Strangely enough, the old fan motor in my XKE roadster is almost identical to the fan motor in the Pantera. Both are Lucas. Cool Cat makes a more powerful motor to replace the Lucas for the Jag's and it will fit in the stock brackets with a little work. The Cool Cat motors are pullers so you have to reverse the polarity and the center driver is a bit thicker than the Lucas so you have to retap the fan...but it will fit and will push as much air as the twin Meriah's for about half the price. I have mounted the fans in 2235 with a 12 inch puller from Flexalite. More than enough for a stock motor but can still get warm in stalled traffic after 40 minutes in the summer. This is with a very hot 393 stroker motor. I have ordered the Fluidyne radiator already.