Builds Project Lockjaw-1973 Fj40 on Tons (1 Viewer)

[Mike Shull]

Your Cruiser looks awesome. Are those 16” Kings on the front?

Mine are very similar to this. I don't have a ton of miles on my set-up yet, so I can't comment on how its gonna last.

 

[mano002]

yup. but I can't use all of the travel, as my front u-joint binds, I need to alter the front 3-link a bit and maybe change to a high-pinion front end. Those are future projects though.

 

[Mike Shull]

yup. but I can't use all of the travel, as my front u-joint binds, I need to alter the front 3-link a bit and maybe change to a high-pinion front end. Those are future projects though.

What degree do you put have your front pinion? Mine is set at 12* so I am hoping to get full 16” of flex. I have a low pinion D60.

 

[mano002]

I'm not sure where the pinion is, and I should have measured. I don't remember the castor is either, but what became evident is that my pinion doesn't tip up enough as it droops.

 

[DangerNoodle]

What degree do you put have your front pinion? Mine is set at 12* so I am hoping to get full 16” of flex. I have a low pinion D60.

I'd set caster before setting pinion angle. That will probably be your driving factor to get steering feeling and behaving well.

 

[Firemedic831]

My Diamond axle are at 12 and 6

 

[Mike Shull]

Thanks, @DangerNoodle. My pinion is 12* and the caster is 4*.

 

[too tall]

I'd set caster before setting pinion angle. That will probably be your driving factor to get steering feeling and behaving well.

Pinion angle should be set before caster , unless you are just compromising with the existing setup on the axle. You cannot change pinion angle. The c's can be cut off and re-set to the correct angle afterward if you need.

 

[too tall]

I'm not sure where the pinion is, and I should have measured. I don't remember the castor is either, but what became evident is that my pinion doesn't tip up enough as it droops.

Your upper and lower link length relationship determine the path and travel of the pinion angle. If you want the pinion to rotate up or down during travel, you need to adjust link length or mounting point.

 

[Mike Shull]

Pinion angle should be set before caster , unless you are just compromising with the existing setup on the axle. You cannot change pinion angle. The c's can be cut off and re-set to the correct angle afterward if you need.

Correct.

 

[matzell]

1410 Neapco yoke will give you a lot more flex than a Spicer by about 7-10 deg. that is what I run on 4573

 

[DangerNoodle]

Pinion angle should be set before caster , unless you are just compromising with the existing setup on the axle. You cannot change pinion angle. The c's can be cut off and re-set to the correct angle afterward if you need.

Fair point, i didn't realize he had the cs off. Usually, you can get by with a pretty good compromise without having to modify too much, in my experience.

Thanks, @DangerNoodle. My pinion is 12* and the caster is 4*.

I'd aim for a lot more caster with your tire size. I' sitting at about 8* with 37's. It will really help with handling, along with a well deisgned steering setup with proper ackerman.

 

[Mike Shull]

Too late

Fair point, i didn't realize he had the cs off. Usually, you can get by with a pretty good compromise without having to modify too much, in my experience.



I'd aim for a lot more caster with your tire size. I' sitting at about 8* with 37's. It will really help with handling, along with a well deisgned steering setup with proper ackerman.

 

[DangerNoodle]

Too late

That's pretty low caster for 37+, just as an fyi. You'll probably have very little return to center. It will alao probably want to walk around or get pulled around in lanes more easily.

 

[too tall]

I think 4 degrees is good. I run 3 on my rig on 40's and it drives pretty nice down the roads between trails. I have a steering box as well.

 

[bluehawk]

Valid points, thought I was in a different post for a minute until I realized its mine, lol

 

[Mike Shull]

I thought the same thing. Let’s get back to your build.

Valid points, thought I was in a different post for a minute until I realized its mine, lol

 

[too tall]

Sorry for the sidejack. Please carry on.

 

[bluehawk]

Sorry for the sidejack. Please carry on.

All good. Everything that was posted was good info

 

[bluehawk]

Got a good hood for the project