fj55 axle conversions to Fj60 HELP

[YukonCruisers]

 

[55guy]

Ruff Stuff Looks good !!!! , I"m doing my rear axle next week

 

[Hamachi]

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Did you go soa or sua with those perches?

 

[Hamachi]

You can inboard the spring perchs on the axle housing to match the factory leaf width, or, you can outboard the spring hanger and shackle hanger on the frame to match the spring perch width on the 60 series axle housing. The first option is far less work than the second option.

Is there any benefit to outboarding the perches on the frame?

 

[YukonCruisers]

SUA, dakar springs about 3 inches of lift - not sure of the physics, but in my head there is no advantage of outboarding the perches in the back

 

[Hamachi]

SUA, dakar springs about 3 inches of lift - not sure of the physics, but in my head there is no advantage of outboarding the perches in the back

Thx - I appreciate it.

My 40 is soa, but I want to keep the pig sua. I gotta start cutting crap off tomorrow after work.

 

[RocketCityCrzrs]

Yep all these guys are leading you down the right path. Move the rear perches on the axle and just replace them with quality aftermarket. The front axle has to be out boarded because the front diff won't allow you to move the perches inward. Also if you are doing a lift, now would be the time to adjust the rear pinion angle since you're moving the perches anyway

 

[RUSH55]

I outboarded both front and rear because I wanted it to match (for whatever reason). Even with outboarding the rear 1-1/2” on each side, the spring perches still needed to be moved inwards 11/16” (IIRC).
After cleaning off the old weld, I set the axle on the perches I built on some pieces of tubing to keep the banjo clear of the ground. I used a magnetic angle finder (incorrectly in the pic - stick it to the pinion output flange and set the axle to zero degrees). I calculated where the perches needed to be by measuring from a consistent set point on the brake backing plate flange.

 

[bobm]

Your Nuts fell off

 

[Hamachi]

SUA, dakar springs about 3 inches of lift - not sure of the physics, but in my head there is no advantage of outboarding the perches in the

I outboarded both front and rear because I wanted it to match (for whatever reason). Even with outboarding the rear 1-1/2” on each side, the spring perches still needed to be moved inwards 11/16” (IIRC).
After cleaning off the old weld, I set the axle on the perches I built on some pieces of tubing to keep the banjo clear of the ground. I used a magnetic angle finder (incorrectly in the pic - stick it to the pinion output flange and set the axle to zero degrees). I calculated where the perches needed to be by measuring from a consistent set point on the brake backing plate flange.

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Thanks for pics… looks good. Which perches are those? Ruff stuff?

 

[Hamachi]

Thanks for pics… looks good. Which perches are those? Ruff stuff?

What steering system are you running?

 

[YukonCruisers]

My perches are from ruff stuff, i installed a scout box for steering

 

[RUSH55]

Thanks for pics… looks good. Which perches are those? Ruff stuff?

I made them out of 2-1/2” x 1/4” square tubing.

 

[Hamachi]

I just finished removing rear perches today.
Tomorrow, I cut front hangars out, then
put my new rotors on and mock up the front.

 

[Hamachi]

I outboarded both front and rear because I wanted it to match (for whatever reason). Even with outboarding the rear 1-1/2” on each side, the spring perches still needed to be moved inwards 11/16” (IIRC).
After cleaning off the old weld, I set the axle on the perches I built on some pieces of tubing to keep the banjo clear of the ground. I used a magnetic angle finder (incorrectly in the pic - stick it to the pinion output flange and set the axle to zero degrees). I calculated where the perches needed to be by measuring from a consistent set point on the brake backing plate flange.

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I just zoomed in on your springs and noticed Alcan logo. That’s gonna be a nice soft ride… I just got a quote from Lou for a set. Kinda pricy - but worth it I hear…

 

[Hamachi]

I outboarded both front and rear because I wanted it to match (for whatever reason). Even with outboarding the rear 1-1/2” on each side, the spring perches still needed to be moved inwards 11/16” (IIRC).
After cleaning off the old weld, I set the axle on the perches I built on some pieces of tubing to keep the banjo clear of the ground. I used a magnetic angle finder (incorrectly in the pic - stick it to the pinion output flange and set the axle to zero degrees). I calculated where the perches needed to be by measuring from a consistent set point on the brake backing plate flange.

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can you post some pics of front outboard hangars?
did you re-use the stock hangars?

 

[RUSH55]

can you post some pics of front outboard hangars?
did you re-use the stock hangars?

No, I fabricated them out of 1/4” plate and some turned DOM tubing for the shackle hangers.

 

[J Mack]

I just finished removing rear perches today

What's the plan for welding them back on?
Are you taking tube warpage into account?

 

[Ol Yeller]

What's the plan for welding them back on?
Are you taking tube warpage into account?

I’m all ears on this...

 

[RUSH55]

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