The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Measuring Castor on I-beam?

yossarian19 · 01-17-2015, 01:37 PM

I've got no center-return on the front end. I've got new (and greased) kingpins, bearings, brakes, tie rod ends (drag link, too) and a decent-if-leaky rebuild power steering box, good stiff shocks & new spring bushings (old shackles). No damper. Stability is OK but not great.
So, I'm thinking "Add caster"
My thinking is that I can hang a plumb bob off the top of the kingpin and carefully measure distance between bottom of kingpin and the string, record this measurement and math it out to find the castor angle. Make sense?

01-17-2015, 01:37 PM	#1
yossarian19 Registered User Join Date: Sep 2011 Location: Nevada City, CA Posts: 908	Measuring Castor on I-beam? I've got no center-return on the front end. I've got new (and greased) kingpins, bearings, brakes, tie rod ends (drag link, too) and a decent-if-leaky rebuild power steering box, good stiff shocks & new spring bushings (old shackles). No damper. Stability is OK but not great. So, I'm thinking "Add caster" My thinking is that I can hang a plumb bob off the top of the kingpin and carefully measure distance between bottom of kingpin and the string, record this measurement and math it out to find the castor angle. Make sense? __________________ "Over my head" 1957 Chevy 3200, big rear window & 6 lug. Front disc, power steering, Vortec 4.8 / 4L60E swap, hydro boost brakes & patina.