Dynojet 424xLC2: Installation Guide - Manual (Page 177)

D-5
B R I D G E E X T E N S I O N A S S E M B L Y
Bridge Extension Installation
Version 1 Above Ground Model 424x/424xLC
2
Automotive Dynamometer Installation Guide
7 Secure the two support arms to the brackets using two 1/2 x 1.5-inch bolts, 
two 1/2-inch lock washers, and two 1/2-inch nuts each
Figure D-4: Secure the Support Arms
A 564 D
brackets
support arm
bracket
bracket
support arm