Welcome aboard!
Your VIN # is 1LC751D97ED701017
Position 1, 2 & 3 = 1LC = All Sunlines from 1981.5 to 2007
Position 4 = 7 = Truck Camper
Position 5 = S = Used on all Sunlines, except Advancer is A (You say this number is a 5, is actually an S)
Position 6 = 1 = Used on all until mid 90's when was changed to a 2, 3 = Que
Position 7 = D = Rough Length 7 Feet (on Truck Camper would be measured at bottom of camper that sits in truck bed)
Position 8 = 9 = No Axle?
Position 9 = 7 = Check digit, no significance
Position 10 = E = 1984
Position 11 = D = Manufactured Denver, Pennsylvania Plant
Position 12 & 13 = 70 = Rough length, should conform to Position 7
Position 14, 15, 16 & 17 = 1017 = Production sequence in the model year, ie, your Truck Camper was the 1017th Sunline item built by the company in model year 1984.
See Sunline Brochure with information about your 1984 C750 Truck Camper at Files, Sunline Brochures, 1984
http://www.sunlineclub.com/forums/do.../ec_tmp/84.pdf
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