SPOA knuckle turning (1 Viewer)

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crapzuk

crapzuk

Joined
Oct 25, 2005
Threads
50
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334
Location
Central Alabama
Website
www.trailwerx.com
I need to cut and turn some knuckles for a spring over, was thinking of building a jig so that I can do it in house easily, I was thinking of a base plate with 2x4 box tube stands notched to hold the housing, then weld a plate where I can tighten it down with U-bolts.

Never done this before, so do I just set the pinion parrallel with the ground then turn the knuckles 6 degrees back then weld back in place?

Jason
 
assuming a soa with stock 40 springs and a shackle reverse in front you are safe with the following

set on jackstands( level left to right) , use third jackstand to set pinion at 8*
set new perches on at 0* or level ( you are aware the pass side perch requires cutting to get it to sit on housing nicely) , tack em.
cut ball ends with rented pipe cutter, easy just gotta clean all the stops, shock mounts, and brake line tabs off.
rotate driver side to 4 or 5*( top of ball toward rear of truck)
rotate pass to .5* less than driver side.
weld em, weld brake, shock, and steering stops back on, put under and set vehicle down to verify pinion angle then burn the perches home.
trust me grasshopper.
 
Peesalot, what is the purpose of rotating the passenger side knuckle ball end .5* less than the driver's side?
 
GulfShoresFJ60 said:
Peesalot, what is the purpose of rotating the passenger side knuckle ball end .5* less than the driver's side?
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caster split so it dosnt follow road crown as much
 
Ok, I am a new to Landcruiser and all trucks here so excuse me if you find this wuestion stupid. In order to cut and turn, do you need to completly take apart the axle?
 
Suarez0523 said:
Ok, I am a new to Landcruiser and all trucks here so excuse me if you find this wuestion stupid. In order to cut and turn, do you need to completly take apart the axle?
Click to expand...

You don't have to but it helps. I have heard of people doing it with everything still connected and just the tires off but I'm sure it would take the same amount of time because you have to deal with all the stuff in the way.

That's interesting about the castor split. I didn't do that and it goes perfectly straight on a flat road but on a road where it slopes it definitely goes off the side slowly. Would it turn slightly on a flat road?
 
Suarez0523 said:
Ok, I am a new to Landcruiser and all trucks here so excuse me if you find this wuestion stupid. In order to cut and turn, do you need to completly take apart the axle?
Click to expand...

You are going to burn up any seals, grease, oil left in the housing when you weld the ball back up. Strip it down except the third.
 
crapzuk said:
Can you use a cut off wheel on a grinder instead if you don't have a big pipe cutter?
Click to expand...

Yes you can it just takes more finesse and a little more caution so you don't cut too deep. That is what I did because I could not find a big pipe cutter anywhere.
 
Cutoff wheels are nice.If ya get a couple big ones, you can leave all the steering stops and such.Watch your fingers.Just did it last week.Showed some jeepy guys the cut and turn.They liked.
 
I just mirrored what the factory set the caster to. It was .4* diff when we disassembled it so we just rolled em back the same amount maintaing the diff set in at the factory. Goes straight on all roads. Only thing I think is noticable is at freeway speed it is just a hair tighter and quicker steering left than right just off center, after initial wheel movement it feels same either way.
 
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