A SERVICE OF

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3
DIMENSIONS
Peterbilt Motors Company 3- 24
TABLE 3-4. Front Frame Height “A” - SBFA
SBFA SUSPENSION
SPACER
(mm)
LIGHT (in.)
LOADED (in.)
12,000 lbs.
TAPERLEAF
SBFA
30
9.7
8.5
40
10.1
8.9
50
10.5
9.3
60
10.9
9.7
70
11.3
10.1
80
11.7
10.5
13,200 lbs.
TAPERLEAF
SBFA
30
9.8
8.5
40
10.2
8.9
50
10.6
9.3
60
11
9.7
70
11.4
10.1
80
11.8
10.5
14,600 lbs.
TAPERLEAF
SBFA
30
10.1
8.5
40
10.5
8.9
50
10.9
9.3
60
11.3
9.7
70
11.7
10.1
80
12.1
10.5
16,000 lbs.
TAPERLEAF
SBFA
30 3
11.4
9.5
40 3
11.8
9.9
50
12.2
10.3
60
12.6
10.7
70
13
11.1
80
13.4
11.5
18,000-20,000
1
TAPERLEAF
SBFA
50
11.9
10
60
12.3
10.4
70
12.7
10.8
80
13.1
11.2
22,000 - 24,000
lbs.
2
TAPERLEAF
SBFA
OMIT
12.3
9.4
30
13.4
10.5
40
13.8
10.9
50
14.2
11.3
60
14.6
11.7
70
15
12.1
80
15.4
12.5
NOTES:
1) Shown with 20K load for laden dim. Add 0.3" to laden dim. if 18K load. S
2) Shown with 23K load for laden dim. Add 0.1" to laden dim. if 22K load. Subtract 0.1" from laden dim. if 24K load.
3) 16K springs with 12K to 14.6K axle minimum spacer block is 30 mm. With 16K springs and 20K axle minimum
spacer block is 50 mm.
Note: Standard 3-1/2" drop axle heights shown, for 5" drop axles, subtract an additional 1-1/2".
Spacer Blocks are used by Engineering to obtain level frame and are not options.
"A" dimension shown is to bottom of frame rail. Add frame rail height for frame height.