Apologies in advance for the fact that this post probably technically belongs in the 73-91 forum, but it is somewhat diesel-specific and I trust the "diesel-hood" more in general with these types of questions: I am getting ready to purchase clutch parts for my setup (to make Rene happy) and need to make sure I'm looking for the right things. Am I correct in the following: Flywheel/pressure plate/clutch disc need to be for the engine application ('91 6.2) Hydro slave and fork need to be for hydro donor ('89 I believe, but can't remember for sure) Does this sound right? The hydro stuff and engine are so close together in years that I don't think I'd run into a problem anyway but just wanted to make sure. Is Perfection Clutch a good brand? I've never heard of them. Looks like there are 2 casting numbers available: 14022675 and 14050525. How do I know which one I need? Is this the casting # on the engine that it's referring to? Any other recommended places to look? I punched in the part # listed on the "Boatload of parts" thread on Napa's website and it brought up two flywheels (link). One is $300 and the other is $600!!! It doesn't say what brand they are and why one is so forkin expensive. I'm tempted to just go with the cheapie one but want to make sure I'm not getting a P.O.S. I'm willing to spend $300 if it is a good investment. Thoughts?