Cone Sure Grip Resurrection

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RustyRatRod

I was born on a Monday. Not last Monday.
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Aight den. We all know this story, so we're not hashing back through "that" again. That's not what this thread is about. I have instructed the moderators to dump any off color comments, so if you have nothing to say positive regarding this, then shut up. This is to make sure @63spf ends up with a good, workable cone type sure grip unit. Here are all the parts I have received from Chris, @63spf, Bob, @Bigboy 68 and Jim, @fratzog lover. I have some parts of my own that are not in the picture, but I will take from those if necessary.

So far, we've gotten lucky. I was able to successfully press the small spider gears off the cross shaft that @fratzog lover, Jim sent. They both have great gear teeth and only minimal pitting on the inside bore. All I need to do is hone them out with a brake cylinder hone, as they did pick up some metal from the cross shaft, but they will clean up nicely. Follow along if you want to. This won't take to long now. Here is what I have. Unusable parts on the right hand side.

SURE GRIP PARTS.jpg
 
How about close up pictures of what the worn out parts look like, wear marks ect........
 
Much Mahalo, and lets have some fun out there !
Stay COOOL & Hope that storm passed right on by u ! C
 
Here are some examples of unusable parts.

Here is a sure grip cone that's something's happened to on the inside of the carrier. Something came apart evidently and beat the sides all up. I could probably dress is with a dremel and file and reuse it but, since I have some that aren't damaged like this, those are what I am going to use.

SURE GRIP CONE.jpg



Kinda obvious we caint use this side gear.

SIDE GEAR.jpg



We have two spider gears like this. Obviously unusable.

SPIDER GEAR.jpg



Here is the cross shaft that I was able to remove the two spider gears from that I am going to use. We really got lucky here, Chris. Of course, this shaft is scrap metal now.

CROSS SHAFT.jpg



This is one of the case halves the cross shaft above came out of. I've thought about trying to have these bushed when they do this, but I am uncertain it would work, since the case halves are made to come apart......so again.......scrap metal.

CASE HALF.jpg




Now, Chris, here is where we really got lucky and dodged a bullet. These are the spider gears I am going to use. I SOAKED these bad boys down with Deep Creep and let them sit a while. Then slowly pressed the gears off the cross shaft. Worked pretty good. Although it appears they are galled, they are not. All of what you see in the bores is imbedded metal from the cross shaft. In other words, it's metal buildup, not pitted, which we can work with. Some honing with a brake cylinder hone will have these good as new.

USABLE SPIDER GEAR.jpg
USABLE SPIDER GEAR1.jpg
 
Damn , I'm still trying to figure out how u took the picture with your 2 hands on the spider gear . Many thanks for the brake down. Helps me lots, C
 
Damn , I'm still trying to figure out how u took the picture with your 2 hands on the spider gear . Many thanks for the brake down. Helps me lots, C

You can please thank Kitty for that. She enjoys taking all the car and how to pictures.
 
Thankyou Kitty for all your help !!!
And if you ever want more Kona Coffee, Chocolate or anything from the Big Island ? LMK ! Mahalo, C
 
Thankyou Kitty for all your help !!!
And if you ever want more Kona Coffee, Chocolate or anything from the Big Island ? LMK ! Mahalo, C

Man I LOVE that chocolate. I'm bout half way through it. Thanks for reminding me. I'm gonna get some now. lol
 
I would like to say that Rusty Refurbished my cone suregrip (although mine was in much better shape) and did a excellent job. The car is not on the road yet, but the differential is together and under the old girl.
 
I would like to say that Rusty Refurbished my cone suregrip (although mine was in much better shape) and did a excellent job. The car is not on the road yet, but the differential is together and under the old girl.

Great! I am glad you got it in there. Keep me posted how it works.
 
