1969 nova questions

[69W314spd]

I've Recently purchased a 69 nova 4 speed car that i believe was a big block four speed car and possibly and L78 originally.

69 69 cortez silver 731 interior, no gauges

Some identifiers the car has are as follows

Correct big block core support

Correct cross member

Single 3/8th fuel line (11427 car not a 6cyl as they also came with single fuel line no return)

ZD code radiator (big block 4sp Radiator)

Correct power brake booster and 69 calipers with single groove rotors which i believe to be correct.

BS Code 12 bolt (3.31 posi) 1207G1 date

Correct heater box outlet.

837 Alt with 8m19 date code Car is April built

block and transmission are out of a 1966 Chevelle EF code (360hp 4 speed)

No paperwork, car was sold new at oaklanddon Chevrolet in Indianapolis according to ncrs and its official build date was 4/16/1969.

My question is about the driveshaft stripe color, i believe that the drive shaft is original to the car and has what i believe to be an orange, blue and white stripe and was curious of what this could mean as i dont have build sheet.

Pics attached