avgwarhawk

Sounds like a failing lifter to me. I would pull the valve cover you hear the noise and run the motor at speed. Hopefully the noise will be found in the lifter and or push rod to a lifter. EDIT: Took a second listen. It does sound like a lifter losing oil pressure.

I installed a set of Detroit Eatons on my 54. Ride height is in keeping with factor photos I have seen.

Points and condenser replacement. Careful with the starter fluid spray. Over use can cause problems.

The spacers are a quick fix to the inevitable. Replacing the coils.

As Benjamin said, it is just a coil that runs through the radiator. Pump line in and return line out. Works ok but not like a independent unit. And I concur, heat will kill a transmission. If I remember correctly the early Dyna Flo has a small cooler off the pan.

I would go with old-talk on this as well. The seals over the years lose pliability and crack. NOS rubber products I have purchased crack easily.

This makes perfect sense. I would image then two pieces of rubber could be placed on top and bottom of the current shim as shown in the picture.

Just one question, why was this metal used instead of rubber insulation? Was this an attempt at shimming a body panel to align with the surrounding panels? This looks like a fender that is possibly shimmed up?

Hahaha. But it was a good bid.

That Buick is cool. The Chevy boat is awesome!

Possible the cruise control is losing data vehicle speed sensor thus shutting down?

Check valves in the vacuum lines are functioning?

Driving with confidence on the last video!

Check the vacuum ball is not leaking or lost a line. Note this ball services the cruise control servo. Could be the reason for losing cruise as vacuum is exhausted over a short period of time. It appears to me a vacuum loss is your problem. The question is where. I suspect the vacuum storage ball. See diagram:

Instead of the MAF sensor, take a look at the MAP sensor. Also, inside these transmission are shift solenoids. These cause issues and are replaceable. Also, as much as we think the dealer knows it all some just don't when it comes to transmissions. Have you take it to a good transmission shop? There are several GM bulletins regarding two common problems. #06-07-30-023C...Shudder on Acceleration #PIP4188 Delayed Shifts Harsh Engagement In either case with those two bulletins, the transmission must be disassembled for repair. FP# 24225825 (valve sol 4.265)

I'm posting this since my family did own 3 of these Buick(Japan) Opels. These were great cars with exception of bad rusting issues. All 3 made 100K and beyond. Sometimes I think this is the Buick that Buick does not like talking about.