Ford Econline Super Duty Chassis 450 1998 Series, Owner'S Manual

Page: 69 / 126

Krystal Enterprises
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Ridewell Air Suspension Chart
RIDEWELL SUSPENSION TORQUE CHART
BOLT SIZE LUBRICATED THREADS
1 ½”
1 ¼”
1 ⅛”
1”
1”
⅞”
¾”
¾”
⅝”
*¾”
*½”
HANGER 1,100 FT -LB (1490 N-m)
HANGER 750 FT -LB (1020 N-m)
500 FT -LB (680 N-m)
GRADE 5 360 FT -LB (490 N-m)
GRADE 8 460 FT -LB (625 N-m)
350 FT -LB (475 N-m)
GRADE 5 160 FT -LB (220 N-m)
GRADE 8 190 FT -LB (260 N-m)
100 FT -LB (135 N-m)
50 FT -LB (70 N-m)
25 FT -LB (35 N-m)
*AIR SPRING CONNECTION ONLY
After suspension has been in operation for approxi-
mately 6,000 miles (10,000 KLMS), all fasteners
must be re-tightened to specifi ed torque. Repeat
every 15,000 miles (25,000 KLMS)
DO NOT OVER TORQUE!
Note:
All ½” bolt/nut assemblies join-
ing the Ridewell hangers to the
FORD frame must be torqued
to 120 ft. lbs. (dry) or 90 ft. lbs
(lubricated)
If any bolts are found to be
loose or damaged, replace with
½”-20 SAE GRADE 8 hardware.
This sticker is located on
your chassis suspension.
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