Not trying to be negative, but you indicated that at some point you expected to throw in the towel on the truck in a couple of years. This would make sense if you wind up spending more on the repairs than the truck is worth...to you, at least. It's a pretty simple calculus. I love my 97, for instance, and it doesn't owe me a cent. But, at some point, I anticipate that any repairs that I make will not be worth the utility I get out of the truck; if one is dropping 2k a month to keep it running, it may be more cost-effective to consider other alternatives.
In my situation, once the realized utility of my truck becomes less than the money I spend to keep it running, then I will sell the parts I find superfluous and keep the parts I have to use for my other 2 trucks. This maximizes value, and as a not-rich-man, this is good. At this point, I feel that I will be comfortable doing the clutch on this truck, cost--idk---350? (That's me doing labor), and maybe throwing the occasional brake pads on. Anything else major (> idk. $80?) will cause the retirement of my truck, as I don't think that I will realize much of a benefit from blowing a couple hundred bucks on it, just to have something else go next month. She has almost 400k on her.
Wrist pin knock does not ring thru the entire block the way a big end knock does, by virtue of the degree of separation gained from the impact energy having to work its way from the connecting rod journal, up thru the crankshaft to the big end journal. The knock loses a lot of its acoustic energy that way. It sounds like the difference between a snare drum and a floor tom, but more subtle.
I had a cop write me a ticket for $80 for changing my oil in the street in front of my apartment lol. I feel you on that. I didn't dump it in the street, mind you; it went right to the recycling center in a jug. If you don't have the facilities to do such things, it often isn't worth it to try lol
-be me, bad transmission
-save money by removing transmission myself
-throw out back horribly because I tried to do it on jackstands, and because I forgot I am not 23 anymore
-put parts back on and send to trans shop, throw back out again. Chiropractor on vacation.
Good times!!!