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Drivetrain => Transmissions => Topic started by: jaredyocum on May 22, 2013, 07:23:17 PM

Title: Throw out bearing Problem
Post by: jaredyocum on May 22, 2013, 07:23:17 PM

 Guys, I am changing my trans from a 4 speed to a TKO 5 speed. I cant get the old throwout bearing to slide on though as its too tight. My old 4 speed front bearing retainer measures about .005-.007 smaller than the new one . I have had many diffrent muncies in this car over the years but it has been years between and it may be the case that I allways used the same front bearing support for this reason I cant remember. I think I can turn the new front bearing retainer down to work (1.365vs1.370)ish. The bearing is a little rattly so I would like to replace it but I am not sure where or how to go about finding/replacing it. any thoughts?

Title: Re: Throw out bearing Problem
Post by: kcombs on May 22, 2013, 09:26:33 PM

There is a company in Texas that was selling them a couple of years ago. I don't remember the name, but I am sure someone on this site will chime in with an address or website.

Title: Re: Throw out bearing Problem
Post by: jaredyocum on May 22, 2013, 09:59:29 PM

I think I have it boiled down to a national 1505 bearing .you just press it off the old center part

Title: Re: Throw out bearing Problem
Post by: dsags on May 23, 2013, 07:11:12 AM

Rock Auto sells the National 1505 for $20.79 plus shipping. " Bore=1.4995", Outer Diameter=2.7344", Width=0.625" Bearing Only "

Title: Re: Throw out bearing Problem
Post by: jaredyocum on May 23, 2013, 07:35:13 AM

Yea, I think acquiring a bearing will be no big deal and pressing it off the old center piece wont be too big a deal either , I just cant figure out how no one Else has ever had a fit problem with this bearing assembly sliding over there front trans bearing support. I measured every thing I had around any they all were 1.370 and mine (witch is apparently the original part) measures 1.365 .

Title: Re: Throw out bearing Problem
Post by: dsags on May 23, 2013, 08:33:01 AM

Measured my spare 1505 and the ID is 1.50".

Title: Re: Throw out bearing Problem
Post by: jaredyocum on May 23, 2013, 10:12:24 AM

That ID is with or without the center pressed in? ( part that has clips that rivit on )

Title: Re: Throw out bearing Problem
Post by: dsags on May 23, 2013, 10:29:47 AM

Without. Just a raw bearing.

Title: Re: Throw out bearing Problem
Post by: WkillGS on May 23, 2013, 10:33:17 AM

I swapped in a Richmond 5 speed and had the same problem. I had to have the bearing retainer turned down to the proper dimension.
I'm getting about 1.357" OD on my original retainers. A new throwout assembly is 1.365" ID.
The complete bearing assembly is:
Group 0.799 pn 1367058
Used on 1939-48, 53-60, 63-66 Nailheads

Also check the OD of the bearing retainer flange, I had to have mine turned down to fit the bellhousing. Here's a pic of the Richmond vs the original T-10:

Title: Re: Throw out bearing Problem
Post by: jaredyocum on May 23, 2013, 10:42:29 AM

Thanks ! At least I know I'm not the only one now that has seen this. I have a TKO600 Tremec, the retainer fits the bellhosing hole good just need t oturn the journal that  pilots the release bearing down to 1.357

Title: Re: Throw out bearing Problem
Post by: jaredyocum on May 23, 2013, 12:45:21 PM

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