I ran across the discussion below (from June 30, 2007 from CRG Member "bertfam") regarding speedometer cables. Can any give me a good reference where to buy the correct length cable for a 1969 Z with M21?
Does it matter when the car was built during the model year? Mine was built the first week of May.
Rick's First Gen list "quality reproductions" for $31.99, a 62" cable item no. SC-77, or 71" cable item no. SC-78.
Are they still available from GM? If so, what is the new part no. x-ref to the old part numbers, called out in the AIM, page 330, Sec A9, M20, M21 & M22, "4-Speed Trans Speedometer Cable Routing".
This section calls out:
P/N-6454863 Speed CBL ASM (lower) L6 & V8 Base Eng, RPO L65 & LF7, Coupe & Convertible.......what was this cable length?
P/N-6477214 Upper Production Cable 12437 (= sport coupe) W/RPO L34, L35, L48, L78 & LM1.......cable length?
P/N-6477216 Upper Production Cable 12467 (= convertible) W/RPO L34, L35, L48, L78 & LM1.......cable length?
Discussion from June 2007:
"The speedometer cable part number would have been P/N 6477132 (or P/N 3878814) for the base 3 speed, and P/N 6454863 (lower) and P/N 6477129 (upper) for the 4 speed. (The Saginaw 4 speed used a 2 piece cable.)"