Well....rats. I was going to get started tonight and did.......kinda. I tried my brake cylinder hone to remove the imbedded metal from the cross shaft out of the spider gear bores. It's just not big enough or abrasive enough. I looked for a drill bit (7/8) and of course don't have one. Got one one size bigger. lol So I ordered a 7/8 drill bit and will gently skim the inside bores of the spider gears and finish dress them with the brake cylinder hone when the bit gets here next week. Stay tuned. It's comin soon. lol
 
Aight den. Had to wait for a little while on this as I had to buy a few tools. Couple of drill bits......that didn't work. Then I got a cheap Dremel tool copy. It came in today. Now, any tools I buy I am not charging Chris a dime for as they are tools and can be used on other projects.

That said, here is the result.

GEAR1.jpg


GEAR2.jpg


GEAR1 TOP.jpg


GEAR2 TOP.jpg


GEARS ON SHAFT.jpg


IMO, we have a winner! Yes, there are a few pits on the outside ends of the bores of the gears, but all of the imbedded metal came out. I used the small red sanding cylinder set on medium speed with the dremel and flex shaft. It was just enough to remove the imbedded metal and not abrasive enough to hurt the hardened gears themselves. This came out better than I had hoped. Considering how hard these gears are to find, these are totally useable. Now all I need is about 30 minutes tomorrow to assemble and Chris will have a good remanned cone style sure grip. I am absolutely thrilled I was able to pull this out and make chicken salad out of chicken poop.

Then I have a carburetor for @rumblefish360 and another for @Jadaharabi. Yall bear with me fellas, they're comin.
 
I don't know how you do it my friend ? Rabbit out of a hat ? Steak from what used to be hamburger !
You are unreal ! Many thanks for your time and understanding ! Mahalo C
 
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Aight den. I decided to shoot a sure grip assembly video instead of stills. I got it all reassembled. It's gonna be a really good unit. Here you go, Chris. @63spf

 
Rob that was an awesome video and you did a great job thank you very much for getting this together for Chris it is much appreciated
 
Glad to do it, Bob.
I have a cone sure grip from auburn. It's brand new in my 8.25. What is the lifespan on these units? I guess in the coarse of miles driven some normal street drives and occasional tire spin for fun showing off! Just curious to know I have never really known a ballpark figure. Only reference is an old mopar action mag that gave 200,000+ lifespan. Does that sound right?
 
If you ever get a flat rear tire make sure you have spare tire of exact same size. If your spare is a smaller diameter than the rear tires and you put it on one side to get back home you can burn out your Sure-Grip in a matter of 10 miles. Weather it be the cone style Auburn or The Clutch Style.

Clutch style Sure-Grip are heavier duty than the Auburns, as the Clutch style has 4 spiders gears and clutch packs. Vs the Auburn has only 2 spiders on one cross pin and a tapered cone to do the clutch work.
 
I have a cone sure grip from auburn. It's brand new in my 8.25. What is the lifespan on these units? I guess in the coarse of miles driven some normal street drives and occasional tire spin for fun showing off! Just curious to know I have never really known a ballpark figure. Only reference is an old mopar action mag that gave 200,000+ lifespan. Does that sound right?

That's probably about right.....as long as you drive it correctly. Here's correctly. NO spinning tires around turns. This is what kills them. They loosen up over time and when you spin tires around a turn, it will get to where only the inside tire will spin. Of course, the cones are slipping, but that's not the worst part. The worst part is the speed at which the small spider gears are spinning on the cross shaft. They spin FAR BEYOND their designed intent and over hear and weld themselves onto the cross shaft. When that happens, they force the whole cross to turn in the case bore, breaking the cross shaft retaining pin. Then the shaft starts to spin in the case bores and ruins the case. All of this takes about as long as it too you to read this.

In short, if you're going to do a burnout, stop STRAIGHT and romp it from a straight stand still. Then the spider gears are spinning with the case and both rear axles as intended, instead of independently from each other. As long as you do that and keep oil in the thing, it will likely not break.
 
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