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Wheel cylinder removal

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Sep 18, 2019, 9:48 AM

Post #1 of 3 (662 views)
Wheel cylinder removal Sign In

1995 Buick LeSabre
135K miles
V-6 engine

There appears a very obvious need to replace the passenger side rear brake cylinder on this vehicle. Can you tell me what size external torx socket required, or is it a different tool? It appears that the clearance will be very tight to get a ratchet down in there. Just wondering about the nuances of the job from the knowledgeable moderators who've helped me many times before. Will the some suspension parts have to be removed to get a socket and ratchet of the bolt. Thank you as always.

Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 18, 2019, 12:08 PM

Post #2 of 3 (650 views)
Re: Wheel cylinder removal Sign In

I don't remember the exact size but they do make a special flat wrench for that. You can also loosen the backing plate to give you a little more room.

If you remove the hub you will have all kinds of room.


We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.

(This post was edited by Hammer Time on Sep 18, 2019, 12:09 PM)

Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

Sep 18, 2019, 12:25 PM

Post #3 of 3 (646 views)
Re: Wheel cylinder removal Sign In

That has to still be OE GM thinking or LACK of? Whacked model year so end answer is IDK and would be a Torx some bone-head thought better.
OK: Try this because I'm shocked anyone put the OE ones back. There were also assorted "backing plate" recalls to add to the IDK factor.

See if the dang line's flare nut even behaves NOW watch hard the nut turn OVER the line not twisting it up. This thing at 25 +/- years could be OK or not you do have to try that's harder to bend new line for some wheel cylinders if a real sharp curve at the end right there.
See then if whole backing plate is easier to take off with the wheel cylinder still on it? You may also find you want a new backing plate?? You'll see wear from shoes on the rub spots of plate to a "V" notch type spot on metal of shoes should be the rub spot and greased with proper grease. IF NOT they can wear a spot so shoes get caught make a snapping sound or don't behave to rub over those.
That tool if really the ones holding wheel cylinder itself you may have to go to a Snap-On dealer on line or in person it sure isn't common and I know I don't have one that size which is SHOCKING,

PS: IF this thing is nice or anyway do it up right with all new hardware well greased so never a headache again!

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