Just a question for all the members who own a 420SEL: What are the speeds at which the transmission shifts if you step on the accelerator all the way to the floor from a stop? I put a 1986 420SEL transmission in my '84 Euro 500SEL and when I step on the accelerator all the way to the floor from a standstill point, it starts out fast but then once it gets to around 20-25mph it shifts and lots of the power goes with that shift, then it crawls up to the higher speeds. The car thus doesn't take off as fast as I anticipated. Just checking to see if this is normal from that transmission. Thanks

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1999 Mercedes-Benz S600, 103K miles - garage queen
1988 Mercedes-Benz 560SEL, 89K miles - daily driver
2007 Hyundai Sonata Limited, 31K - daily driver