440 Dart cooling fan & shroud

Scoot-
Yes, Schumacher /6 to B/RB mounts. Has aluminum pump housing and a MP water pump. The BeCool radiator sits tight against the core support and sticks out 2-3/4" to 3" from the support. That only leaves 2-1/2" to the face of the WP pulley.
It seems I'm the only one with this little clearance. How thick is the Hayden clutch??
Geo

The Hayden clutch is actually for a mid 90's Jag. The total length is 2.7 in. and it's 1.09 shaft length according to Hayden catalog.