9" Rear Disc Rotors

Thanks for the info on the rotors! :grinpimp: I've got a Ford 8.8" that I'll be leaving the stock 5X5.5 lug pattern on & those rotors will work for the 8.8"s too.

bronco69drp said:

if you are doing a rear disc mod on a ford 9" here is some info: if you are running YUKON rear axles, 1995 dodge 1500 4x4 front disc brake rotors slide right over the flange.

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Pretty cool info. Are you using the '95 Dodge brake calipers too?

Great info! I'm guessing that the spacers can be found in the hardware section of Lowes?

I'm just gonna use some 5/8" X .065" wall DOM & cut it on my band saw.

spacers are in the lowes speicialty hardware drawers.

What year caliper bracket did you use from Speedway motors? I see there are two diffrent ones. I am going to order them, but do not want to get the wrong ones.

I just bought the 91641008 part number from Speedway Motors ( http://www.speedwaymotors.com/p/334...racket.html?itemNo=FLAT+MOUNT+CALIPER+BRACKET ), they fit the '69-'77 GM front calipers. I bought my rotors threw Parts America ( http://www.partsamerica.com/Product...Y&mfrpartnumber=76447RGS&parttype=221&ptset=A ) for $60 & some change for the pair.

mechanix said:

What year caliper bracket did you use from Speedway motors? I see there are two diffrent ones. I am going to order them, but do not want to get the wrong ones.

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Item # 91641008 '69-'77 GM CALIPER BRACKET EA $9.95

Thanks. Placed my order today.

if there's a kragen, checker, or shucks near you jsut print out the parts america price sheet and take it in and they will honor that price since it's the same company.

Does it matter what brake offeset you had for the drum brakes? I think I have the 2" wide shoes and that meant a different Yukon axle part number.

Or since you are welding on the caliper bracket, it doesnt really matter??

I don't think it will matter on what existing drums you have, the axle stand out ( that's the measurement from axle flange to housing flange where the drum bolts on ) on 9" & 8.8" Ford rear ends are both 2.5" regardless of the drums. With the weld on caliper brackets you should be just inside the housing flange. 8.8" full size truck housings are about 3.25" in diameter so you'll have to grind the caliper bracket to get a proper fit, I think all 9" axle tubes ( stock ) at the housing flange are 3" so you should be good to weld them right on.

i installed my rotors, assembled the calipers on the brackets, placed them over the rotors(bleder screw up:laughing: ) tac welded the brackets to the axle housing, took everything back apart & finish welded the brackets on :smokin:

Are you using a line lock for an emergency brake or did you just eliminate the e-brake all together?

Zainyd I am not using an e brake setup at this time on my 9".

Ok, I may just elimate the e-brake on my Ranger. I have a 9" that I'm thinking about swapping in place of the full-width 8.8 that's in there now. I've had nothing but problems with the 8.8 since I got it. Dumped about $500 into it with gears and a rebuild and it's leaking like a sieve from the pinion. I've replaced the pinion seal and it still leaks like crazy plus it's got drum brakes. I've only got about $140 into my 9" at the moment and can do discs for about another $100.

i'm installing a line lock.