6. COMBINATION WITH CHASSIS FRAME
To be effective, the sub-frame must be securely attached to the chas-
sis frame. “U-bolts”, “mounting brackets”, “locating plates”, etc. are nor-
mally used to connect the sub-frame to the chassis frame (Fig. 14). Never
affix flanges directly to each other by welding or by bolt-nut attachment.
(1) U-bolts
Use of U-bolts, must conform to the following (See Fig.15):
1) Insert a spacer to reduce the possibility of flange deflection. Avoid us-
ing a wooden spacer near the exhaust system.
2) Lock the nuts.
3) Install the U-bolt vertically to the frame.
4) Do not use the bolt in a tapered portion of the frame (where the web
changes in width).
C14
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