Jump to content

Welcome to Ultimate Subaru Message Board, my lurker friend!

Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.

We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
  • Say hello and join the conversation
  • Subscribe to topics and forums to get automatic updates
  • Get your own profile and make new friends
  • Classifieds with all sorts of Subaru goodies
  • Photo hosting in our gallery
  • Meet other cool people with cool cars
Seriously, what are you waiting for? Make your life more fulfilling and join today! You and your Subaru won't regret it, we guarantee** it.

* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!

Serving the Subaru Community since May 18th, 1998!

Guest Message by DevFuse

- - - - -

rear disc brake conversion problems need help!!????

  • Please log in to reply
6 replies to this topic

#1 85wagon


    USMB Regular

  • Members
  • PipPipPip
  • 59 posts
  • eugene

Posted 09 March 2011 - 04:25 PM

:banghead:im putting a set of rear disc brakes from a turbo model on my 85 gl,im having 2 problems #1. the brake pads only contact maybe an inch of the rotor leaving a half inch of the pad untouched by the rotor, the rotor is just under 9inch diameter #2 the bolts that hold the caliper bracket onto the backing plate are 1 1/2 inches long, so if i bolt them all the way tight they will be rubbing on the back of the rotor. so my questions are: am i putting these on wrong? or do i have the wrong backing plate or calipers?
:banghead: if the rear disc brakes are suppose to only have an inch of the pad touching the rotor leaving a half inch of the pad untouched anyone wanna buy a set of rear disc brakes lol:D

#2 Caboobaroo


    USMB Drunk

  • Members
  • 7,157 posts
  • Oregon City

Posted 09 March 2011 - 06:00 PM

it almost sounds like you have XT6 backing plates as they are larger for the larger XT6 rotors. As for the bolts, its probably because the backing plate is putting the caliper up too high which is why they want to contact the face of the rotor.

#3 ruparts


    Subaru Nut

  • Members
  • 565 posts
  • hooper, co

Posted 09 March 2011 - 07:34 PM

hi ,
you are using the wrong bolts to bolt the calipers on the backing plate/ caliper mount , the proper ones are shorter and do not stick through and rub. look for the white paint on the head. the part about the caliper being out too far and the pads not making full contact is only if you are using something other than 4-stud ea-82 xt/car/wagon backing plates ,, the xt6 plates will cause this because they use a bigger rear rotor than the 4-stud ones on ea-82 vehicles, and i don't know about ej parts. but if you get backing plates from a 4-stud xt / car / wagon the calipers/ pad fit will be correct.

#4 85wagon


    USMB Regular

  • Members
  • PipPipPip
  • 59 posts
  • eugene

Posted 09 March 2011 - 07:41 PM

will the xt6 ones work with the proper rotors or am i hosed? these rotors are 8.89 inches, do you think if i went and bought the xt6 rotors which are 10.07 around will work? i just wonder if the rear hub off the wagon will fit inside the xt6's rotor. and too think i thought this was a plugg and play sort of a gig....... nothing you think will be easy is EVER easy lol 1st rule of mechanics easy=:banghead:

Edited by 85wagon, 09 March 2011 - 07:51 PM.

#5 NoahDL88


    Elite Master of Cookies

  • Members
  • 4,271 posts
  • Everett, WA, USA

Posted 09 March 2011 - 08:02 PM

The XT-6 won't fit on the standard 4 lug rotors, but you can either keep them to do a 5 lug swap down the road, or trade them for the "regular" backing plates and a case of beer, if'n your old enough

#6 Numbchux


    EJ conversion addict

  • Members
  • 6,719 posts
  • Saginaw, MN

Posted 09 March 2011 - 08:03 PM

XT6s are 5-lug, and have a very different rotor design.

Something definitely isn't right, but we're just shooting in the dark....can you get some pictures of what you've got? then we might be able to tell if you've got the wrong parts, or maybe have them together wrong...

#7 85wagon


    USMB Regular

  • Members
  • PipPipPip
  • 59 posts
  • eugene

Posted 10 March 2011 - 09:50 AM

they are xt6 backing plates the guy i got them from just e-mailed me and said he did have xt6 parts lying around, i really appriciate the help. i was lost and i found usmb and im so gratfull!!! thank you kindly all!

Edited by 85wagon, 10 March 2011 - 09:59 AM.

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users