Author Topic: ToyBrota's SFA knuckle rebuild.  (Read 1743 times)

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Toybrota

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ToyBrota's SFA knuckle rebuild.
« on: Aug 14, 2017, 09:59:17 PM »
Hey all, I finally have got around to being able to rebuild my front knuckles.
I figured I'd make a write up about it and show everyone.
I know it's been done and shown a million times, but I wanted to show my personal perspective on what I encounter with the build process.

Being that my truck has over 300K miles on it, I figured the trunions, wheel bearings, and all the other miscellaneous parts could been updated. 

My axle exhibited the same leaking inner axle seals that everyone else encounters at one time or another. 

I apologize about the photos not being in order.

I purchased Low Range Off Road's "Ultimate knuckle rebuild kit" as it was on sale for only $280. I chose this over the Marlin as I wanted to not only support a local business (I live in SLC) But also because it came with the specialty tools.

The parts in both kits are identical as far as I can tell, apart from the inner axle seals. After seeing so many forum posts about the Marlin Eco Seals, I bought a pair! Meaning I have 3 sets of inner seals... Of course I'm using the Marlin.

I even work for a Toyota dealer here in Utah and decided against using my discount on parts as I can't justify using parts that could be upgraded with better ones.

This kit also came with the Backing plate eliminator kit, which for my situation (No Highsteer) I figured would be Overkill, but to hell with it I'll use it anyways.

However, the kit was missing some stuff, namely the hub O-rings and spindle studs. Quick call down south of me and they are on the way.

I plan to do this rebuild in 3 stages, drivers knuckle first, then passenger, and then rebuild the hubs. To most it would make sense to rebuild all at once, but my truck is a daily, so I'll just do a knuckle a weekend.

I'm excited to start this weekend, I'm gonna get some high quality Moly grease for the Birf's, which hopefully aren't too worn out!

I'll update more as it comes along.





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Toybrota [OP]

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Re: ToyBrota's SFA knuckle rebuild.
« Reply #1 on: Aug 19, 2017, 11:01:50 AM »
Got the knuckle itself torn down to the ball.

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Toybrota [OP]

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Re: ToyBrota's SFA knuckle rebuild.
« Reply #2 on: Aug 19, 2017, 11:02:34 AM »
Rebuilt the spindle and knuckle assembly, new gaskets and spindle bushing.

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Toybrota [OP]

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Re: ToyBrota's SFA knuckle rebuild.
« Reply #3 on: Aug 19, 2017, 07:12:36 PM »
Followed by the finished knuckle.
The hardest part was shimming, took about 5 times to get it right. But I did.


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Re: ToyBrota's SFA knuckle rebuild.
« Reply #4 on: Aug 26, 2017, 01:38:55 PM »
Doing the other side, stock Toyota shims, and the trunions despite having 330K miles on them I could re use them. Goes to show the quality that was used.
Koyo coming out, new koyo going in.

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Re: ToyBrota's SFA knuckle rebuild.
« Reply #5 on: Aug 26, 2017, 02:02:45 PM »
i plan to do this in a few months so a good write up is always helpful. i also have a brand new hysteer kit from allpro if interested.
1983 Toyota pickup Sr5 6 inch shackle lift 33 super swampers 4:88 gears front and rear locked in the rear 22r high lift air tank tools and other junk(sold)
1987 4runner ifs 3 inch pro comp lift 33" TSL swampers and a cherry bomb exhaust(sold)
1987 4runner Sr5 current sas build
http://board.marlincrawler.com/index.php?topic=101170.new#new

Toybrota [OP]

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Re: ToyBrota's SFA knuckle rebuild.
« Reply #6 on: Aug 26, 2017, 02:23:50 PM »
Easiest way to clean all these parts is engine degreaser, and a wire brush.
The birField axle just got sprayed out, a liberal coating of WD40 is applied if it sits over night, I'm just gonna use brake cleaner, and some good Moly grease. Works great.

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Re: ToyBrota's SFA knuckle rebuild.
« Reply #7 on: Aug 26, 2017, 03:29:53 PM »
Did you know stock Birfields come a part, that way you can check the bell, cage and balls for cracks or wear. Your TG ad is a little much considering this is Marlins web page!!
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Toybrota [OP]

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Re: ToyBrota's SFA knuckle rebuild.
« Reply #8 on: Aug 26, 2017, 03:42:01 PM »
Did you know stock Birfields come a part, that way you can check the bell, cage and balls for cracks or wear. Your TG ad is a little much considering this is Marlins web page!!
I know the birField comes apart, I just didn't really see the need.
With the trail gear ad I guess you could say, I just choose that kit because those guys are real close to me and I wanted to support local. I buy Marlin all the time, they have gotten about $500 from me in the last 2 months alone. I love his stuff and I get it when I can.

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Re: ToyBrota's SFA knuckle rebuild.
« Reply #9 on: Aug 26, 2017, 07:33:56 PM »
I know the birField comes apart, I just didn't really see the need.
With the trail gear ad I guess you could say, I just choose that kit because those guys are real close to me and I wanted to support local. I buy Marlin all the time, they have gotten about $500 from me in the last 2 months alone. I love his stuff and I get it when I can.

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Besides, the kit isn't even made by trail gear. It just has some trail gear parts in it.

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Re: ToyBrota's SFA knuckle rebuild.
« Reply #10 on: Aug 27, 2017, 03:13:18 AM »
bleh. trail gear is scum.

but good rebuild, I gotta get around to mine. axle seals leak pretty good. maybe I'll throw in a front aussie and put some redline in too :)
:)bestgen4runner [12:45 PM]:   I am so stupid.

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Toybrota [OP]

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Re: ToyBrota's SFA knuckle rebuild.
« Reply #11 on: Aug 27, 2017, 03:23:49 PM »
Finally finished.
One hell of a job. Brake clean. Lots, and lots of brake clean. 


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Re: ToyBrota's SFA knuckle rebuild.
« Reply #12 on: Aug 27, 2017, 03:24:20 PM »
Also, guess what's wrong in this picture. I soon found out when it was like this.

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Re: ToyBrota's SFA knuckle rebuild.
« Reply #13 on: Aug 27, 2017, 03:31:43 PM »
Also, guess what's wrong in this picture. I soon found out when it was like this.

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Where's your steering arm knuckle is upside down

Even the most primitive society, has an intimate respect for the insane.

Toybrota [OP]

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Re: ToyBrota's SFA knuckle rebuild.
« Reply #14 on: Aug 27, 2017, 03:32:38 PM »
Where's your steering arm
The knuckle is upside down, geez I felt so stupid. I knew as soon as I saw the grease plug on the wrong side.

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Re: ToyBrota's SFA knuckle rebuild.
« Reply #15 on: Aug 27, 2017, 03:35:28 PM »
I thought you where setting it up for a road course with all that camber,lol   :driving:
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