Drum rear to C5/C6 conversion plates done
12-19-2008, 04:21 AM
#51
Member
Join Date: May 2006
Location: Melbourne Australia
Posts: 330
Likes: 0
Received 1 Like
on
1 Post
Car: 88 GTA
Engine: Ls1
Transmission: 4L60E
Axle/Gears: 9 bolt 3.27
Re: Drum rear to C5/C6 conversion plates done
This is a very cool setup, how long until you get the bugs ironed out? Will you be doing a 9 bolt disc brake version?
12-19-2008, 01:30 PM
#53
Member
Join Date: May 2006
Location: Melbourne Australia
Posts: 330
Likes: 0
Received 1 Like
on
1 Post
Car: 88 GTA
Engine: Ls1
Transmission: 4L60E
Axle/Gears: 9 bolt 3.27
Re: Drum rear to C5/C6 conversion plates done
I'm not sure if they were available with drums, but the discs aren't very good, 10.5 in and a crap iron caliper.
12-19-2008, 03:54 PM
#54
Supreme Member
Thread Starter
iTrader: (7)
Join Date: Mar 2001
Location: Fort Mill, SC, USA
Posts: 6,420
Likes: 0
Received 4 Likes
on
4 Posts
Car: '88 Iroc, '91 RS, and a '70 RS
Engine: 5.7 TPI; 5.0 TBI; ZZ4/T56 on the ag
Transmission: A4, A4, slated to be a T56
Re: Drum rear to C5/C6 conversion plates done
Hopefully not too long, I'll get the spacers cut when I get back and see how the other setup works out. Some 9 bolts did get drums although they're not too common but this concept should work on both drum and disc rears as I have it now. We'll see in a couple weeks. Thanks for the patience.
Ed
Ed
01-29-2009, 01:36 AM
#55
Junior Member
Join Date: Jan 2009
Posts: 3
Likes: 0
Received 0 Likes
on
0 Posts
Re: Drum rear to C5/C6 conversion plates done
looks dam nice 
ebmiller88 im going to shoot you a pm reg info on this, as im about to under go brake upgrades.
i know im a new member but please be nice
ebmiller88 im going to shoot you a pm reg info on this, as im about to under go brake upgrades.
i know im a new member but please be nice
02-12-2009, 12:03 PM
#56
Member
Join Date: Oct 2008
Location: Palmaghetto, Florida
Posts: 194
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1991 Formula Firebird
Engine: Pontiac 355 stroker (305 TBI 4Sale)
Transmission: Pending Manual , 700r4 for sale...
Axle/Gears: Stock... for now
Re: Drum rear to C5/C6 conversion plates done
Updates?
03-10-2009, 11:23 PM
#57
Member
iTrader: (37)
Join Date: Nov 2003
Location: Ohio
Posts: 678
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1970 Nova
Engine: 850HP 383
Transmission: TH400 w/ Brake
Axle/Gears: 4.88 12 Bolt
Re: Drum rear to C5/C6 conversion plates done
Any info on the Vette ebrake setup,brackets,e brake cables?
03-27-2009, 03:19 PM
#59
Member
Join Date: Jun 2002
Location: Bluegrass State
Posts: 181
Likes: 0
Received 0 Likes
on
0 Posts
Car: 85 Trans Am
Engine: LB9
Transmission: Finally Fixed (T5)
Axle/Gears: 3.27
Re: Drum rear to C5/C6 conversion plates done
04-01-2009, 10:45 PM
#60
Member
Join Date: Oct 2006
Location: Connecticut
Posts: 239
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 IrocZ
Engine: lb9
Transmission: 5 spd
Axle/Gears: factory 9 bolt with 3.45 gears
Re: Drum rear to C5/C6 conversion plates done
Ed need your help.
I have an 87 9 bolt with the iron calipers. I would like to upgrade to either the stock aluminum calipers (89 and up) or go with the c5 calipers. What would i need to do to get the stock aluminum calipers to work? what would i need to do to get the c5 calipers to work? advantages or each? Thanks! Here's a couple pics of my backing plates, so you can see what is currently equipped.
I have an 87 9 bolt with the iron calipers. I would like to upgrade to either the stock aluminum calipers (89 and up) or go with the c5 calipers. What would i need to do to get the stock aluminum calipers to work? what would i need to do to get the c5 calipers to work? advantages or each? Thanks! Here's a couple pics of my backing plates, so you can see what is currently equipped.
Last edited by 1987CamaroZ28; 04-01-2009 at 11:03 PM.
04-02-2009, 04:31 PM
#64
Re: Drum rear to C5/C6 conversion plates done
You have the same rear end as i have (iron calipers) where the dr. side is trailing and the pass side is leading. You will need new backing plates to mount the calipers, as they are trailing. You'll also need new parking brake cables and new hard lines (or fab some yourself).
