Rear brake caliper bolt size?

[RedBeardedDevil]

Can anyone tell exactly what to ask for at the parts store/dealership/hardware store so that I can get replacement bolts for my rear calipers on my 95 Mystique? I got the passenger side off, but the driver side just will not come off. I am trying my last few options but will likely need new bolts because of stripping. I think they were put on with an impact wrench when that side was rebuilt. I would like to change them to another type of head if possible so I don't have to deal with those dang Torx bits again.

 

[RedBeardedDevil]

I managed to get replacement bolts at a hardware store. Still don't understand why they put hex head bolts on front calipers but torx on back. Crazy.

 

[ScottyDsntKnow]

Because it is Ford and they suck when it comes to hardware selection. I swear when I tore down my SHO and rebuilt my Cobra I had to use about ninety million different sizes of metric, standard, torx and star. I seriously wanted to drive to Detroit and beat the design teams to within an inch of their lives. I mean seriously how hard is it to decide to go with one or the other and just stick with it?

 

[RedBeardedDevil]

Testify!

 

[elraido]

I managed to get replacement bolts at a hardware store. Still don't understand why they put hex head bolts on front calipers but torx on back. Crazy.

I posted a rant like this a couple years ago. :laugh:

 

[DanMyers]

That's weird, mine are Torx all around. :shrug: Either way, Torx sucks.

 

[Linkman]

I managed to get replacement bolts at a hardware store. Still don't understand why they put hex head bolts on front calipers but torx on back. Crazy.

So, what size bolts did you get?

 

[ScottyDsntKnow]

I know its late but maybe this thread will help someone searching the forums in the future. The rear caliper bracket bolts are M10x1.5x25 and that size is available at any hardware store/chain store.

The slide pin bolt is M10x1.5x80 and is a torx head. Allen head would work too. I just had a completely FUBAR rear caliper episode. Had to bust out the acetylene torch to get the damn caliper bracket bolts out... I'm replacing everything that I can with hex.


Edit: Also, metric bolts are not rated grade 5, 8 etc... You want the ones that say 10.9 on the bolt head. Lowes/Home Cheapo only sell the 8.8 ones IIRC and while these might be strong enough, the bolts that came in the NPG kit I'm putting on are all 10.9 and I'm inclined to go with them. Really don't need cheap bolts shearing off in an emergency stop situation.

 

[Linkman]

The original bolts are all 10.9 as well, good call on getting the correct replacements.

And thanks for posting the bolt sizes!

 

[SVTJON87]

thanks for the rear caliper bolt size. i just want to verify that both bolts are correct.
both are M10x1.5x25 class 10.9 and full thread.

https://www.fastenal.com/web/products/detail.ex?sku=0128771&ucst=t
https://www.fastenal.com/web/products/detail.ex?sku=0153985&ucst=t

 

[ScottyDsntKnow]

Yeah that is correct, those are the bracket bolts. That picture is just a stock picture, the bolts you'll get are short and won't have a shank, it'll be all threaded.

For the slide pin bolt you want the M10x1.5x80, hopefully you didn't get that confused lol.

 

[SVTJON87]

Yeah that is correct, those are the bracket bolts. That picture is just a stock picture, the bolts you'll get are short and won't have a shank, it'll be all threaded.

For the slide pin bolt you want the M10x1.5x80, hopefully you didn't get that confused lol.

no i just need the bracket bolts. i have new internal hex slide bolts. i got lucky with the bracket bolts and slide bolts. they came out perfect with some heat. i stripped the bolt and broke my T50 torx bit installing one. so im just getting rid of all the torx crap. thank you for your help!