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  Topic Review (Newest First)
Yesterday 09:30 PM
Doosenberry
Quote:
Originally Posted by cobrajoe View Post
So what's all this black magic you got goin' on here. I see 5 holes... but you had 10 before you test fit them and then put it in the lathe right?. What gives? What is this sorcery?
Yesterday 08:59 PM
cobrajoe

Hey, at least it worked....


Yesterday 08:45 PM
cobrajoe Correct, well technically smaller, depending which surface, in this case the drum OD is smaller.
After I machined them, they sat flat, ridding on the entire axle surface and the wheels bolted on true. I adjusted the brakes and ran it on the stands to warm the gear oil up and took her for a ride in the pouring rain. I like the 5:43's, a BIG improvement, but I think I would have LOVED the 5:89's. I know, never happy.



Now I need an alignment.
Yesterday 08:42 PM
CDA 455 So; one surface is bigger than the other, hence, won't sit flat?
Yesterday 08:41 PM
cobrajoe It's sitting flat, but it's only ridding on the outside edge which I'm not too crazy about so I kept going.

I chucked them up in the lathe...



...and removed the necessary material:

Yesterday 08:38 PM
CDA 455 As long as that is centered and sitting flat; you should be good to go.


I've seen guys redrill 8 on 170 rotors to 8 on 6.5 with similar results.

All they care about is that it's centered.
Yesterday 08:37 PM
cobrajoe Further inspection showed that the inside of the drum is not machined as wide as the original drums. I'm committed now, otherwise I have two expensive paper weights.

The original drums have the area between the two arrows machined flat:

Yesterday 08:32 PM
cobrajoe Slid it on and then WTF? Notice the 1/16" space in the bolt holes, it's centered on the hub but not sitting flat.

Yesterday 08:27 PM
cobrajoe Counter sink both sides...



and we are good to go:

Yesterday 08:25 PM
cobrajoe Now I used a smaller bit for a pilot hole...



Then stepped up to 9/16"

Yesterday 08:18 PM
cobrajoe Now I marked out the Explorer drum bolt pattern for a reference point...



Then I inserted the turned down axle hub into the Explorer drum hole and indexed the correct bolt pattern in the center of the smaller bolt pattern...



...and used a transfer punch to center the new holes.


.
Yesterday 08:12 PM
cobrajoe Okay, so after several emails and phone calls to Currie with no luck, I decided I needed to do something about these brake drums. If you take the Wagner part number off of the drum and match it up, it shows that it is for an Explorer, 5 lug 4.5 inch bolt pattern. If you go to Curries website, they sell blank drums with no bolt pattern, which got me thinking. I wonder if they drill these drums to 5 lug 5.5 inch bolt pattern or whatever application they need it for?
I figured, what the phuck, I can do this. I went upstairs and pulled an old 9" 5 X 5.5 axle and measured the hub diameter. I then measured the hole on the drum which was slightly smaller than the axle hub. I chucked the axle up in the lathe and turned the hub down to the drum hole size.

06-23-2019 06:18 PM
cobrajoe
Quote:
Originally Posted by Doosenberry View Post
You wouldn't be the first person to mistake it for Doonesbury. My name starts with D and Doosenberry was one of like 10 different nicknames my older brothers gave me growing up. I would use one of the other ones, but I get accused of bragging I'm packing heat downstairs when I do.
Lol, @Doosenberry , or your a detective.
06-23-2019 06:16 PM
cobrajoe
Quote:
Originally Posted by SRWillis View Post
The 57 looks amazing, you guys do very good work.

I think I spy a pretty much stock 66-67 Big Twin also, and another headlight housing peaking out there...
Thanks @SRWillis . The Panhead he has had almost as long as the '57. Also, the blue Electraglide since the early 80's. The red Electraglide he acquired a couple of years ago. It's been molested; it has disc brakes and some other not very well done changes. The new "Black Thing" is there for repairs.

06-23-2019 05:56 PM
Doosenberry
Quote:
Originally Posted by cobrajoe View Post
My apologies, funny how your mind sees what it wants to see. I always thought it WAS like the Comic strip.

I appreciate the compliment, move a little closer and I'll help you with your projects. Truthfully, I just enjoy working on stuff. I blame my dad, he always made me feel guilty if I wasn't working.
He knows I have done body work, paint and mechanical stuff. I actually had the key to his shop because I got out of work two hours before he did. Hey, at least he trust me to work on his stuff. Seriously though, him and I have been friends for too many years. It's a reciprocal thing.
You wouldn't be the first person to mistake it for Doonesbury. My name starts with D and Doosenberry was one of like 10 different nicknames my older brothers gave me growing up. I would use one of the other ones, but I get accused of bragging I'm packing heat downstairs when I do.
06-23-2019 05:39 PM
SRWillis
Quote:
Originally Posted by cobrajoe View Post
It's gonna be a nice ride when it's done.
The 57 looks amazing, you guys do very good work.

I think I spy a pretty much stock 66-67 Big Twin also, and another headlight housing peaking out there...
06-23-2019 05:22 PM
cobrajoe My apologies, funny how your mind sees what it wants to see. I always thought it WAS like the Comic strip.

I appreciate the compliment, move a little closer and I'll help you with your projects. Truthfully, I just enjoy working on stuff. I blame my dad, he always made me feel guilty if I wasn't working.
He knows I have done body work, paint and mechanical stuff. I actually had the key to his shop because I got out of work two hours before he did. Hey, at least he trust me to work on his stuff. Seriously though, him and I have been friends for too many years. It's a reciprocal thing.
06-23-2019 05:05 PM
Doosenberry
Quote:
Originally Posted by cobrajoe View Post
as @Doonesbury would say...
I'd say close, but no cigar. I believe @Doonesbury would summon a comic strip to your thread.

I always want to paint my stuff (drums, brake boosters, etc.), but I'm hesitant that if I do it'll end up being doa or something and I won't be able to return it.

I'm a bit envious of your friend having you as free labor. I'd buy a LOT of parts if I knew I'd have someone competent installing them for free.
06-23-2019 03:21 PM
cobrajoe as @Doonesbury would say..."and now back to our regularly scheduled programming:

So, physical dimensions are exactly the same:



..but the bolt pattern is definitely wrong:



Like I said, they are all painted already, hope they take them back. I guess I could always throw them in the sandblasting cabinet.

06-23-2019 10:38 AM
cobrajoe It's gonna be a nice ride when it's done. It kept me busy for most of the winter when it was too cold to work in my shop. I have heat, but my shop is 60' x 60' with 18' ceilings and no insulation so it gets expensive. Plus I kinda lit a fire under his a$$ so he took advantage of the free labor while he could. I still go by on Saturday afternoons when I'm done at my shop and help him out.

Here's some more pics:











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