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Here's a transmission comparison chart I prepared earlier in Excel but I can't work out how to post the file so here's just a copy/paste: 1 2 3 4 5 6 7 R Torque Rating Diff Ratio 6.3 3.98 2.46 1.58 1.00 na na na 500Nm 2.85 6.9 2.31 1.46 1.00 na na na na 500Nm...

Description of Operation, Auto Trans 722.3 (W4A040) dated 11/85. I wonder if the trans type is stamped, or cast anywhere on the housing? The 40 does indicate Max input torque in Nm, as mentioned earlier in this thread by ctmaher. The ratios are: 1st 3.68 2nd 2.41 3rd 1.44 4th 1 Reverse 5.14 I...

Regarding the 6.3 diff: 2.82:1 or 2.85:1, depending on the exact generation.

With a lower 1st gear and final drive, plus a lighter weight, it's obvious why the 6.3 is quicker. Mark Be careful with changing rear axle ratios. I had a customer here with a Euro 6.9 that was bored out to a 7.3, custom pistons, etc... Anyway, it also had a 3.07:1 rear axle ratio in it and...

Well the goal isn't complex, but the solution certainly is! I want better acceleration than the 6.3 (and many other cars on the road)! Changing the final drive (diff) alone would go a long way towards that goal, but it would also reduce the top speed. I then got thinking about the...

Ratio's 6.3 versus 6.9: 6.3 I 1 : 3.98 II 1 : 2.46 III: 1 : 1.58 IV: 1 : 1.00 6.9 I 1 : 2.31 II 1 : 1.46 III 1 : 1.00

From the same site regarding a 1986 560SEL: 1th gear ratio: 3,87:1 2th gear ratio: 2,25:1 3th gear ratio: 1,44:1 4th gear ratio: 1,00:1 Reverse gear ratio: 5,59:1 Gear Ratio (end): 2,65:1 RPM at 120 km/h (theoretical): 2.550 rpm

Could we have accidently discovered why the stator splines fail?? Or did they grossly understate the input limits? BTW I found another site that said the 600SEL used the 722.621 trans but it's likely there's a lot of inaccurate info out there. A different site gave these ratio figures for the...

Ok here's some info that I've copied from another site where I discussed a transmission upgrade: Mark, 560SEL got the 722.323 and the 420 got a 722.324. It appears the 722.3 transmissions used behind the V8 cars were W4A-040 units, with 040 being the torque rating in mkg. The V12 cars had a...

Here's the link to the other thread but it's not quite what I was looking for: http://www.topklasse.org/forums/showthread.php?t=3034&highlight=transmission+conversion

This one just popped up for anyone interested. Nice colour combo the same as one of mine but in better condition: http://cgi.ebay.com.au/ws/eBayISAPI.dll?ViewItem&item=281387055586&fromMakeTrack=true&ssPageName=VIP:watchlink:top:en I'll upload the pix later!

Any progress or pix?

Well it's not exactly a standard engine but.... http://www.enginelabs.com/news/540ci-buick-makes-955-horsepower-with-help-from-ford-and-dodge/

Not ready for sale yet but here's a pic or two taken a while ago:

Note the differences between this car and my imported champagne 560SEL

And this my friends is the other complete 560 from 'The Collection'. It had a little tap in the back before I found it:

Up for sale and an interesting colour combo: http://www.ebay.com.au/itm/221487594121?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649