1996 Chevy c1500 leaking and dropping 10 mm bolts

[sewlow]

I've used this stuff before. Saved a lot of time.

https://tracerproducts.com/multi-colored-fluid-dye-uv-leak-detection-kit/

No idea of the cost for the kit. OldFart disease + it was a long time ago.
Apparently, these guys are the distributors close to you.


W. W. Grainger, Inc.
1021 Charlotte Ave,
Nashville, TN, 37203.
(615) 255-2012

 

[Erik the Awful]

Pic #1, that's a droplet of oil collecting under your drain plug. Might be oil pan bolts, might be the drain plug
Pic #2, that's coolant droplets hanging off your transmission cooler lines
Pics #3 & #5 lead me to believe your crank seal is leaking

You have more than one issue.

 

[victor II]

In my experience gaskets collapse over time. Lock washers break too. I replaced all of my oil pan, trans pan and rear end cover bolts with new grade 8 stuff several years ago when one snapped. I also go under the truck now and then with a 1/4” drive socket set and rag and wipe where necessary and snug ‘em up. I have a little drip here and there but not bad for an ‘88 that’s never been apart. Also check the oil pan drain bolt. I use the neoprene/metal washer gasket and it’s good to snug that up too. My 2 cents.