Sand and grit accumulates around the gasket interface of the plenum over time and can get into the gaskets when you loosen the screws and raise the plenum - may or may not prevent a perfect seal when tightening it back down. You will need to loosen the screws enough to raise the plenum up a little - I’m guessing 1/4 to 1/2”, maybe more, to be able to get the two housing back screws out.
The plenum gaskets are silicone and should be OK to re-use.
Ideally, you would remove
the plenum and clean the grit off the lower intake and underside of the plenum to make sure it doesn’t get into the gasket area, and replace the gaskets - very inexpensive. But if you just raise it a little without removing and cleaning and without new gaskets, you might
I hate to keep adding more concern and increasing the scope of this job, but the aftermarket replacements for this part have a tendency to come apart in a year or two. If you plan to keep the car more than a year or so, it would be best to get the redesigned part from the dealer along with new outlet pipe (purchased as a single Chrysler part number). The re-designed part has the bleeder part welded into the metal pipe instead of molded into the plastic outlet housing - it eliminates the most common failure mode of the housing, and, again, the OEM housing is made to last a good bit longer than the aftermarket part of older design and generally overall inferior quality.
Search this on eBay: “(chrysler, dodge) (05017183, 5017183)”
This looks like the best price, and is the OEM part, seller has 100% rating: https://www.ebay.com/itm/CHRYSLER-OE...YAAOSwA4Va2ufS
(ignore the fact that the sketch shows the bleeder in the housing and not on the tube - the sketch is from the Chrysler parts system, and they didn’t update the sketch when they redesigned the housing and tube - and that does include the housing *and* the metal tube)
I haven’t checked retail dealer price on it lately, but probably well north of $100.
So - if you’re not going to keep it for more than a year, just raise the plenum a little and throw the aftermarket part in there, and the plenum will probably seal OK (cross fingers). But if you plan to keep the car, I’d bite the bullet and get new plenum gaskets, and get the OEM housing and pipe from eBay - total parts cost well under $100 - you just won’t have it back on the road today. If you go with aftermarket housing, chances are high that somebody
will be replacing it again in 2 years or less.