I used the 22re fan clutch. I did this by drilling out the stud holes to a larher diameter. I then used the standard 22re fan shroud
I originally had done the same thing to mine. I posted about it from reply #254 down to about reply #263. Replies # 260 & 261 discuss the clutches:
http://board.marlincrawler.com/index.php?topic=4401.msg42393#msg42393I opted to use a wider 3-core radiator and have never had any heating issues going on 10 years since my conversion.
BTW UtahGuy that 3RZ looks sexy in there
Regards,
BigMike