Have an 85 and bought a new oil pan and gasket. Should I replace the original bolts for the pan, and where can I get these. Allpartsexpress is out of them!

Generic socket head cap screws/washers will work. They are typically available at hardware stores and home improvement stores.

If you are speaking of the small Oil Pan and the bolts you have are OK I see no reason not to reuse them.
Some engines call for the Cylinder Head Bolts and may be the Main Bearing and Connecting Rod Bolts but as far as I know none call for the replacement of Oil Pan bolts.
Also regular hardware stores carry some Metric bolts and Allen Head Bolts. When replacing try to match the "grade" stamped on the bolt head. Do an internet search for the Metric Bolt grading system.
For Allen Heads I would not use less than what is the equivalent to an American (SAE) grade 5.

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84 300D, 82 Volvo 244Gl Diesel

Yes, no need to replace.

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine

Just make sure you clean them well before you stick the socket in. Word of the wise, get an allen socket set and a 3/8" drill adapter. Crack all the bolts then use a cordless drill to pull them off. Set the cordless drill at the lowest torque setting when bolting back in and then finish off with torque wrench.

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1995 E420 Schwarz
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