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Speedway front disc conversion

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Old Feb 18, 2022 | 11:35 AM
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Speedway front disc conversion

I started rotor installation today. I torqued the caliper brackets and started to grease and install the inner bearings and seals. The rotor would not go back far enough to get the hub nut started. The Speedway kit comes with a spacer that goes against the outer bearing before the washer. I need to contact Speedway tomorrow to see if using the spacer is optional. The problem seems to be with the inner cone bearing not fitting over the spindle adapter. The quality of the bearings is not the best (read China) so I am going to look for better quality replacements tomorrow.
 
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Old Feb 18, 2022 | 12:10 PM
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It sounds like you may have defective or mis-made parts. The inner bearing and spindle adapter should fit together, as that's its intended purpose. If they don't fit, something is wrong. The adapter should be a tight fit on the spindle, and go all the way to the back where the bearing would ride. Then the hub/rotor/bearing assembly should fit in place no different than any other application.
 
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Old Feb 18, 2022 | 03:45 PM
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Spindle adapter fitment

Originally Posted by 52 Merc
It sounds like you may have defective or mis-made parts. The inner bearing and spindle adapter should fit together, as that's its intended purpose. If they don't fit, something is wrong. The adapter should be a tight fit on the spindle, and go all the way to the back where the bearing would ride. Then the hub/rotor/bearing assembly should fit in place no different than any other application.
I measured the OD of the spindle adapter and the ID of the inner bearing before calling Speedway tech servives this morning.

 
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Old Feb 18, 2022 | 03:56 PM
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Spindle adapter fitment

Originally Posted by 52 Merc
It sounds like you may have defective or mis-made parts. The inner bearing and spindle adapter should fit together, as that's its intended purpose. If they don't fit, something is wrong. The adapter should be a tight fit on the spindle, and go all the way to the back where the bearing would ride. Then the hub/rotor/bearing assembly should fit in place no different than any other application.
I measured the OD of the spindle adapter and the ID of the inner bearing before calling Speedway tech servives this morning; the bearing being 10.62 thousands smaller than the spindle diameter. Speedway did not have the measurement spec for the OD of their spindle adapter but I did receive their proper inner bearing that"should fit".
I bought replacement bearings and seals from Napa today, with slightly larger bearing ID but still not a slip fit on the spindle.

My recourse seems to be to take material off the spindle adapter until I can slide the inner bearing on. I'll use emory paper and test fit until I get there.


 
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Old Feb 18, 2022 | 04:59 PM
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Had the same issue when I did my disk upgrade... made a jig to hold the adaptor to my hand drill, clamped to a bench vise and Emory cloth the race to fit. My adaptors fit so loose on the spindle I ended up tac welding them to keep from spinning. Six years in with no problems..... so far.
 
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Old Feb 18, 2022 | 05:18 PM
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Originally Posted by moejr
Had the same issue when I did my disk upgrade... made a jig to hold the adaptor to my hand drill, clamped to a bench vise and Emory cloth the race to fit. My adaptors fit so loose on the spindle I ended up tac welding them to keep from spinning. Six years in with no problems..... so far.
The adapters are a tight fit used heat to slip them on. I will try using emory cloth, by hand. Should work with time.
 
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Old Feb 18, 2022 | 08:52 PM
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Way back when, when I did my 49. I bought the basic kit from ECI (Engineered Components Inc). It was basically the spindle adapters, caliper bracket and bolts. I had read several threads about it and made me a spindle adapter driver tool out of some 1 1/2" pipe. I put the spindle adapters in the oven at 450 degrees for about 30 minutes. Once they were heated I, one at a time, took one out and slipped in on the spindle. I few taps with my home made driver and they were seated in place. I had tried to fit the adapters on the spindles before heating and there was not way. I might have been able to seat them with the driver but I didn't want to chance tweaking them (they are kind of thin).

When I helped my buddy install his, he had bought the complete kit from Speedway motors. On his we didn't have to heat the spindle adapters. One of them was a snug fit and we had to tap in into place with my driver. The other side was ever so slightly loose. I used a center punch and peened the spindle in a few spots and then drove the adapter into place. The thing has tons of miles on it now and we've never had an issue.
Bobby
 
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Old Feb 18, 2022 | 09:53 PM
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Originally Posted by bobbytnm
Way back when, when I did my 49. I bought the basic kit from ECI. I had tried to fit the adapters on the spindles before heating and there was not way. I might have been able to seat them with the driver but I didn't want to chance tweaking them (they are kind of thin,,)
Bobby
They are thin but I think with a little elbow grease I will get the inner bearings to slip on. Too easy with no tweaking just wouldn't be any fun.
 
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Old Feb 18, 2022 | 10:22 PM
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Yup, if I didn't take 1 step forward and 3 steps back I wouldn't know how to act....lol

Oh well, it will keep you busy out in the cold shop...

 
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Old Feb 19, 2022 | 06:50 AM
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I'm almost done installing a Speedway kit as well. Used the one that kept the 5x51/2 lug pattern. Had no trouble installing the bearing on the adapter. The adapter slipped on smoothly after following directions to heat 15 minutes in the 400 degree oven. When cool it tightened right up.
Could it be that they sent the wrong adapter in your kit? Their other lug pattern kits use various OEM rotors from other non Ford car companies. For example Speedway's 5x41/2 kit uses Mopar rotors.
The adapter is hard. You will be long time sanding!
 
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Old Feb 19, 2022 | 07:52 AM
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I will be installing one of these brake kits in a couple months myself.
Can you guys tell me, does the position of the wheel change in or out, or does it end up in the exact same position as with the drums?
Just curious.
 
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Old Feb 19, 2022 | 09:10 AM
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Originally Posted by Rembrant
I will be installing one of these brake kits in a couple months myself.
Can you guys tell me, does the position of the wheel change in or out, or does it end up in the exact same position as with the drums?
Just curious.
I would say, under the current situation my wheels sit outboard of stock. Lol.
 
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Old Feb 19, 2022 | 09:15 AM
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Originally Posted by turnrjr
Could it be that they sent the wrong adapter in your kit? Their other lug pattern kits use various OEM rotors from other non Ford car companies. For example Speedway's 5x41/2 kit uses Mopar rotors.
The adapter is hard. You will be long time sanding!
I spoke with the tech help line at Speedway. The guy I spoke with couldn't give me a spec on the OD dimension of their spindle adapter so I could verify the proper part was received. I could request they replace the adapter but there might be a lot of work in removing them now.
 
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Old Feb 19, 2022 | 01:02 PM
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Originally Posted by bobbytnm
Oh well, it will keep you busy out in the cold shop...
The bright side is I can create my own shop heat for no additional cost.
Temperatures go back below freezing with overnight lows of -30C. No hurry, now that I have a path forward
 
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Old Feb 19, 2022 | 07:46 PM
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Mission accomplished

I spent a little time today (about 2 1/2 hours)⁰ to get the inner bearings to fit over the spindle adapter. I started with a fine flat file, and then used 150 grit emory cloth to remove material from the spindle. I checked fitment often until I could slide the bearings onto the spindle by hand. It is a comfortably snug fit. I can remove them with slight pressure from a flat blade driver. I did a final hone with 2000 grit emory. I think that is as far as I will take them for now. The bearings turn freely, unpacked.




 
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