Just took a look at my thermostat housing. I was off a bit on my recollection. There are 2 bolts on the passenger side of the housing, one of which is a blind hole - the one closest to the timing cover. The third hole is on the driver's side (left) of the vehicle. The two thru-holes can be drilled out and the bolts run through from the bottom, then placing nuts on the topside. There is sufficient room on top to get a hold of the nuts with an open-end wrench or a thin-walled socket. As for the blind hole, it can be rethreaded with a helicoil insert or possibly retapped to a slightly larger size thread. I just checked to see if the helicoil inserts come in small metric sizes. They do. M6 and M8 threads are in the product line. Here's a link to the product in the Grainger catalog.

Hope that helps... <img src="/forums/images/graemlins/patriot.gif" alt="" />

1997 Sportage 4x4, auto-trans, Warn manual hubs, 4" UPYOURKIA front lift, TJ 106AA rear springs, 2-5/8" body lift, 31x10.50 treads, SmittyBilt SRC front and XRC rear bumper, swing-out tire mount, OBX LSD front diff, Track Finder rear locker, 5.38 R&Ps and... really crappy gas mileage! <img src="/forums/images/graemlins/shiner.gif" alt="" />