No good...brakes kinda suckin' - Chevy Impala SS Forum
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post #1 of 42 (permalink) Old 06-14-2018, 02:57 PM Thread Starter
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No good...brakes kinda suckin'

So yesterday some woman oblivious to fact that someone was in the lane next to her when she moved over.
I absolutely despise how folks drive these days, they're just clueless and have zero common sense. They don't pay attention, and way too many are on their damn phones.

I had to stand on the binders to avoid a nasty collision ~75MPH.
Fronts locked, rears did not, zero evidence of any ABS functionality.

By some miracle, I was able to avoid getting rammed into/sideswiped.

However, I am not too happy with the brake system.
Going to need to do some investigation and see what's up there.

Here are some pics of the skid marks, should have seen the white cloud!



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post #2 of 42 (permalink) Old 06-14-2018, 03:10 PM
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Bet rear "sliders" are seized,and have been for some time... Making them all but useless. An inspection will reveal the inboard pads thinner than outboard pads... I removed the ABS years ago. It's quite primitive by today's standards. If it's working for you fine. If not,it isn't worth fixing in my opinion. It can be easily removed,as many (including myself) have done...

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post #3 of 42 (permalink) Old 06-14-2018, 03:29 PM Thread Starter
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I don't think it(ABS) works @ all, never felt any indications yet anyway.
It's been on my list to yank all of it, just haven't gotten around to it.

Brakes are all new, sliders? if referring to front calipers, they're new, bushings too. Should have mentioned this is on a wagon w/ drums in the rear.
No feel or evidence the drums locked, so ???

I'll add they worked well enough to slow way down/way fast and avoid a collision, so maybe they're as good as they get? I'm maybe just used to the better brakes in the other cars I drive?
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post #4 of 42 (permalink) Old 06-14-2018, 03:43 PM
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You'd think I could see it was a wagon from the photo,but no. Drums tend to be less effective as they wear because they have to travel greater,and greater to reach the drum. Auto-adjusters leave a lot to be desired. So,plan on adjusting them yourself at least every year. I found that installing a "residual pressure valve" in my late model pick up helped a lot. It keeps the shoes from returning all the way back by keeping 10# pressure in the rear lines...

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post #5 of 42 (permalink) Old 06-14-2018, 03:50 PM Thread Starter
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Well, hydro boost and yank ABS definitely got moved up the list yesterday.

The pucker factor was very HIGH, and scared the sh*t outta my poor 7yr old daughter!
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post #6 of 42 (permalink) Old 06-14-2018, 03:51 PM
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a disc drum system is about 97/3 proportioning. If the rear drums are not in perfect working condition and adjusted correctly they likely will not do much in comparison to what the front discs are doing

On SS model with 4 wheel disc the rears are mostly cosmetic in function as GM did not have a 70/30 proportioning valve. Many of us did the "brake bolt mod" to remedy this. Does not apply to a disc/drum car though

Good you could avoid the bat**** driver....hopefully you did not flat spot the front tires but that is better than sheet metal and paint repair

ABS, if working, is more valuable in rain & ice conditions vs dry pavement

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post #7 of 42 (permalink) Old 06-14-2018, 04:06 PM Thread Starter
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I've got a vibration now so front tires are probably not happy anymore?
But, they were in need of replacement soonish anyway due to PO not aligning it properly when it was riding on the lowering springs.

It would've been a nasty collision! I had nowhere to go.
Last time this happened to me some moron nailed me without warning.
~$5k in damage to a brand new 2002 Ford Ranger, less than 1000 miles on it.
Woman cut across 3 lanes merging... the same freeway no less.

Just glad to avoid it, and nobody got hurt!
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post #8 of 42 (permalink) Old 06-14-2018, 05:00 PM
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I know you're aware that all of us are happy that you & yours are safe. After reading your near miss makes me wonder if there is a "Hit" out on B Body wagons. Look @ Fred's situation. Maybe the Crush em crowd has found another way to stop "GW?????" Again I'm happy both of you are unharmed.

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post #9 of 42 (permalink) Old 06-15-2018, 07:54 AM
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Bwag - With the setup you have now and believe this was already mentioned, manually adjust those Rear shoes so that there is just a slight drag on the drum. This may help with braking but really the drums are not the best and most if not all braking is being done at the front.

Now...what could you do to improve what you have and keep it within a budget? The pricier option would be do what you can to improve the fronts. Better Calipers/Rotors and Pads. Navy Lifer offers a nice upgrade that will improve the fronts quite a bit but still no help from the rear brakes which means the front is going to Nose Dive on hard braking.

My suggestion if you could and honestly think the improvement would be HUGE and cost less money, Swap the rear out with a Disk Rear from a donor car and do the Prop Valve mod. This would really improve overall braking but may be more than what you want to do. But if you can find a good rear and do all the work yourself, you could probably do it for less than $500. Then if you still want to improve the fronts, you can do that as well.

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post #10 of 42 (permalink) Old 06-15-2018, 09:20 AM
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Quote:
Originally Posted by 4DoorSS View Post
Swap the rear out with a Disk Rear from a donor car and do the Prop Valve mod. This would really improve overall braking but may be more than what you want to do. But if you can find a good rear and do all the work yourself, you could probably do it for less than $500. l.
IIRC the B-Body wagon has a wider rear end than sedan. IDK if wagons did come as rear disc as a option

I believe the SS rear end is 1" wider than the Caprice but not as wide as a wagon

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