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post #1 of 8 (permalink) Old 04-01-2014, 04:29 PM Thread Starter
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Axel Re-gearing

Anyone managed to do re-gearing over 3.73? any possible info?

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post #2 of 8 (permalink) Old 04-01-2014, 07:45 PM
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I re-geared a v6 from 3.07's to 3.73's. I was going to order the 4.10's for my Jeep but decided I wanted to buy a newer Hemi XK. I'll re-gear that one with some 35 inch MT/Rs

Once the gears are installed you need a hypertech programmer to program the computer for the new gear ratio. They have 4.10's out now front and rear for our XK's




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #3 of 8 (permalink) Old 04-01-2014, 09:57 PM Thread Starter
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Quote:
Originally Posted by 07JeepXK View Post
I re-geared a v6 from 3.07's to 3.73's. I was going to order the 4.10's for my Jeep but decided I wanted to buy a newer Hemi XK. I'll re-gear that one with some 35 inch MT/Rs

Once the gears are installed you need a hypertech programmer to program the computer for the new gear ratio. They have 4.10's out now front and rear for our XK's
That is a good news. I already have the superchips programmer so I can do what hypertech does.

Who makes the gears ? Any info where I can buy them ?

No problems with the ELSD diffs?

Second Jeep Commander, Current
2007 XH (International model), Green Metallic, Ltd, 5.7L HEMI, Quadra-Drive II
Spidertax 1.5" wheel spacer, K&N replacement filter
OME 2" Lift kit


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2007 XH (International model), Light Graystone Pearl, Sport , 4.7L Quadra-Trac II.





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post #4 of 8 (permalink) Old 04-04-2014, 06:19 PM
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Nitro gear makes the 4.10's and if I recall correctly they were tested on a QD II. I'm almost postitive the Flashpaq won't work, you need a hypertech.




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #5 of 8 (permalink) Old 04-09-2014, 04:36 PM Thread Starter
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Quote:
Originally Posted by 07JeepXK View Post
Nitro gear makes the 4.10's and if I recall correctly they were tested on a QD II. I'm almost postitive the Flashpaq won't work, you need a hypertech.
I was playing with the flashpaq and there is an option to change the ratio for the diffs .. isn't that what is needed to program?

Second Jeep Commander, Current
2007 XH (International model), Green Metallic, Ltd, 5.7L HEMI, Quadra-Drive II
Spidertax 1.5" wheel spacer, K&N replacement filter
OME 2" Lift kit


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post #6 of 8 (permalink) Old 04-09-2014, 08:21 PM
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I know it's an option on the flashpaq but I'm not positive it actually works properly to reprogram the computer. There have been several other tunes that are supposed to be able to correct the gear ratio and they didn't work




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #7 of 8 (permalink) Old 04-10-2014, 10:28 AM
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It's worth trying the Flashpaq first before spending the cash for something else.

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post #8 of 8 (permalink) Old 04-10-2014, 08:11 PM
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Like I said I'm pretty sure the flashpaq has been tried in the past and didn't work. But of course you would still try it but plan on purchasing a hypertech




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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