Forum Discussion

Harvard's avatar
Harvard
Explorer
Dec 04, 2020

Interpreting Caster Alignment Specs

Thinking outside the box?

Given: 2011 F53 Caster Spec 3.75 +/-1,75 Degrees

This specifies a range of +2.0 to +5.5 Degrees

Logical Interpretation:

+2.00 Degrees for 100% city driving
+3.75 Degrees for 50% city and 50% highway
+5.50 Degrees for 100% highway driving

NOT +3.75 for all !!!
Class C
  • phil-t's avatar
    phil-t
    Explorer
    Dec 04, 2020
    I had a shop do my 2010 F53. They do a lot of F53 chassis. Talked them beforehand about the handling. They set the caster - 7-3/4 left and 8-1/4 right. Handles like a dream. Mine is the 22,000 GVWR. All the left/right wandering is gone.
  • wolfe10's avatar
    wolfe10
    Explorer
    Dec 04, 2020
    I would go for higher end of spec-- period.

    So, perhaps 5 degrees left side, 5.5 degrees right side (difference to account for road crown)

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