Gears?

Justin · #1 Tue, May 5th, 2009, 02:00 PM

K...I'm confused. The build sticker on my truck says I have 3.55's, but if i go in to change the gear setting it said I had 3.31. Which one do I trust?

twintips_17 · #2 Tue, May 5th, 2009, 02:23 PM

Quote:

Originally Posted by Justin

K...I'm confused. The build sticker on my truck says I have 3.55's, but if i go in to change the gear setting it said I had 3.31. Which one do I trust?

The sticker on the truck. I belive that all of them start out at 3.31 when you adjust them.

***Jackpine*** · #3 Tue, May 5th, 2009, 04:51 PM

Quote:

Originally Posted by Justin

K...I'm confused. The build sticker on my truck says I have 3.55's, but if i go in to change the gear setting it said I had 3.31. Which one do I trust?

Justin - Twintips was ALMOST right. You DO want to use the Gear Ratio that is shown on the truck's sticker.

The confusing part is, each and every time you open the Custom Options menu, the software in the Gryphon ignores what's in your tunes or in the Vehicle ID section of your PCM and it loads simple "placeholder" values for Gear Ratio AND Tire Size. This means you HAVE to make sure they are BOTH correct if you go into Custom Options. My GR DOES always happen to be correct - at 3.73, but my TS is not. So, during a tuning session, set your GR and TS to the correct values and then program the PCM.

Now, the NEXT time you decide to program the PCM and use Custom Options, scroll to "Load Previous Settings" immediately! This will retrieve and load the previous values for GR and TS, as well as any other options you changed from default values. It's a quick way to get back to where you were the last time you programmed the PCM. Once you've done that, you can go to any individual option and make further changes. Any changes you make will be part of the Previous Settings file the next time you Reload Previous Settings.

Hope this makes a bit of sense.

- Jack

twintips_17 · #4 Tue, May 5th, 2009, 05:00 PM

Thanks for finishing my thoughts Jack.

Thats some great info. I will have to go check that on mine.

Justin · #5 Tue, May 5th, 2009, 08:44 PM

Thanks for the help.

***Jackpine*** · #6 Tue, May 5th, 2009, 08:50 PM

You're both very welcome! This "feature" of the Gryphon has caused me grief for longer than I care to mention. I think I FINALLY understand it though, enough at least to "put into words".

- Jack

***88Racing*** · #7 Wed, May 6th, 2009, 12:15 AM

Quote:

Originally Posted by JackandJanet

You're both very welcome! This "feature" of the Gryphon has caused me grief for longer than I care to mention. I think I FINALLY understand it though, enough at least to "put into words".

- Jack

Glad you beat me to it!
That's odd my place holder for GR is always 3.73.