Rear caliper junk

InCommando · **Posted:** Sun Mar 02, 2008 3:36 am

I had a problem with the L/R caliper hanging up. Took it apart & cleaned it up as these are said to have a sticking issue involving the caliper sliding on the mount. Put them back together as the pads & rotors looked OK & the caliper collapsed fine. 2 weeks later the L/R locks up HARD. The caliper is junk. Grrrrr.... Well, it did make it almost 47,000 miles... :evil:

The crappy SR/A's outlasted the caliper!

k99jk99j · **Posted:** Sun Mar 02, 2008 9:04 am

so was it the piston that locked up or the slides?

KJ04 · **Posted:** Sun Mar 02, 2008 10:46 am

My rears got replaced at 15,000 mi. under warranty. The service manager also stated at that time there was a national back order on them. So, the dealerships must have been replacing a lot of them.

jeepkj02 · **Posted:** Sun Mar 02, 2008 11:06 am

I'm glad I have drum brakes...

BeepBeepJeepJeep · **Posted:** Sun Mar 02, 2008 11:31 am

jeepkj02 wrote:

I'm glad I have drum brakes...

Why?

jeepkj02 · **Posted:** Sun Mar 02, 2008 12:02 pm

BeepBeepJeepJeep wrote:

jeepkj02 wrote:

I'm glad I have drum brakes...

Why?

Because of the crappy brake calipers KJ's have.

corwyyn · **Posted:** Sun Mar 02, 2008 12:48 pm

Not all the calipers are bad - I have 83k on my '03 and have yet to replace the rears (but I check them every oil change). I've never noticed any problems with the brakes on either end, other than the abortive attempt to use semi-metallic instead of ceramic pads. I'll never do that again...

BeepBeepJeepJeep · **Posted:** Sun Mar 02, 2008 12:52 pm

jeepkj02 wrote:

BeepBeepJeepJeep wrote:

jeepkj02 wrote:

I'm glad I have drum brakes...

Why?

Because of the crappy brake calipers KJ's have.

I just recently had to replace my right rear caliper. The Jeep has 118k on its clock... The caliper cost me $40 and took 10 minutes to install... I'd take that any day over the many disadvantages drum brakes has.

tommudd · **Posted:** Sun Mar 02, 2008 1:49 pm

yep not all rear calipers are bad, 97000 plus, and still the original calipers/ disc brake pads etc all around, and still in pretty good shape, they will go 100,000 miles easy.
Its like everything else made by man there will be a few that have problems

Jeepjeepster · **Posted:** Sun Mar 02, 2008 2:44 pm

I had to replace a right rear caliper this past summer. Had around 25k on it at the time.

Wasnt really a big deal though. $60 and 30min is all it took to change it out.

Ended up getting the new caliper at Napa.

And its the piston that seizes, not the slide pins.

InCommando · **Posted:** Sun Mar 02, 2008 10:43 pm

k99jk99j wrote:

so was it the piston that locked up or the slides?

My pistons froze. I originally thought it was the slide. I took it apart & cleaned/lubed everything & put it back together. That worked fine for a couple of weeks & then the piston locked up.

The pisser was that I had to have the jeep & the only place that ws both open and had the caliper was Advance. I'd like to have gone with a different company, to be honest. Oh, well. Like they said: at least it is an easy job.

Maximum Carnage · **Posted:** Mon Mar 03, 2008 11:23 am

BeepBeepJeepJeep wrote:

jeepkj02 wrote:

I'm glad I have drum brakes...

Why?

To me it seems that drums brakes last a lot longer than caliper brakes.

dgeist · **Posted:** Mon Mar 03, 2008 1:01 pm

Maximum Carnage wrote:

BeepBeepJeepJeep wrote:

jeepkj02 wrote:

I'm glad I have drum brakes...

Why?

To me it seems that drums brakes last a lot longer than caliper brakes.

Typically, they do, but they're a PITA to replace when they do go bad, are much harder to evacuate debris/water from (and hence often subject to early corrosion, etc on a trail rig), don't modulate as well for tricky braking manuvers, and are WAAAY harder to inspect for wear.

I'd change my rear calipers to disc units in a second on my full-size van if the conversion wasn't expensive and required changing out the master cylinder.

tjkj2002 · **Posted:** Mon Mar 03, 2008 1:11 pm

dgeist wrote:

Maximum Carnage wrote:

BeepBeepJeepJeep wrote:

jeepkj02 wrote:

I'm glad I have drum brakes...

Why?

To me it seems that drums brakes last a lot longer than caliper brakes.

Typically, they do, but they're a PITA to replace when they do go bad, are much harder to evacuate debris/water from (and hence often subject to early corrosion, etc on a trail rig), don't modulate as well for tricky braking manuvers, and are WAAAY harder to inspect for wear.

I'd change my rear calipers to disc units in a second on my full-size van if the conversion wasn't expensive and required changing out the master cylinder.

But we that have the rear drums have a way better parking brake which is key for me at least when rock crawling,don't want my KJ rolling down a steep mountain because the parking brake failed :shock:

.

But rear discs stop you much better.

dgeist · **Posted:** Mon Mar 03, 2008 1:22 pm

tjkj2002 wrote:

But we that have the rear drums have a way better parking brake which is key for me at least when rock crawling,don't want my KJ rolling down a steep mountain because the parking brake failed :shock:

.

But rear discs stop you much better.

No argument there.. probably a big reason many full-size work vehicles still have them. Braking == pretty important. Staying put with e-brake on == VERY important

BeepBeepJeepJeep · **Posted:** Mon Mar 03, 2008 1:35 pm

Maximum Carnage wrote:

BeepBeepJeepJeep wrote:

jeepkj02 wrote:

I'm glad I have drum brakes...

Why?

To me it seems that drums brakes last a lot longer than caliper brakes.

That's because they don't work as hard to stop you

dgeist wrote:

tjkj2002 wrote:

But we that have the rear drums have a way better parking brake which is key for me at least when rock crawling,don't want my KJ rolling down a steep mountain because the parking brake failed :shock:

.

But rear discs stop you much better.

No argument there.. probably a big reason many full-size work vehicles still have them. Braking == pretty important. Staying put with e-brake on == VERY important

I myself have had several issues with my parking brake off-road, and thus I will never walk away from my truck running and out of gear ever again on any kind of hill. Only reason I leave it on when I'm not in it is because it's cold out and my girlfriend needs the heat (she's tiny)

InCommando · **Posted:** Mon Mar 03, 2008 5:47 pm

These parking brakes seem to work best when applied like a ratchet, pulling up slowly a click at a time. I have not had a problem with the Jeep slipping backwards.

Rear caliper junk

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