BRAND NEW SOUTHWEST SPEED ALUMINUM DRIVESHAFT 28" CENTER OF U-JOINT TO CENTER OF U-JOINT 3" IN DIAMETER LIGHTWEIGHT ALUMINUM CONSTRUCTION WEIGHS 40% LESS THAN STEEL PRECISION BALANCED EACH SHAFT INCLUDES: NEW SLIP YOKE & NEW 1310 SERIES (1 1/16" X 3 7/32") U-JOINTS #699-780 LENGTH IS MEASURED CENTER OF U-JOINT TO CENTER OF U-JOINT, SHOWN IN THE IMAGE BELOW: IF YOUR OLD DRIVESHAFT ISN'T AVAILABLE, OR THIS SHAFT WILL BE INSTALLED IN A NEW CAR, YOU CAN USE THE "A" MEASUREMENT SHOWN IN THE IMAGE BELOW: THIS MEASUREMENT MUST BE TAKEN WITH THE CAR AT RIDE HEIGHT.***IF YOU USE THE "A" DIMENSION, MAKE SURE TO LET US KNOW WHEN ORDERING, AS THIS MEASUREMENT WILL HAVE TO BE CONVERTED TO THE CENTER-TO-CENTER LENGTH WE HAVE SEVERAL OTHER YOKES TO FIT NUMEROUS TRANSMISSIONS, AS WELL AS A NUMBER OF CONVERSION U-JOINTS TO CONVERT THESE 1310 SHAFTS TO OTHER SERIES ALUMINUM DRIVESHAFTS ON CARS THAT REGULARLY RUN ON 3 WHEELS MUST HAVE THE YOKE CLEARANCED FOR PROPER TRAVEL OR THE DRIVESHAFT WILL BE DAMAGED
