Based on a thread on the SAAC Forum it seems that the rubber pad found on OE fan shrouds used on 289 HiPo and A/C cars may have been phased out during 66 production, at least for San Jose cars.
To help determine if this is the case, I'd like to ask any of you who have a SJ HiPo or A/C car with the original fan shroud to please comment on whether it has the rubber pad (or at least the staple holes) or not, along with the car's scheduled build date and/or VIN.
Thanks!
Dave