Cross platform Differential Ring gear options from LX/SRT-8 land..
Seems like the TCM Control for gear ratio is set by the FCM in the LX cars. Basically the FCM sends a new value to the TCM for the control bit and it remembers that even if it's moved to another car. What this leads me to beleive is that if you take an AMG TCM, plug it into an LX car, and use a predator to quick adjust that bit without updating the programming, only that bit should change, then you could put it back into your amg and all should be happy.
I happen to have my fathers 300c to be able to try this. My next test will be to put my AMG TCM into the 300c and see if it is recognized. If that works, then I need to buy a predator and do some testing. I actually think this is going to be the best way to do this.
Stay tuned...
Can anybody confirm this?
Dodge cars which contain many of the same parts as our cars. They do call out some companies that make axles for the Dodges using the 09 and up Getrag 226mm rear end.
Heck the easy answer my be the ford 9" retrofit kit they talk about in the article
Interestingly it looks like the halfshafts on LX cars look mighty similar to the AMG ones too. If the turn out to be the same there are up to 1500hp+ rated axles available for the LXcars from DSS and other vendors.
I hope are american cousins are that accomodating.
Pete
The Best of Mercedes & AMG
I hope are american cousins are that accomodating.
Pete
how about the axle flange that bolts to the half shafts and inserts into the pumkin? i've twisted one of those off in the diff also.
Interestingly it looks like the halfshafts on LX cars look mighty similar to the AMG ones too. If the turn out to be the same there are up to 1500hp+ rated axles available for the LXcars from DSS and other vendors.
I hope are american cousins are that accomodating.
Pete
http://cgi.ebay.com/ebaymotors/06-08...Q5fAccessories
Or you can keep an eye on http://car-part.com and search for a 2009 Challanger, you may be surprised what you find.....like a complete rear axle with a 3.06 ratio for $1000
If you want new:
http://www.modernmuscleperformance.c.../5038293ad.htm
I just spoke to Dave, the owner of ModernMusclePerformance and he is willing to work with someone to see what can be retrofit. So...... if there is anybody out in the area of Martinsville Virginia get over there and have him take a look.
Last edited by Petej; Mar 15, 2011 at 01:38 PM.
http://cgi.ebay.com/ebaymotors/06-08...Q5fAccessories
Or you can keep an eye on http://car-part.com and search for a 2009 Challanger, you may be surprised what you find.....like a complete rear axle with a 3.06 ratio for $1000
If you want new:
http://www.modernmuscleperformance.c.../5038293ad.htm
I just spoke to Dave, the owner of ModernMusclePerformance and he is willing to work with someone to see what can be retrofit. So...... if there is anybody out in the area of Martinsville Virginia get over there and have him take a look.
The main reason the LX guys are moving to getrags as they come with LSD's from the factory and are slightly stonger as oppose M215 in SRTs that require a quaife or wavetrac LSD. Also the cost as a 226 whole diff is less than a quaife.
This is to our benefit as I just picked up a low milage M215 with a 3.06 from a Challenger for $400 shipped.
I am not positive, but I think 03's had a 210mm diff too. That might be why you popped a few. The DSS Axles are complete with hardened shaft splines on both ends of the shaft and super beefy CV's with M300 shafts. Complete new pieces end to end.Not too bad cost too. $1200 gets you a set that will go a long way for piece of mind.
Anyhow, One step at a time. Let me get the diff sorted first!
Anyhow, One step at a time. Let me get the diff sorted first!


I have been looking at differentials, and might be able to snag one locally for $500. It is a 3.06, but its a start! Might also be able to snag the TCM for another $100.
From what I gather - I might have a 210mm differential, which would mean that I would have to swap axles if I want to move to a 215, correct? Or would the unit out of the SRT just bolt straight in to my existing rear end?
If this might be as simple as a bolt it, I might try it this next week to see what happens!
You need to get new pinion nut, front and rear seal, crush washer, bearing and axle seals at a minimum. Also a good Idea to replace axle bearings and races. Install parts are like $500 plus labor to do it. OH, then Jerry has to tune your TCM.I have most of those parts, so I am still comitted to doing this, just going to wait for better weather.

What gear did you end up with, a 3.06 and since I have an 06, I think I am in business!!!






