I have recently become the steward of the family's 1969 Lyman 22' sleeper. It is powered by Crusader Challenger model RH 210, serial #15449. I can not find any information, parts breakdown, owner's or service manuals for this model. It is very similar to the model 220 based on the Chevy 305 block. It is different in the ignition system, the 210 uses Delco single point that hag the distributor cap with the window to adjust dwell. I am concerned about a formed hose that connects the transmission oil cooler to the thermostat housing. It turns 90 degrees and reduces it's diameter. It is also 48 years old. I would either like to find a replacement hose or install the model 220 transmission oil cooler that uses straight hose. Any help or information on the 210 model or the oil cooler swap would be greatly appreciated.