Gear Vendors overdrive usage
Is there anyone on this forum using the gear vendors overdrive on a F350 or F450 6.4L PSD to improve fuel economy. If so do you a 4X4 or a 4X2 and what sort of mileage improvement did you see. I saw a F450 listed on a website with a gear vendors overdrive installed and I am just curious of the benefits.
Last edited by gitane59; Jun 28, 2009 at 09:28 PM. Reason: additions




