as the subject says.... is the K9800 used in a lh2.0? and the K10042 from then on?

... with as-delivered stock size tires & wheels. Sedan tire is supposed to be a little taller I guess. In my limited experience, I've only seen them come this way—wagon vs. sedan.
--
Bruce Young,
'93 940-NA (current), '80 GLE V8 (Sold), '86 240dl, '85 244 ti, '83 245t
'76 244 (R.I.P at 255k), 73 142 (98K), '71 144 (ex circle track car)
Used '70 144 from '78 to '92, New 144 from '67 to '78, Used '62 122 from '63 to '67

You're right about the appliication, but it's the wagon that has the larger diameter tires.
--
1991 245, 61k miles, looking for a 5 speed 92-93 245 cheap.

And wouldn't the larger tires mean a lower number of rppm's?
--
744-16v,745-16v,242Turbo.245DLT

Yes it would. I was just replying to the previous post that said the sedan tires are taller, which was incorrect. Buying tires for a 240 sedan is easy, buying the right size tires for a 240 wagon is impossible in the US.
--
1991 245, 61k miles, looking for a 5 speed 92-93 245 cheap.

k9800, etc. only refers to the ratio of the speedo internals, nothing to do with which fuel system, car, etc. use the wrong ratio in the car and the speed will be off-.98/1 to 1.0042/1. you do the math. good luck, chuck.