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#1 |
Registered User
Join Date: Mar 2002
Location: southern calif.,usa
Posts: 200
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need bearing/spindle help !
a year ago i had bought a complete disc brake comversion kit off ebay. it had 2 1/2 dropped spindles and 1 1/4 drilled rotors and it included the 73-87 ball joints to make it work on my 70. i have decided to raise it back up to stock, so i went to the junk yard and got a pair of stock spindles off an 83 1/2 ton. today i started to switch them out and they bolted up to the ball joints and tie rod just fine. but the rotors won't go back on ! did some checking and the bearings are bigger i.d.on the drop spindles. what do i need to change to make this work ? i would hate to have to buy new rotors ? any ideas ?
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70 c10 stepside ,350v8, m-20 4 speed ![]() |
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#2 | |
Registered User
Join Date: Dec 2007
Location: Santa Maria, Ca.
Posts: 1,423
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Re: need bearing/spindle help !
Quote:
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#3 |
Registered User
Join Date: Mar 2002
Location: southern calif.,usa
Posts: 200
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Re: need bearing/spindle help !
i'm wondering if the 1" rotors have a differant bearings ?
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70 c10 stepside ,350v8, m-20 4 speed ![]() |
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#4 |
Hollister Road Co.
Join Date: Apr 2005
Location: Houston
Posts: 6,134
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Re: need bearing/spindle help !
The outer is the same on both - BCA A3, You need an BCA A5 set for the 83 inner, also get a BCA 8871 seal. Replace the cup and the bearing and you'll be ok. The 1" rotors are A3 outer and A6 inner. A6 is a smaller ID bearing and a shorter cup.
Last edited by dwcsr; 12-25-2008 at 05:54 PM. |
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#5 |
Registered User
Join Date: Mar 2002
Location: southern calif.,usa
Posts: 200
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Re: need bearing/spindle help !
well i just went and bought the a5 bearings and they are way to sloppy for the spindles. i'll take them back and see if the a3 bearings will work. i hope i can keep my 1 1/4 rotors.
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70 c10 stepside ,350v8, m-20 4 speed ![]() |
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#6 |
Project Junkie! Fishing Poor!!
![]() Join Date: Dec 1999
Location: Olympia,Wa. 98512
Posts: 10,770
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Re: need bearing/spindle help !
Sounds like you purchased some light duty spindles off of the junk yard truck. It probably has 1" spindle pins and if so the 1 1/4" rotors will not work on them. You need spindles with 1 1/4" pins. WES
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#7 |
Registered User
Join Date: Mar 2002
Location: southern calif.,usa
Posts: 200
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Re: need bearing/spindle help !
yep your right. i called the place that made the spindles. they said every thing is differant between light duty and heavy duty,(1" vs 1 1/4").including the calipers,bearings.rotors...so i went back to the junk yard and found a 79 with 1 1/4 rotors,so i grabed the spindles and slid my bearing over it to make sure. now i'm back in bussiness. it was also a lot cheaper than buying everything for the 1" spindles.
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