1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Swapping 83 12A front brakes to GSL-SE

Thread Tools
 
Search this Thread
 
Old 11-30-10, 12:02 AM
  #1  
Full Member

Thread Starter
 
Donovan N.'s Avatar
 
Join Date: Nov 2010
Location: York, PA
Posts: 181
Likes: 0
Received 0 Likes on 0 Posts
Swapping 83 12A front brakes to GSL-SE

Hi, I have an 83 12A, and was planning on converting it to GSL-SE susp., after looking at some diagrams and comparing part numbers, it seems like the 12A and GSL-SE use the same wheel bearings and seals. So I was wondering if anybody knows if I can just buy SE rotors, Calipers, and dust shield, since the spindles should be the same or do I need to buy SE spindles as well? Any help would be appreciated.
Attached Thumbnails Swapping 83 12A front brakes to GSL-SE-gsl-se.jpg  
Old 11-30-10, 12:05 AM
  #2  
RX for fun

iTrader: (13)
 
Siraniko's Avatar
 
Join Date: Aug 2001
Location: Socal
Posts: 15,926
Likes: 0
Received 22 Likes on 19 Posts
spindles are the same for SE and non-SE models
Old 11-30-10, 12:26 AM
  #3  
The Shadetree Project

iTrader: (40)
 
Hyper4mance2k's Avatar
 
Join Date: Jul 2002
Location: District of Columbia
Posts: 7,301
Received 3 Likes on 3 Posts
84-85 All spindles are the same. 79-83 are a smaller bearing than 84-85 and therefore a smaller spindle. At least that's what I've observed.
Old 11-30-10, 01:08 AM
  #4  
Full Member

Thread Starter
 
Donovan N.'s Avatar
 
Join Date: Nov 2010
Location: York, PA
Posts: 181
Likes: 0
Received 0 Likes on 0 Posts
OK, your right Hyper, follow up question, does anybody know where to buy spindles, I can't find any thing online, and conveniently enough mazda doesn't list a part number
Old 11-30-10, 01:15 AM
  #5  
RX for fun

iTrader: (13)
 
Siraniko's Avatar
 
Join Date: Aug 2001
Location: Socal
Posts: 15,926
Likes: 0
Received 22 Likes on 19 Posts
Originally Posted by Hyper4mance2k
84-85 All spindles are the same. 79-83 are a smaller bearing than 84-85 and therefore a smaller spindle. At least that's what I've observed.
bearings are different but not the spindle
Old 11-30-10, 12:44 PM
  #6  
Full Member

Thread Starter
 
Donovan N.'s Avatar
 
Join Date: Nov 2010
Location: York, PA
Posts: 181
Likes: 0
Received 0 Likes on 0 Posts
If anybody has spindles from both to measure and compare that would be great
Old 11-30-10, 06:57 PM
  #7  
Boosted Soon

iTrader: (1)
 
Twilightoptics's Avatar
 
Join Date: Nov 2008
Location: Auburn, WA
Posts: 581
Likes: 0
Received 1 Like on 1 Post
Why not buy the inner/outer bearings, and slide them on your spindle?

I'm interested in this too as a GSL-SE rear end is in my somewhat near future and want the front to match.
Old 11-30-10, 09:20 PM
  #8  
Full Member

Thread Starter
 
Donovan N.'s Avatar
 
Join Date: Nov 2010
Location: York, PA
Posts: 181
Likes: 0
Received 0 Likes on 0 Posts
OK, just to clarify, the inner bearings are all the same, and the outer bearings on 84-85 are larger than 79-83, but anyway, problem solved, i am buying SE front susp., sub-frame, and possibly rear end tomorrow, thanks for the insight guyshttp://www.napaonline.com/Search/Detail.aspx?A=BRGBR1_0074143111&An=599001+101983+5 0042+2042026+11045+599999+109999+59999+3999999
Old 11-30-10, 09:23 PM
  #9  
Full Member

Thread Starter
 
Donovan N.'s Avatar
 
Join Date: Nov 2010
Location: York, PA
Posts: 181
Likes: 0
Received 0 Likes on 0 Posts
http://www.napaonline.com/Search/Det...+59999+3999999
Old 12-01-10, 05:52 PM
  #10  
Boosted Soon

iTrader: (1)
 
Twilightoptics's Avatar
 
Join Date: Nov 2008
Location: Auburn, WA
Posts: 581
Likes: 0
Received 1 Like on 1 Post
Okay the outer bearings on the SE are larger or 84-85 in general?

Plus, is it the OD or the ID that is larger?
Old 12-01-10, 07:13 PM
  #11  
Moderator

iTrader: (3)
 
j9fd3s's Avatar
 
Join Date: Mar 2001
Location: https://www2.mazda.com/en/100th/
Posts: 30,796
Received 2,574 Likes on 1,830 Posts
Originally Posted by Hyper4mance2k
84-85 All spindles are the same. 79-83 are a smaller bearing than 84-85 and therefore a smaller spindle. At least that's what I've observed.
Originally Posted by Twilightoptics
Okay the outer bearings on the SE are larger or 84-85 in general?

Plus, is it the OD or the ID that is larger?
the ID is bigger on the bearing, so probably the OD too
Old 12-02-10, 03:58 PM
  #12  
Full Member

Thread Starter
 
Donovan N.'s Avatar
 
Join Date: Nov 2010
Location: York, PA
Posts: 181
Likes: 0
Received 0 Likes on 0 Posts
Yes, the I.D., O.D., and width of the outer bearing are larger on all 84-85
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
BNR34RB26DETT
Build Threads
42
02-28-18 11:27 AM
Frisky Arab
2nd Generation Specific (1986-1992)
13
08-18-15 05:30 PM



Quick Reply: Swapping 83 12A front brakes to GSL-SE



All times are GMT -5. The time now is 04:55 PM.