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Edition 47 12-15
12
On-Highway Trucks
FRAME SELECTION GUIDE FOR CT660
Based on Front Axle Load, Desired GVWR and
Wheelbase: Select a Frame from table below. Frame
length varies in roughly two inch increments to accom-
modate many different body sizes. Frames can also be
Reinforced (or Doubled) to carry heavier loads.
Frame Selection
Dimensions
Code
Front
Axles GVWR
Maximum Wheelbase
200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350 360
Not Reinforced
12.25 × 3.375
× 0.375
01CDH
12K <=52K
331" (8400 mm)
13.2K <53.2K
329" (8350 mm)
14-14.6K <=60.6K
280" (7100 mm)
16K <=62K
260" (6600 mm)
18K <=64K 246" (6250 mm)
20K <=85K
234" (5950 mm)
21-22K <=87K
222" (5650 mm)
23K <=88K
215" (5450 mm)
Reinforced
12.0 × 3.25
× 0.25
with 0.25
Outer
Reinforcement
01DAV
01GDL
12K <=52K
360" (9150 mm)
13.2K <=53.2K
360" (9150 mm)
14-14.6K <=60.6K
358" (9100 mm)
16K <=62K
325" (8250 mm)
18K <=64K
299" (7600 mm)
20K <=98K
293" (7450 mm)
21-22K <=100K
276" (7000 mm)
23K <=101K
266" (6750 mm)
Reinforced
12.25 × 3.375
× 0.375
with 0.313
Outer
Reinforcement
01CDH
01GDM
12K <=52K
360" (9150 mm)
13.2K <=53.2K
360" (9150 mm)
14-14.6K <=60.6K
360" (9150 mm)
16K <=62K
360" (9150 mm)
18K <=64K
352" (8950 mm)
20K <=98K
317" (8050 mm)
21-22K <=100K
309" (7850 mm)
23K <=101K
301" (7650 mm)