Unfortunately, after a few laps the rear axle seized and I snapped the chassis at the rear bushing carriers, being too ham-fisted in loosening it. Spirit spares weren't readily available when they were in business, so now where to get a replacement chassis with them being long gone?
A quick look at the Slot It HRS2 chassis under my Fly Lola T70 and I had a solution.

The stock front body post was retained and the rear was secured by drilling a screw hole into the rear differential detail and using a longer screw with a spacer between the chassis and new mounting hole made from Evergreen styrene tubing.

A bit of trimming of a flat black backing on the differential was also needed to set the chassis ride height just right. The lowering also necessitated making the interior tray shallower so the tray bottom was sawed, replaced with flat black painted cardboard and finished off with the shortened stock driver figure.
Of course, the plastic rear wheel detail had to be retained so they were turned down into inserts and fit into 15 x 8 Slot It aluminum rims shod with Paul Gage tires.



The result if a fine looking and running car, the latter what you'd expect from a Slot It chassis and drivetrain.
Dan
P.S. After the chassis conversion, I discovered the stock chassis is identical to Spirit's earler 936s.