006 08:22 AM
IH8MYCAT
Performance and Accessories 2nd gen only
8
Mar 7, 2005 08:39 PM







