E55Greasemonkey

Don't do it. Your highway RPM's will be too high and your 1st gear will become useless due to wheelspin. I had 2.82 in mine and swapped back to stock 2.65. Find another way to make power.

chaseb9

I already don’t hook in first and Im not a 1/4th mile person so hooking in 1st really isn’t a big deal to me. I roll race and do 60-130.

oneill.alx

I've been looking for months myself. You can go 06-10 SRT8 but it will have to be used because MOPAR doesn't make the parts anymore. Tried to reach out to Richmond to see if they had any gathering dust somewhere, nothing. A "decent" pumpkin off eBay will run you 500+ for below 50k miles.

While ordering the TCU from Mk-Ultra Electronics, Tony was telling me you can swap the entire assembly with an early s63/cl63. That's what he did. Stock is 3.06 and same pumpkin design. Unfortunately used prices are worse and new... 3k+. Decided just to service diff with brand new oem parts (inner + outer bearings, ring + pinion, seal, friction washers, and crush sleeve $550) until I can find something more economical. Mk-U will do a gear change for free down the road, nice bonus.

chaseb9

I’ll hopefully find something soon, I looked at the whole read end swap from the s63/cl63 but man they are expensive. I went with the Mk ultra tcu as well and love it. Just needs find these gears so I can start stomping on people on the roads.

oneill.alx

I'd recommend a SGA 150 valve body swap as well. Solid upgrade, IMO. Got mine from VRP which was stupid. Go direct Sound German Automotive

chaseb9

I got solenoids and a shift kit but not the valve body. I’m pretty happy with it rn. It slugs you in gears tho when your in A mode

nemiro

Do you know if it is a HAG215 type of differential? I have one with the 3.06 gears, and very low miles. I have the same ratio in my Chrysler Crossfire w/M113K swap, and 1st gear is utterly useless. I'd be interested in some kind swap arrangement. PM me, maybe we can work it out. I'm 2.5 hours west of you, BTW.

chaseb9

I have an 06 e55 amg, I am not sure how to check for a HAG215 DIFF is there a way to check? I'd love to do a swap.