[bkozlow]

Front lip 3/4", back lip 5/8". Height 5 inches at center, thickness at top center 1/2", sides 2 1/2" at base. Front and rear flat. This is the style on CSX2286 AND CSX 2601. Also you have to decide on whether to run the cabin exhaust exit in the spoiler or not. Early cars spoilers did not have it. CSX-2299 runs the long flat type as the two cars mentioned above run the higher in the middle curved style. Attached with riv-nut type large head screws, end riv-nuts may extend through the lip on the two ends closest to the back, center may also on an all aluminum body car as the originals did.

Bill K