Hey folks, sorry but I was getting lost on my forum searches
so here is the question:

Can I use a 1984 300D turbo's speedometer on a 1983 240D?

First guess is it will be way off because of engine speeds and gear ratios...
Is there a simple way to adjust or conversion part to include and make this work close to accurate??

Please advise

__________________
1990 300D 2.5Turbo, two tank WVO, daily driver 300,911
1992 E300 gaser, 150k. Parts only, For Sale

[B]1984 300TD Euro 4speed Sold
1977 300D Elsbett SVO single tank Sold
1981 300TD "Silver bullet" 285k ran B100 Sold
1981-5 300D x 5 cars stripped and reused, parts for sale

Other toys:
1995 Dodge 2500 Cummins 12V P7100 Bosch mechanical pump with 2 tank veggieconversion kit, only 120k!
1959 Cadillac Dad's legacy, needs finishing