jfish Posted July 10, 2022 Report Share Posted July 10, 2022 Now if you want a Scarebird kit to convert your P15 to disc brakes only the ECONOMY kit (DGE 30) is available. The main thing here is that you don't get those nice aluminum hubs. You must reuse the hubs from your brake drums. First photo shows grinding the heads off the rivets that hold the hub to the drum. I then drilled the rivets a 3/16" deep and the hub fell out. Don't forget to buy new seals for the inner hub bearings. The old one will be destroyed when you remove them. Next photo shows the passenger hub. To fit this into the rotor Scarebird specifies you must reduce the hub diameter to about where the red line is drawn. The next problem is getting studs for your hubs. Quote Link to comment Share on other sites More sharing options...
jfish Posted July 10, 2022 Author Report Share Posted July 10, 2022 The passenger side hub is easy to adapt to studs. I used 1/2-20 button head screws 2" long as shown here. I will loctite them in place. Buy a set of 1/2-20 lug nuts also. The driver side is more of a problem as the threads in the hub are left handed. Finding left handed studs or threaded rod is very difficult. The next picture shows the 10 bosses on the back of the hub. I am going to drill out the rivet bosses and tap them for 1/2-20 Right handed threads and use the button head screws like the passenger side hub. The rivet bosses are on the same 4.5" bolt circle as the original threads and spaced just the same. 2 Quote Link to comment Share on other sites More sharing options...
Sam Buchanan Posted July 10, 2022 Report Share Posted July 10, 2022 1 hour ago, jfish said: I am going to drill out the rivet bosses and tap them for 1/2-20 Right handed threads and use the button head screws like the passenger side hub. The rivet bosses are on the same 4.5" bolt circle as the original threads and spaced just the same. Clever solution, looks good. 1 Quote Link to comment Share on other sites More sharing options...
Dansk Posted July 15, 2022 Report Share Posted July 15, 2022 Your solution seems best. Another option for replacing a 1/2-20 thread is to go up slightly with an M14x1.5 metric thread. The tap drill size is 0.500" so it cleans out the old thread and metric lug nuts are readily available. I measured my original wheels and the lug holes will accommodate the 14mm size. I stumbled on this because I wanted to run chrome lug bolts on my '51 Chrysler and they are not available in 1/2-20 but Audi runs a lug bolt in the metric size. 1 Quote Link to comment Share on other sites More sharing options...
moparfun Posted July 16, 2022 Report Share Posted July 16, 2022 I like the direction your going (disc) but I'm reminded when I was a young guy and did this to my front drums on a 38 Dodge pickup (which I still have) only I used grade 8 bolts with no locktite. I Changed the rears on my 50 to accommodate the mags, I drilled the holes out and pressed lug bolts in. 1 Quote Link to comment Share on other sites More sharing options...
moparfun Posted July 16, 2022 Report Share Posted July 16, 2022 Oh yea the lugs I used were doorman 610-446 Quote Link to comment Share on other sites More sharing options...
grea235 Posted July 17, 2022 Report Share Posted July 17, 2022 On 7/15/2022 at 6:57 PM, moparfun said: Oh yea the lugs I used were doorman 610-446 So with these studs, you just drilled out the threads with 1/2 and pressed them in? Just confirming. I ordered the econ kit and the only thing I'm pondering is the stud situation. Quote Link to comment Share on other sites More sharing options...
Sam Buchanan Posted July 17, 2022 Report Share Posted July 17, 2022 Yes, these are press-in studs. 1 Quote Link to comment Share on other sites More sharing options...
moparfun Posted July 17, 2022 Report Share Posted July 17, 2022 Make sure you measure the smallest portion of the knurl on the lug bolt so you can drill out your hub for a tight fit when you press it in. Quote Link to comment Share on other sites More sharing options...
grea235 Posted July 17, 2022 Report Share Posted July 17, 2022 Makes sense. I will do that. Thank you both! Quote Link to comment Share on other sites More sharing options...
Doug&Deb Posted July 17, 2022 Report Share Posted July 17, 2022 It’s a shame that he’s not supplying the hubs anymore. My kit was much easier to install and should the need arise I still have the original parts. It was truly a bolt on. Quote Link to comment Share on other sites More sharing options...
Sam Buchanan Posted July 17, 2022 Report Share Posted July 17, 2022 2 hours ago, Doug&Deb said: It’s a shame that he’s not supplying the hubs anymore. My kit was much easier to install and should the need arise I still have the original parts. It was truly a bolt on. I must have gotten one of if not the last of the full kits for my P15: https://p15-d24.com/topic/58096-scarebird-disc-brake-conversion-p15/#comment-625750 Yes, it is nice to be able to keep the original parts intact even though I have no intention of reverting back to the drums. If a machine shop is hired to drill and install the studs and machine the diameter of the hubs, and new bearings and seals are purchased the economy kit may end up costing more than the 'full' kit. Quote Link to comment Share on other sites More sharing options...
nonstop Posted July 18, 2022 Report Share Posted July 18, 2022 So, maybe a stupid question on this one. My kit is older and uses Diplomat rotors. But I am considering discs for my truck. Why could one not use the factory lug bolts instead of studs? Might be a little more nuisance when lining up the wheels to put them on, but could this work? Quote Link to comment Share on other sites More sharing options...
