Gear Ratio Affect on Converter Stall Speed
09-26-2011, 01:28 PM
#11
Originally Posted by silver-mod-o
Do 4.30's IMO
The engine/trans will translate a taller (lower numerically) gear ratio as more load on initial take off and the converter will flash a bit more to do the same amount of work, dropping the ratio (higher numerically) lessens the "load" on the engine/trans and the converter will not have to flash quite as much to move the truck the same amount....
It's very similar to the truck being loaded vs unloaded or maybe even with a small trailer behind it, depending on the gear difference.
The engine/trans will translate a taller (lower numerically) gear ratio as more load on initial take off and the converter will flash a bit more to do the same amount of work, dropping the ratio (higher numerically) lessens the "load" on the engine/trans and the converter will not have to flash quite as much to move the truck the same amount....
It's very similar to the truck being loaded vs unloaded or maybe even with a small trailer behind it, depending on the gear difference.
I'm not going any higher than 4.10 though, although 4.30's would be nice considering that my tires are somewhere between 30-31" tall. The truck's still my dd, and I'm hoping that things will get better financially and I can get this rig fixed up and start taking some trips to see my buddy up in Mass...lotta highway runnin.
I dunno, maybe if I pull the front diff apart and the 3.73's are in good shape I'll just roll with em, we'll see when the time comes...sharpshooter has a set of factory 3.73's for me if I need em...
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