help with disc brake conversion question
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New User
Joined: Feb 2005
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help with disc brake conversion question
I have a disc brake conversion kit for my 56 and the bearing adapters look to small for the stock spindle. I know alittle heat would help but these adapters won't even slide up to the flat part of the spindle. Is it possible that my spindles are off an f-250 or something? The bearing slides on the adapter just fine. Can anyone help me out? thanks
Freshman User
Joined: Feb 2004
Posts: 31
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From: Olympia, WA
Same Problem
I have the same problem with my bearing adaptor from CPP. I have heated with a torch and tried to apply and it went on about 1/8 inch. Finally, got it back off and now the king pin wiggles due to the tapping and beating to get the damn adaptor back off. Just for fun I heated again in the oven at 425 degrees and it went on about 1/4 inch. It is stuck.
I am giving up and taking the whole axle to a shop to have the king pin assembly repaired and have them put the adaptors on.
So much for just heating and sliding them on like many others have experienced. Nothing seems easy....
I am giving up and taking the whole axle to a shop to have the king pin assembly repaired and have them put the adaptors on.
So much for just heating and sliding them on like many others have experienced. Nothing seems easy....
Posting Guru
Joined: Aug 2000
Posts: 1,849
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From: S.C.
I did the disc brake conversion about 11 years ago on my 55 the adapter is to small I had to boil it in hot water (recommended from the company I brough it from) then tapped it on with a mallot. I've never had any problems with them since putting them one.
Jaye
Jaye
Fleet Mechanic
Joined: Jun 2004
Posts: 1,784
Likes: 45
From: Minnesota
I am not sure what your instruction said, mine said to slide the adapter on as far as possible then press the rest of the way on. I used a pipe the appropriate size and beat it on with a large hammer. This would be a good time to remove the king pin anyway check things out. Then put the spindle in the freezer at its coldest setting and heat the adapter in the oven on high.
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New User
Joined: Feb 2005
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thanks for the info guys. My instructions say to use a pipe and a 2-3 pound hammer to install or use a press. I to am afraid that I'll get them on part way and thats it. I geuss I'll have to just give it a try and see what happens.
Senior User
Joined: Jul 2003
Posts: 233
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I did mine a few years ago. It's a CPP kit. They stated that I should put the adapter on a light bulb and heat it up. I eneded up putting them into the oven at super freakin hot and they still wouldn't go on easy. I used a BFH and sleeve finally. If I'd a had a lathe, I would've taken a few thousandths out of the ID made it less of an interference fit.
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Postmaster
Joined: Apr 2004
Posts: 3,005
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From: Santa Clarita
I used a pair of channel lock pliers to merely hold the adapter to the spindle. Then I fired up the gas torch and gently heated the adapter while applying pressure to the adapter with the pliers. The adapter slipped right on at a certain temperature. As soon as it cooled, it was tight.
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Elder User
Joined: Feb 2005
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From: HANNIBAL MO.
Thanks for asking that question.I have one of the ccp kits to.I have not installed it yet.Waiting on my spindle bushing to be reamed.You just saved me from beating on the adapter.This site is great.
ART
ART
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New User
Joined: Feb 2005
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ok here's the measurements I got. spindle at rear bearing surface is 1.310"and inside of adapter is 1.187" that is a difference of .123" now that is what I call an interference fit. I am going to ask the supplier if these measurements sound right before I try and force these on. I know they need to be tight but that seems like alot.
Senior User
Joined: Aug 2004
Posts: 327
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From: Los Angeles
There's no amount of boiling water that will stretch that poor thing out and eighth of an inch. I don't know that you could even get that on with a shop press. My guess is that someone swapped out the front with 3/4 ton parts. That's exactly the case with my '53.