Oil tank fit, /6 conversion Options

[930cabman]

How many guys have done the /6 conversion and had the tank cut outs fit correctly with a new tank?

can we "assume" all inner fender stampings are identical, but maybe not?

I have two new welded aluminum tanks from different suppliers, neither would fit into the location as supplied. I cut 3/8" from the vent pipe to get one of these into the correct area. Then I proceeded to drill the mounting holes and followed with the hole saws.
Once again, I assumed with all of the new penetrations centered in their respective stamped recesses all would be correct.

Not, the oil filter console is off center 1/4" and the oil fill stub is offlocation by 3/16"

Is this a common issue?

One of the vendors when contacted claim "We typically cut all the holes a little large, then float the tank &filter console into place"

Sounds hokey to me.

[live free & drive]

McMark always said do not use hole saws - scribe a line and sneak up on it while you can see the relevant tank port behind your internally circumscribed removed metal.





These are some raw measurement supposedly for the DWD tank, but I think it had the same fidelity as the original:



The proper hole diameters to scribe:



The template to be scaled and printed at 8.5" x 11"