Measuring caster on a d60 - Pirate4x4.Com : 4x4 and Off-Road Forum

Coors · 03-01-2011, 08:06 PM

getting ready to swap a king pin 60 into my bronco, and wanting to get the caster somewhere close.. LOL

I am going to run stock radius arms, so i know that i can get degreed bushing to get it dialed in, but I just need a starting point.

My question is.................. Is measuring across the top of the upper king pin a good measurement? I read a few places where guys described using the upper king pin bolts as a reference point. How does this sound?

trkklr77 · 03-01-2011, 08:25 PM

use the tin cap if possible.

you can also remove the grease zirk from the lower cap and tha twill give you a good flat surface as well.

Coors · 03-01-2011, 08:37 PM

Quote:

Originally Posted by trkklr77

use the tin cap if possible.

you can also remove the grease zirk from the lower cap and tha twill give you a good flat surface as well.

I was just outside looking at it, and the bottom did look like a better idea.

So the flat surface of the cap IS a good representation of the caster then?

Just wanted to make sure the little ideas floating around in me head were somewhat factual!!!

trkklr77 · 03-01-2011, 08:59 PM

yes.

JGVABronco78 · 03-01-2011, 10:02 PM

Measurements should be made at normal ride height with radius arms as they roll the axle quite a bit as they squat.

Andy351 · 03-01-2011, 10:12 PM

easiest way i've found is to use a swanson speed square and a level on the lower kingpin cap. takes under 30 seconds to measure either side.

Coors · 03-02-2011, 07:31 AM

Quote:

Originally Posted by JGVABronco78

Measurements should be made at normal ride height with radius arms as they roll the axle quite a bit as they squat.

I do understand this, I am actually going to get my caster reading the way the bronco sits now for a comparison, since it does ride and handle good now.

Quote:

Originally Posted by Andy351

easiest way i've found is to use a swanson speed square and a level on the lower kingpin cap. takes under 30 seconds to measure either side.

not sure i quite follow u here, can u explain

been thinking this over and i think i got it now, u put the square on there and then put the level up against it and level it to see there it lines up on the square..... CORRECT?

03-01-2011, 08:06 PM	#1 (permalink)
Coors Registered User Join Date: Jan 2002 Member # 9381 Location: Corning, CA Posts: 758	Measuring caster on a d60 getting ready to swap a king pin 60 into my bronco, and wanting to get the caster somewhere close.. LOL I am going to run stock radius arms, so i know that i can get degreed bushing to get it dialed in, but I just need a starting point. My question is.................. Is measuring across the top of the upper king pin a good measurement? I read a few places where guys described using the upper king pin bolts as a reference point. How does this sound?

03-01-2011, 08:25 PM	#2 (permalink)
trkklr77 skullfuckery Join Date: Apr 2004 Member # 29016 Location: galt ca, because i wanted my own backyard Posts: 15,206	use the tin cap if possible. you can also remove the grease zirk from the lower cap and tha twill give you a good flat surface as well. __________________ Impeach or revolt, which will it be? buy my quad http://www.pirate4x4.com/forum/vehic...00-2500-a.html I WILL TRADE FOR A ROAD WORTHY 55-57 or 71-87 CHEVY 2WD PICK UP

03-01-2011, 08:59 PM	#4 (permalink)
trkklr77 skullfuckery Join Date: Apr 2004 Member # 29016 Location: galt ca, because i wanted my own backyard Posts: 15,206	yes. __________________ Impeach or revolt, which will it be? buy my quad http://www.pirate4x4.com/forum/vehic...00-2500-a.html I WILL TRADE FOR A ROAD WORTHY 55-57 or 71-87 CHEVY 2WD PICK UP

03-01-2011, 10:12 PM	#6 (permalink)
Andy351 Granite Guru Join Date: Aug 2003 Member # 22290 Location: San Diego Posts: 661	easiest way i've found is to use a swanson speed square and a level on the lower kingpin cap. takes under 30 seconds to measure either side. __________________ www.PolyPerformance.com WE GOT WHAT YOU NEED When people in the Taliban are riding around in better trucks than you, you might have a problem.

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03-01-2011, 10:02 PM	#5 (permalink)
JGVABronco78 Rock God Join Date: Feb 2007 Member # 87058 Location: Virginia Beach VA Posts: 1,531	Measurements should be made at normal ride height with radius arms as they roll the axle quite a bit as they squat.