i have the same problem with the 85 i got

if i took it to 4500 it would shift but i wont drive it again like that

i looked at the switch on the floor and its not there, ill look harder


havent really checked anything else yet, working on my other 1 first

tho, the seller told me he took it for a drive before we picked it up so who knows, we paid $500 for it and over half the parts are new, i wonder why it was so cheap

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1985 300D - 599,xxxk - blue interior #265 Monark Nozzle, AL129X, 15" Ronals, Gen II Big Brakes hunting
1985 300D - 491,xxxk - in prog-{A-A IC, 3" exhaust, psi\pyro, 28*BTDC, Hella Euros, IP Limiter removal
1985 300TD - 783,xxxk - parts car,used new engine with ALDA cap inplace
1987 Kenworth T-600 8LL 425 CAT Mech. - 6,000,000+k - DEI exhaust wrap, punched through resonators, 1 recent rebuild,