Diablosport Forums

I have your Predator #7135 for my Challenger R/T. I'm going to be changing out the 306 rear gear for the Richmond 355. According to what you say the Predator can do, I should be able to adjust that with the tuner correct?? If so, where do I find that in the tuner and is it pretty easy to do?? Or do I need to down load an update?? I was also wondering if you can confirm that the rear end in the 09 Challenger R/T is the 215mm that I've heard it is. Other wise the Richmond gears won't work. Thanks.

The R/T has the 210mm rear end, and Richmond does make 210 gears. Only the SRTs have the 215.

Thank you. Now all I need is the answer on changing the gear ratio with the Predator.

Can do...

OK...and how can I do that??

mikel wrote:Can do...

I have SRT manual 2009 and I can't change my gear ratio too. My Predator is U7135 rev 9R18.

http://media7.dropshots.com/photos/2537 ... 185650.jpg

It is under quick adjust/axle ratio

mikel wrote:It is under quick adjust/axle ratio

I know where it is. I can't change my gear ratio.

what is your calid, and what revision is on the Predator?

mikel wrote:what is your calid, and what revision is on the Predator?

Dodge Challenger STR8 2009 manual
callid 68004308AF (downgrade from 68004308AG)
U7135 rev 9r18

Thank you for your interest.

This should be fixed in the latest beta crom Johan has posted...

mikel wrote:This should be fixed in the latest beta crom Johan has posted...

That's not good news for me: I'm planning to run with hi-flo catalysators and therefore I will disable rear O2's. Is here another way? Maybe to get 9r17?

If you have to use the latest revision, you will need a custom tune.

I get the fail to change axle ratio also with the u1735 rev9r18 in my 09 r/t six speed. I would like to keep the egr off. If I export the tune I have now and save it as a custom tune, then get the new revison, will I be able to adjust axle ratio in my saved custom tune?

Yes...