The most likely answer is the oil pressure control switch (aka oil pressure sending unit). costs around 4 dollars and 5 minutes to replace. It's right behind the distributor cap.
Bad bearings , a whole in the block , or a bad sending unit . Which one sounds most likely ?
what would cause a oil pressure gauge to fluctuate on my 99 Chevy truck silverado i change the sending unit it does it mostly after it warmed up
fuse link
Oil leak and overheating?
Yes.. But it would be cheaper to just buy the whole regulator and replace it.
not enough freon or too much
The same thing happened to my dads 96 Chevy S-10. The transmission was rusted not allowing it to shift. I would have the transmission checked out.
yes, as long as it has the same box syle body like an 84 silverado would have.
it all depends on the body style whether its the same or not
Need more information, Engine size would help. You will need to ask your question again.
it could but you might need to trim the rear a little
Owners of Chevy Silverado's choose to lower their trucks for aesthetic reasons. There are no real performance advantages to a lowered truck, and in fact, if a truck is lowered too much, it can cause problems when driving over uneven terrain.
Low fuel pressure