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5-Speed Auto in a W460

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Johnny Christensen
Posts: 853

Re: 5-Speed Auto in a W460

Post#21 » Fri Feb 20, 2015 12:13 pm

viewtopic.php?f=18&t=2821&start=20

About 1/3 down the page, maybe it helps with the flange?

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vadimivanovich
Posts: 7750

Re: 5-Speed Auto in a W460

Post#22 » Fri Feb 20, 2015 12:37 pm

Thanks man! You nailed it. I've read that post many times but somehow it didn't jump out at me until now. That's the solution - a 722.6-specific output flange. This also means CV-type flange only, which is fine by me.

Mikeyd
Posts: 8

Re: 5-Speed Auto in a W460

Post#23 » Thu Feb 26, 2015 4:05 pm

I am currently in the process of purchasing a 722.605 transmission
202 shifter /linkage
Ole's tcu setup will be my choice of controller
This will be mated up to a AMG 3.6 motor that I am pulling from my c36
Will be updated with new head gasket, chain. Etc
Will get the new coupler and driveshaft
Hopefully it will be up and running by Easter.......
Maybe we can consult on each others progress.

1995 g320

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vadimivanovich
Posts: 7750

Re: 5-Speed Auto in a W460

Post#24 » Thu Feb 26, 2015 8:23 pm

Yes, definitely keep chiming in! Be careful with the 722.605, many applications are pre-2000 which means they will have the old-style bushings and sprags - which were significantly improved. I bought mine from a 2002 C230. Great gear ratios for a G (similar to 5-speed iron box ratios), and the right bell housing. Also, make sure you get the 4-3-2-1 style shifter for Ole's controller.

Cheers

Mikeyd
Posts: 8

Re: 5-Speed Auto in a W460

Post#25 » Sat Feb 28, 2015 3:45 pm

I bought a 2000 c230 compressor tranny
1999 c280 gear selector
Will have the tranny looked over and updated with necessary clutches and such. Apparently the valve body can be drilled out to alleviate flaring in the 3/4 shift? I don't know what the procedure is yet?
Will see if ole can send me the kit already mapped from his brothers g setup? It will be nice to cruise under 3000 rpm at 80mph and get better gas mileage too!

Mike

2Tony
Posts: 6

Re: 5-Speed Auto in a W460

Post#26 » Sat Feb 28, 2015 8:37 pm

I see discussion of this transmission for the 606, but what about the 617 turbo-diesel? I have the automatic transimission out of a 300D in my older G, and it isn't "tall" enough for the highway (67mph seems to be my top speed). Would love to put another automatic in its place, that has an additional "overdrive" gear!
-Tony

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vadimivanovich
Posts: 7750

Re: 5-Speed Auto in a W460

Post#27 » Sat Feb 28, 2015 11:47 pm

A taller auto for the 617... hmmm... bigger tires. Or change ring & pinions. I'm not aware of any MB auto for the 617 with taller gearing. You probably have some version of the 720 trans, which is 1:1 in 4th, just like any manual 4-speed. I currently use a manual 4-speed with that motor and run 35" tires. On the freeway I'm generally at 3K rpm at 65 and 3.5K at 75. Can't make it go much faster than that except downhill. My axles run 4.87:1 ring & pinions.

Hope this helps

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vadimivanovich
Posts: 7750

Re: 5-Speed Auto in a W460

Post#28 » Sat Feb 28, 2015 11:58 pm

Mikeyd, the 3-4 shift flare is not necessarily a trans defect, but more likely a symptom that things are getting sloppy in your clutch stacks. They're set up a bit sloppy in the first place but the MB controller adapts shifts to the clutch wear by delaying shifts and modulating engine power, albeit quite imperceptibly. Ole's controller does not have this feature so you get what's really there.

If you are opening the trans up and swapping clutches, a lot can be done. Mainly, you can tighten the tolerances (some say as much as 50%!) of your stacks and remove spacers so you can add clutches. This may require ordering different spacers and/or snap rings for each stack. This is what I'm dragging my feet on at the moment. Not a big deal, just hate going to the dealer. You shouldn't have to touch the valve body with the engine you're using. If 800 hp maybe.

There are updates to some valve body pistons on earlier models but I wouldn't worry unless you're above 200K on the unit.

Yeah, I'm looking forward to low revs and better mileage too. Keep us posted!

Mikeyd
Posts: 8

Re: 5-Speed Auto in a W460

Post#29 » Fri Mar 06, 2015 8:38 am

Ole shipped out controller. Have everything to convert over except yoke? Might go a different route on this.

Mike

95 g320
Soon to be g3.6 5spd

kmaser
Posts: 104

Re: 5-Speed Auto in a W460

Post#30 » Fri Mar 06, 2015 11:42 am

I'm pretty sure Mick the Digger had custom 8 bolt flanges made to adapt his 722.6 to the W460 drive shaft?

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