About to embark on the alternator upgrade and i seem to have a general understandng of the process. I do have a couple questions as it relates to grounding. #1; I will be replacing the - fenderwell; - to block; - to firewall cylinder head bolt. Do I need to replace - to alternator and starter with the same guage (my case 4AWG)? #2, should I re-do the existing connections for the smaller guage grounds going to the block from the wire loom? #3, the two wires that connect to the alternator (I believe alternator and injectors) should they stay connected to the alternator or redirect to the PDC? #4, and my final question with replacing the alternator positive wire (black) with an ANL fused run from the battery to the alternator should I remove the 60 amp fuse in the PDC? Does that fuse support any other device. Thanks for all the write-ups very helpful.

1994 Jeep Cherokee Country