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Old 03-19-2007, 10:07 PM   #1 (permalink)
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Dana 70 disk brake conversion?

does anybody know of a factory built disk brake rotor that will fit onto the hub of a dual wheel dana 70 rear axle. i am building a project mud bogger and i cant afford the 650 dollars for a premade conversion kit. i really would like to run disks. if anybody has any info or advice please help. i would really like to find a rotor that i dont need to machine to fit over the hub correctly. thanks for your help.
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Old 03-19-2007, 10:46 PM   #2 (permalink)
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machine the hub to fit the rotor. this way if you roach the rotor, you wont have to pay to have the new ones machined again
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Old 03-20-2007, 06:01 AM   #3 (permalink)
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in the axles tire n wheel vendor area, theres a vendor that has rotors and brackets for 140$..... check em out they look pretty sweet and have the larger hole in the center to fit the hub.... he says they are for SRW though
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Old 03-20-2007, 08:01 AM   #4 (permalink)
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GreatLakeOffroad in the vendor section makes the brackets for the disk brake conversions. If the DRW is the same Dana 70 as the SRW 70, the front rotors and calipers from a K20 should work. I am in the process of a disk brake conversion on a SRW 70 now.

Again, GreatLakeOffroad has done a good bit of R&D on these conversions. He would know the answers for you.
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Old 06-21-2010, 12:07 PM   #5 (permalink)
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UP, UP, UP... I'm looking for some more info on this too...Anyone?
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Old 06-21-2010, 10:31 PM   #6 (permalink)
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ok so ill help you do what should be a easy task of "searching" yes it might take a few minutes to find what you need but google is not as hard as some make it sound.

just because of your name im taking a guess

http://www.ruffstuffspecialties.com/...lly-p-219.html

or try these
http://www.ruffstuffspecialties.com/...xle-p-176.html

or just cough up the money
http://www.blackbirdscustomtrucks.com/index8.html

then you got a choice

get a 3/4 ton ford rotor open the center up

get a 3/4 ton chevy rotor open center up

mill the hub to fit one of the above
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Old 06-21-2010, 11:25 PM   #7 (permalink)
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What style of brakes are on this D70? Inboard, stud retained, or outboard, slip ons?
I personally like using the outboard setup and an E350 rear rotor(pretty much anything 96+ for an app) as it stays slip on and is cheap.
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Old 06-22-2010, 12:39 AM   #8 (permalink)
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A bit off topic guys. (dont want to start a new thread)

Just did a rear disc swap on my rear D70 (chev 3/4 ton calipers/rotors/ruffstuff brackets) & using a 78' F250 master cylinder. (factory suzuki xl-7 booster-much bigger than a sammy etc..)

Having major issues, system bleeds great, master was bench bled etc....
Pedal is great but:
When you start the truck pedal hits the floor.

Any thoughts? Should we look into a corvette or similar master meant for dual discs??

Or am I just not thinking & missing something. Spent about an hour bleeding tonight Could try bleeding again...... UGH
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Old 06-22-2010, 07:03 AM   #9 (permalink)
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I went the Rough Stuff route and it was simple -

Weld on caliper mount-


Light machining to get rotor to fit-


Spend way too much money figuring out what studs fit and pay too much for them at Napa because you needed them right away


Complete -


Clears a 15" wheel when you threaten it with a flap disk-


Even after spending too much money on Napa studs (much cheaper online, figure out what fits and then just order it) I had disk brakes on my D70 for ~$300.
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Last edited by KyleQ; 06-22-2010 at 07:04 AM.
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Old 06-23-2010, 08:34 AM   #10 (permalink)
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the ruff stuff bolt on mounts are awsome. and he'll just tell you what disks you need. no more withholding info bullshit some of the others do.
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