There is a line-mark sa dulo ng front bolts (thread side), sa Rear Control Arms and Strut Bars ng Innova. Only the front-side bolts ang meron line-marks.
The line-marks vary in positions in different units, looks like there is no standard fixed position. Some are in the 2 o'clock for the Strut Bar and 3 o'clock on the Control Arm Bar. Magkaiba din po sa left and right side .
I was thingking that these front bolts with the line-marks are centric bolts, meaning the camber or caster of the rear Innova suspension can be mildly adjustment for the correct "thrust angle" of the rear tires , during a 4-Wheel Wheel Alignment process. But usually, the rear alignments are not really adjusted or done by Servitek, etc.
Does anyone know the purpose of why Toyota placed line-marks as in dicators on these bolts? It can be seen if one looks under the rear wheelwells of our Innova.