Sniper Posted July 18, 2022 Report Share Posted July 18, 2022 10 hours ago, nonstop said: Might be a little more nuisance when lining up the wheels to put them on, but could this work? Having just done that lining up with past weekend, it's a PITA. Especially with oversized tires, like P255/52R17's. If you swap in a rotor it'll have to line up as well. Someone mentioned making an alignment stud to screw into the threaded hole to help. Great idea, until I priced LHT bolts in the 1/2-20 size, very expensive, Quote Link to comment Share on other sites More sharing options...
48ply1stcar Posted July 18, 2022 Report Share Posted July 18, 2022 I did my Scarebird installation installation in March of 2020. I guess I can stop bragging about the kit now. Quote Link to comment Share on other sites More sharing options...
Sam Buchanan Posted July 18, 2022 Report Share Posted July 18, 2022 (edited) Update: Aluminum hubs are still available for the budget kit as an upgrade: https://scarebird.com/index.php?route=product/product&path=64&product_id=282 $319.58 Edited July 18, 2022 by Sam Buchanan 1 Quote Link to comment Share on other sites More sharing options...
grea235 Posted July 18, 2022 Report Share Posted July 18, 2022 I saw the hubs. I'm passing on them for now. I'm going to go with my own hubs and not stud them unless I absolutely have to. I assumed that they had to get studded for clearance, but apparently not. I can trim down the hub flange. I have the economy DGE G30 coming. I asked for the install guide and they emailed it to me. Ordered all Raybestos off of Rock auto. 179 for everything including shipping. Don't need the dust caps. Calipers are rebuilds and the picture shows pins as well. We'll see. If it helps anyone, this is what they listed for the DGE G30: Part Application NAPA Wagner Raybestos Rotor 1993-96 Ford Probe front 4886318 BD125274 96318(R) Caliper, LH 1979-85 Cad. Eldo front SE4680 TQM25048 RC5248 Caliper, RH 1979-85 Cad. Eldo front SE4679 TQM25049 RC5247 Brake Hose (15”)* 1979 Seville front 36845 F98912 BH36845 Brake Hose (17”)* 1979-82 El Dorado front 36959/36960 F98914/98914 BH36959/3696 Brake pads 1983-92 S10 4WD TS7070AM MX154 EHT154 Dust cap 1983-2010 Ranger 2WD NAPA 735142 Dorman 618-503 1 Quote Link to comment Share on other sites More sharing options...
OUTFXD Posted July 20, 2022 Report Share Posted July 20, 2022 Looking at this as a possible conversion for Jacquiline. My question. Does the kit come with Disks and calipers or are you expected to buy them seperately? Quote Link to comment Share on other sites More sharing options...
grea235 Posted July 20, 2022 Report Share Posted July 20, 2022 This is what's in the 'kit': PLY G30 brackets (2) 9/16 x 3” HHCS (2) 9/16 x 2-1/2” HHCS (2) 9/16 x 1-3/4” HHCS (6) 9/16 hex nuts (6) 9/16 lock washers (2) Metric Banjo bolts (2) Cotter pins (2) Hose locks Everything else has to be purchased separately. 2 Quote Link to comment Share on other sites More sharing options...
DakotaFrank Posted July 23, 2022 Report Share Posted July 23, 2022 What years does the G30 kit fit? Will it fit 1954? Quote Link to comment Share on other sites More sharing options...
Purple Moo Cow Posted July 23, 2022 Report Share Posted July 23, 2022 If you purchase the kit to upgrade to disc, you need to upgrade your master cylinder as well right? Quote Link to comment Share on other sites More sharing options...
junkers72 Posted July 23, 2022 Report Share Posted July 23, 2022 I put a brand new stock replacement master cylinder on my 47 DeSoto with the Scarebird kit . I removed the valve from the master cylinder as recommended and added an inline 2 lb residual valve to front brakes and 10 lb inline to rear which are drum . The brakes work very well . 1 1 Quote Link to comment Share on other sites More sharing options...
Purple Moo Cow Posted July 23, 2022 Report Share Posted July 23, 2022 8 hours ago, junkers72 said: I put a brand new stock replacement master cylinder on my 47 DeSoto with the Scarebird kit . I removed the valve from the master cylinder as recommended and added an inline 2 lb residual valve to front brakes and 10 lb inline to rear which are drum . The brakes work very well . Dang...ok cool, thanks Quote Link to comment Share on other sites More sharing options...
curtisw Posted July 23, 2022 Report Share Posted July 23, 2022 Just ordered the disc kit for my '50 Plymouth, along with the aluminum hubs. I'm planning to replace the master cylinder with a 70s Mustang dual chamber unit, year tbd. I think I'll try gutting the stock m/c and extending the pushrod to the new one, as others have done here. I figure if you're going to upgrade the brakes you might as well do the master as well. My $.02 1 Quote Link to comment Share on other sites More sharing options...
jfish Posted July 23, 2022 Author Report Share Posted July 23, 2022 On 7/18/2022 at 3:44 PM, Sam Buchanan said: Update: Aluminum hubs are still available for the budget kit as an upgrade: https://scarebird.com/index.php?route=product/product&path=64&product_id=282 $319.58 $320 may not be a bad price to pay. I will have to get a quote from my machine shop to compare. Quote Link to comment Share on other sites More sharing options...
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