Quote:
Originally Posted by GreaseMonkey23
thought someone mentioned that 6lug came on the pre 70 trucks.
|
C10 (2WD) and K5/10 (4WD) were 6 lug thru 70. In 71 and newer, only K5/10s had 6 lug wheel, whereas C10s switched to 5 lugs in 71. All Cs and Ks switched to disk brakes after 1970 - that is why there are indeed factory 5 and 6 lug disk brake rotors - it's just that the 6 lug disk brake rotors were all from K5/10s. 6 lug disk brake rotors are available via aftermarket mfgrs for retrofit onto pre-71 C trucks.
EDIT: And I think this is what is on your truck - aftermarket drop spindle/6 lug disk brake retrofit kit. They are made so folks can carry a single spare (6 lug) and not have to swap out their 6 lug rear axles in order to get front disks. There are also 5 lug rear axle kits - which would be a good option if, for example, someone had swapped on 5 lug front disks. Then you could just swap the rear axles and have 5 lugs all around. Anyway, irrelevant, you have 6 lugs, likely aftermarket in the front.