WARNING!! Check/Loc-tite your Brake Caliper bolts!!

[mx5red]

So, I just had my second brake caliper adapter bolt remove itself!

First time was in April on Passenger Rear Lower bolt, which almost stranded me on the highway by jamming the caliper into the wheel and crumpling the parking brake/brake shield. Write up about those shenanigans here and here.

I checked/tightened other bolts at that time, and haven’t thought about it since. Yesterday, heard a grinding noise in a parking lot and got out to investigate, only to see a missing Top bolt on my Driver side now.

As I posted before, there is a TSB out for this to replace with 06513551AA M12x1.5x33 bolt, though googling says it is a 30mm bolt just like the originals I have. I only have 33 mm of depth so a 35 mm bolt will not work without careful use of washers.

I did not before but I replaced the bolts with heavy coatings of blue loc-tite on them. Suggest everyone do this!!

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[Gatorized]

What’s your build date?

 

[Advntrbound]

I need to figure out how to adjust the tension my parking brakes. Pads are good, but it barely holds when in the driveway.

 

[ErylFlynn]

Funny mentioning this, been replacing the brakes on my 08 JK for a while and never used loctite. Replaced them on my wife's Hyundai Tuscon and low and behold a bolt backed itself out. Bought some replacements from the auto parts store and they come with that red loctite already on them. So from now on all caliper bolts get loctite.

Ironically enough, on a side note. Later found another issue where a suspension bolt lost the nut and almost came out. Back drivers tire had some feathering which got me looking into it. Never touched that and we are the only owners, so other than just loosening on it's own, no idea what happened.

 

[Vtur]

Probably under torqued from the factory. Had mine out twice for regearing, didn't used any thread lockers and no issues.

 

[MassMopar]

Are these one-time-use bolts like the ones on the Cherokees? FSM says replace them with new ones and properly torque them when you do a brake job, youtube experts all re-use them...

 

[mx5red]

I need to figure out how to adjust the tension my parking brakes. Pads are good, but it barely holds when in the driveway.

Courtesy of @Hootbro
https://www.jeepgladiatorforum.com/...-brake-adjustment-question.74261/post-1211616

 

[mx5red]

What’s your build date?

12/19

 

[MT1]

I need to figure out how to adjust the tension my parking brakes. Pads are good, but it barely holds when in the driveway.

Does your park brake handle create a clang when being released?

https://www.jeepgladiatorforum.com/forum/threads/parking-break-adjustment.66449/

 

[Dryfly24]

Happened to me right after buying my 2020 Rubi. I was off road in the middle of nowhere. Never happened again after I tightened them down. I now carry spares just in case anyway.

 

[Advntrbound]

Mine does not.

 

[Geoarch]

So, I just had my second brake caliper adapter bolt remove itself!

First time was in April on Passenger Rear Lower bolt, which almost stranded me on the highway by jamming the caliper into the wheel and crumpling the parking brake/brake shield. Write up about those shenanigans here and here.

I checked/tightened other bolts at that time, and haven’t thought about it since. Yesterday, heard a grinding noise in a parking lot and got out to investigate, only to see a missing Top bolt on my Driver side now.

As I posted before, there is a TSB out for this to replace with 06513551AA M12x1.5x33 bolt, though googling says it is a 30mm bolt just like the originals I have. I only have 33 mm of depth so a 35 mm bolt will not work without careful use of washers.

I did not before but I replaced the bolts with heavy coatings of blue loc-tite on them. Suggest everyone do this!!

Does that mean that after the TSB (2021 Gladiators and earlier), that they fixed the issue? Seems unlikely.

 

[PaulW]

Happened to me lost one bolt and the other one sheared off. Had to remove the caliper and drive 50 miles (4lo locked in 1st gear). New bolts and new pads and a bunch on dollars. Went back together with Loctite.

 

[mx5red]

Does that mean that after the TSB (2021 Gladiators and earlier), that they fixed the issue? Seems unlikely.

Sounds like the same bolts
Even if they’re tighter now, I wouldn’t trust them without loc-tite.
Why do the body bolts need gobs of red loc-tite from the factory, but brake calipers don’t????

 

[Caper84]

Just had this happen on my '2023 Rubicon.. lost the top bolt on the driver's side. Caliper rubbed the inside of the rim...Nice silver machining job on the black rim... Waiting for new bolts to be delivered and going to Lock-tite the shit out of them.

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