4 results found!
#836 - LGTH: 34 15/16" - Flanges: 7 3/4"w. x 5 1/4" dp. 
Mack Advance side frames

The flanges have eleven bolt holes (five are threaded 5/16" NC), there are five 5/16" NC threaded nuts on each side of the rail, and six 3/8" NC threaded holes on the back.

Note:  rails are interchangeable left or right.
#831 - LGTH: 32 1/2" - 24 lbs. Flanges: 7 3/4"w. x 5 1/4" dp. 
Mack Advance side frames

Each flange has eleven bolt holes (five drilled 5/16"), there are two slotted holes on the back of the rail, seven 5/16" NC threaded nuts on the back of the rail, and four 3/8" NC threaded holes on the fan side of the frame.
Note:  frames are not interchangeable. Order left for driver's side and right for passenger's side or pairs.
#830 - Advance Side Frame Lgth: 32 1/16" - 16 lbs. Top Flange 9 1/2" w. X 4 5/8" dp. Bottom Flange 6 3/4" w. x 4 5/8" dp.  
Mack Advance side frames

The top flange has eleven holes (six drilled clearance for 5/16" bolts and 5 threaded 5/16" NC), the bottom flange has nine holes (six drilled clearance for 5/16" bolts and 3 threaded 5/16" NC). There's a total of fourteen 3/8" NC threaded nuts on the channel (five on each side, and four on the flat side of the channel).
Note:   frames are interchangeable.
#8015 - LGTH: 35 1/8" - 18 lbs. Top Flange: 10 3/8"w. x 4 5/8" dp. Bottom Flange: 6"w. x 4 3/16" dp. 
Mack Advance side frames

The top flange has 12 bolt holes, the bottom flange has 9 bolt holes (4 of which are threaded 5/16" NC), and the back of the frame has nine 3/8" NC threaded holes.

Note:  frames are not interchangeable, order left for driver's side or right for passenger's side or pairs.
(left side shown here.)