MOPAR things I learned the hard way..

I learned that Mopar should have cast their sb heads with push rod slots instead of holes so that there wouldn't be a pinch.

That lakewood bell housings really could use welded on nuts to attach the starter easier.
That factory Mopar clutch fork brackets are weak flimsy pieces of **** once go beyond a stock clutch, Hayes and McCleod will fold them, you have to make one out of 1/4 steel plate.
Pre 68, maybe even 69 there are fewer body welds on the a bodies and once a 562 hp motor goes in....every body spot weld cracks, doors sag, then crack as well.

741 pinion is stronger than credit given, it's still holding on Yukon gear 3.73

Bulkheads suck, better to wire straight through or use a universal plug harness and cut bulks off and wire it up.
Full groove bearings are great and are all I use nowadays.
Hv pumps are like buying chrome valve covers, of no real necessity.
Hyperutectic pistons get hot, they need oil ...so don't run them tight in anything running over 6- 6500 or if you do...slightly steeping the cross hatch when honing. And if you're running a stroker....do yourself a favor and steeping the cross hatch so it can get the oil film it needs and not scuff.
In the Mopar world going against what a guru says is 'like a crime' to the rest of the mopar community when it comes to chat forums ...lol... Mopar people are either oddly unique and bright... or just odd in a lot of cases.