Gear Splitter
11-16-2005, 07:34 AM
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Gear Splitter
I drive 90% of my annual miles (about 40k) empty on the highway at 84 mph (9 over posted speed) 
. So in an effort to save on fuel I have purchased a propane kit and $3k in tranny upgrades from DTT now I am thinking auxillary overdrive. Anyone running one on the 48re? How much RPM drop and increase in MPG? Any good or bad reports on "Gear Vendor" or "US Gear"?
. So in an effort to save on fuel I have purchased a propane kit and $3k in tranny upgrades from DTT now I am thinking auxillary overdrive. Anyone running one on the 48re? How much RPM drop and increase in MPG? Any good or bad reports on "Gear Vendor" or "US Gear"?
11-16-2005, 08:43 AM
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I think the GV unit is a .70 OD and it should drop your current RPM at any speed by 500 RPMS. I have one on my 87 Ford and it works very well, and really help with fuel mileage. Scotty
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