Author Topic: Disc brake conversion  (Read 3991 times)

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Offline Stokedpwrwagon

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Disc brake conversion
« on: June 20, 2011, 08:38:26 PM »
Howdy all, I have a 73 Power Wagon Adventurer and it has drum brakes on all 4 corners but I want to convert to disc brakes front and rear, is there a vehicle i can take the disc brake system off of that would be a straight swap? Or an aftermarket conversion kit?
1973 Dodge Power Wagon Adventurer Sport 4x4 360 4speed Dana 44/Dana 60 MT wheels, Good Year Wrangler R/T IIs military tires, Hurst shifter....more to come
\\\"hey dog, did ya see the size of the chicken?!\\\"

Offline Elwenil

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Re: Disc brake conversion
« Reply #1 on: June 20, 2011, 09:14:44 PM »
The front brakes can be swapped off any '80-'93 truck, naturally one that matches your weight class.  The only front axle you would not be able to swap discs on would be the closed knuckle D70 front axle.  For the rear you are going to have to go to the aftermarket for your specific rear axle but there are many different kits out there.  Keep in mind that some of the rear disc brake kits do not have any provision for a parking brake which could be a problem if you have any sort of safety inspection where you live.
L.Clemons

1988 Ramcharger-Mil-Spec AW450 Project-318EFI-NP435 4 speed-NP205 Transfer Case-Front & Rear Dana 60s-Braden Wormdrive Front Winch
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Offline Furyschild

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Re: Disc brake conversion
« Reply #2 on: June 21, 2011, 11:38:42 AM »
Didn't some Dakota's come with rear discs on the heavy duty axles ( 9 1/4)?
If I'm right it could be a alternative to aftermarket kit for rear.
1993 Dodge Ramcharger W150 Canyon Sport 5.2 Magnum

Offline Elwenil

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Re: Disc brake conversion
« Reply #3 on: June 21, 2011, 12:47:07 PM »
Yes and the later Ram's did also but since his truck is 8 lug, it's not going to help him much.
L.Clemons

1988 Ramcharger-Mil-Spec AW450 Project-318EFI-NP435 4 speed-NP205 Transfer Case-Front & Rear Dana 60s-Braden Wormdrive Front Winch
I do not like shortcuts.  Any job worth doing is worth doing right.

Auribus Tenere Lupum

Offline Stokedpwrwagon

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Re: Disc brake conversion
« Reply #4 on: June 21, 2011, 01:34:04 PM »
Correct this is an 8 lug and has Dana 60s frt and rear
1973 Dodge Power Wagon Adventurer Sport 4x4 360 4speed Dana 44/Dana 60 MT wheels, Good Year Wrangler R/T IIs military tires, Hurst shifter....more to come
\\\"hey dog, did ya see the size of the chicken?!\\\"

Offline Elwenil

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Re: Disc brake conversion
« Reply #5 on: June 21, 2011, 01:59:34 PM »
If it has a D60 front, it should already have disc brakes.  If it has drum brakes, most likely it is a closed knuckle D70 front axle, which means you are unfortunately stuck with the drum brakes without a lot of expensive machine work and fabrication.  Can you see the axle joints on the front axle or are they covered by a ball and socket looking arrangement like this:

L.Clemons

1988 Ramcharger-Mil-Spec AW450 Project-318EFI-NP435 4 speed-NP205 Transfer Case-Front & Rear Dana 60s-Braden Wormdrive Front Winch
I do not like shortcuts.  Any job worth doing is worth doing right.

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Offline Stokedpwrwagon

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Re: Disc brake conversion
« Reply #6 on: June 21, 2011, 04:57:40 PM »
I can see the axle joints clearly on both sides But unfortunately it has drums on all 4 corners the guy I bought the truck from said it had D60s frt and RR maybe he was wrong?
1973 Dodge Power Wagon Adventurer Sport 4x4 360 4speed Dana 44/Dana 60 MT wheels, Good Year Wrangler R/T IIs military tires, Hurst shifter....more to come
\\\"hey dog, did ya see the size of the chicken?!\\\"

Offline Elwenil

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Re: Disc brake conversion
« Reply #7 on: June 21, 2011, 05:08:22 PM »
Sounds like you have a D44 front axle like this one:




Is your truck 5 or 8 lug?  If it's a 5 lug, it's definitely a D44, if you have 8 lug axles with drum brakes it's going to be a D44 or a closed knuckle D70.  The D60F wasn't available until '75.
L.Clemons

1988 Ramcharger-Mil-Spec AW450 Project-318EFI-NP435 4 speed-NP205 Transfer Case-Front & Rear Dana 60s-Braden Wormdrive Front Winch
I do not like shortcuts.  Any job worth doing is worth doing right.

Auribus Tenere Lupum

Offline Stokedpwrwagon

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Re: Disc brake conversion
« Reply #8 on: June 21, 2011, 06:08:20 PM »
It's 8 lug frt/rear but I can see the axle joints in frt so it's not closed so I'm goin to guess and agree w/you that their Dana 44s but it's hard to tell from your pic if they match but my front axle does have lock out hubs on it
1973 Dodge Power Wagon Adventurer Sport 4x4 360 4speed Dana 44/Dana 60 MT wheels, Good Year Wrangler R/T IIs military tires, Hurst shifter....more to come
\\\"hey dog, did ya see the size of the chicken?!\\\"

Offline warlock4x4

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Re: Disc brake conversion
« Reply #9 on: June 21, 2011, 08:04:38 PM »
dana 44's are easy to find the parts for.  Dana 60 you can order the brackets and use caddy rear calipers. 
78 Dodge Warlock 440/727/203 11" lift D44HD/D60HD disc 5:13 L/S rear 40" Hawgs Cross-over
85 Dodge Ramcharger 360 4bbl/727/np208 shackle flip 33" TRXUS Powertrax no-slip
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Offline Elwenil

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Re: Disc brake conversion
« Reply #10 on: June 21, 2011, 08:08:50 PM »
Does your axle have ball joints or kingpins on the knuckles?  If it has ball joints it will have the large castle nut on top with a cotter pin though it like in the pics above and will be a D44.  If it has kingpins it will have a cap in the same location with four small bolts holding the cap on.  Also the steering arm on the D44s are mounted with three studs as in the pic above while the D60 axles will have the arm attached to the kingpin cap.  I'm reasonably sure you have a D44 front axle since all the D60s were disc brake so unless someone swapped in an odd D60 from another make with drum brakes, you probably have a D44.  The good news though is that you have an open knuckle axle so a swap from the knuckles out from a '80-'93 D44HD will get you everything you need for disc brakes up front.
L.Clemons

1988 Ramcharger-Mil-Spec AW450 Project-318EFI-NP435 4 speed-NP205 Transfer Case-Front & Rear Dana 60s-Braden Wormdrive Front Winch
I do not like shortcuts.  Any job worth doing is worth doing right.

Auribus Tenere Lupum

Offline Stokedpwrwagon

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Re: Disc brake conversion
« Reply #11 on: June 21, 2011, 08:28:26 PM »
Is there a pic or diagram the has a breakdown of the diff covers of the different diffs that lists which is which may by diff cover bolts etc ?
All I know is these have some steep gears 1st gear is good for maybe 5mph 2nd maybe 10-15mph etc and if ya let off the gas you gotta be careful or it'll dang near throw ya into the steering wheel!!
1973 Dodge Power Wagon Adventurer Sport 4x4 360 4speed Dana 44/Dana 60 MT wheels, Good Year Wrangler R/T IIs military tires, Hurst shifter....more to come
\\\"hey dog, did ya see the size of the chicken?!\\\"