04-03-2009, 11:04 AM
#65
Member
Join Date: Oct 2006
Location: Connecticut
Posts: 239
Likes: 0
Received 0 Likes
on
0 Posts
Car: 1987 IrocZ
Engine: lb9
Transmission: 5 spd
Axle/Gears: factory 9 bolt with 3.45 gears
Re: Drum rear to C5/C6 conversion plates done
You have the same rear end as i have (iron calipers) where the dr. side is trailing and the pass side is leading. You will need new backing plates to mount the calipers, as they are trailing. You'll also need new parking brake cables and new hard lines (or fab some yourself).
This is helpful, thansk man.
04-05-2009, 09:25 PM
#67
Supreme Member
iTrader: (18)
Join Date: Dec 2007
Location: Minnesota
Posts: 1,924
Likes: 0
Received 12 Likes
on
9 Posts
Car: 84 camaro, 88 trans am, 98 camaro
Engine: Modded , stock, LSX modded
Transmission: 700r4, 700r4, t-56
Axle/Gears: 327, 308, 373
Re: Drum rear to C5/C6 conversion plates done
Iv had a few 9 bolts i would think it would be fairly easy to make some type of bracket. when i was painting one with discs i also pulled a 4thgen rear out of my friends car to replace it with something better from what i can remember the 10 bolt 4thgen rear i pulled with discs has the same axle housing flange as the 9 bolt like this 
i was going to take them both apart to see if they would bolt up but never got around to it. anyone know if there the same flange design?
i was going to take them both apart to see if they would bolt up but never got around to it. anyone know if there the same flange design?
04-05-2009, 09:28 PM
#68
04-11-2009, 10:57 PM
#69
Supreme Member
iTrader: (18)
Join Date: Dec 2007
Location: Minnesota
Posts: 1,924
Likes: 0
Received 12 Likes
on
9 Posts
Car: 84 camaro, 88 trans am, 98 camaro
Engine: Modded , stock, LSX modded
Transmission: 700r4, 700r4, t-56
Axle/Gears: 327, 308, 373
Re: Drum rear to C5/C6 conversion plates done
anyone on the above?
05-27-2010, 10:50 AM
#72
Senior Member
iTrader: (2)
Join Date: Jan 2007
Location: jackson new jersey
Posts: 733
Likes: 0
Received 1 Like
on
1 Post
Car: 1991 camaro vert
Engine: ls1 soon
Transmission: t56 soon
Axle/Gears: moser 12bolt 4.10 soon!
Re: Drum rear to C5/C6 conversion plates done
how much for these brackets shipped to 08514 please pm
05-27-2010, 06:46 PM
#73
Member
Join Date: May 2006
Location: Melbourne Australia
Posts: 330
Likes: 0
Received 1 Like
on
1 Post
Car: 88 GTA
Engine: Ls1
Transmission: 4L60E
Axle/Gears: 9 bolt 3.27
Re: Drum rear to C5/C6 conversion plates done
Iv had a few 9 bolts i would think it would be fairly easy to make some type of bracket. when i was painting one with discs i also pulled a 4thgen rear out of my friends car to replace it with something better from what i can remember the 10 bolt 4thgen rear i pulled with discs has the same axle housing flange as the 9 bolt like this 
i was going to take them both apart to see if they would bolt up but never got around to it. anyone know if there the same flange design?
i was going to take them both apart to see if they would bolt up but never got around to it. anyone know if there the same flange design?
05-27-2010, 06:52 PM
#74
Supreme Member
iTrader: (11)
Join Date: Sep 1999
Location: NJ
Posts: 4,345
Received 298 Likes
on
234 Posts
Car: 92 Firebird
Engine: 4.8 LR4
Transmission: T56
Axle/Gears: 3.45 9 Bolt
Re: Drum rear to C5/C6 conversion plates done
All 10 bolts have the same flange for disc brakes. The 9 bolt is the one with the different flange but if you swap the 10 bolt ones laft to right you can re-drill them for the 9 bolt pattern so none of the holes overlap. I did it with the BAER 10 bolt backing plate for the PBR setup, I put them on my 9 bolt because BAER wanted a lot of money for the backing plates
09-27-2010, 12:06 AM
#76
Re: Drum rear to C5/C6 conversion plates done
I was wondering if you ever finished the drum to C5 disc plates with the parking brake set-up like you have pictured here? I looked on your web site and didnt find anuthing other than the ones you have posted at the beginning of this post. I am very interested in the ones posted here towards the end. Your parts look top notch! Keep up the GREAT work, Thanks
08-15-2011, 09:32 PM
#77
Junior Member
Join Date: Aug 2011
Posts: 10
Likes: 0
Received 0 Likes
on
0 Posts
Re: Drum rear to C5/C6 conversion plates done
I know this is an old thread but i was wondering if you have this plate kit for the disc rear ends. pleas let me know, Im really interested in getting my hands on these if not ill have to make them. im going to use the C6 Z06 brakes with the parking brake or maybe i could use a hydraulic parking brake and not have to us the factory parking brake. Let me know what you think. THANKS
Thread
Thread Starter
Forum
Replies
Last Post
1992 Trans Am
History / Originality
27
05-10-2023 07:19 PM
3rdgenparts
Firebirds for Sale
0
08-06-2015 09:03 AM
