Front caliper bolts - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jim_PA · 03-31-2006, 01:08 AM

Are they supposed to be really hard to turn in???

It goes in about 1/2 turn easy, then it gets really tight. What's going on here?

Smallz72project · 03-31-2006, 01:42 AM

Try taking the caliper off and then threading it in, if it still does it, then I would say that the threads are messed up and need to be straightened out. Also clean up the bolt threads on a wire wheel or brush and use anti-seize on them. If the bolts do thread in, then your geometry of entry with the caliper in place is off. But to answer your original ?, no they shouldnt get tight like that only after half a turn. hope this helped.

Keep truckin,
Todd

Jim_PA · 03-31-2006, 07:45 AM

Yeah, I was trying to put the bolts in (which are new) into the spinde without the caliper on. I was thinking I got the wrong bolts, but I guess not! Definitely helps, but man.. this sucks!

Thanks

Joe67 · 03-31-2006, 08:19 AM

Quote:

Originally Posted by Smallz72project

Try taking the caliper off and then threading it in, if it still does it, then I would say that the threads are messed up and need to be straightened out. Also clean up the bolt threads on a wire wheel or brush and use anti-seize on them. If the bolts do thread in, then your geometry of entry with the caliper in place is off. But to answer your original ?, no they shouldnt get tight like that only after half a turn. hope this helped.

Keep truckin,
Todd

Good advice right there

Jim_PA · 03-31-2006, 08:35 AM

Quote:

Originally Posted by 67c10step

Good advice right there

I bought them from you... do you remember having problems with them?

Joe67 · 03-31-2006, 09:15 AM

Quote:

Originally Posted by Jim_PA

I bought them from you... do you remember having problems with them?

You did? Guess I don't remember that

I did have an extra set of bolts, they threaded into my calipers when I was doing some test fitting. I ended up using a new set I had instead.

Jim_PA · 03-31-2006, 11:03 AM

So I guess it would be a gamble to just ram them in, and hope they fix themselves... I've seen stuff break this way - Anyone know what size tap I have to go get?

Jim_PA · 04-01-2006, 09:55 PM

Well, FYI, they are 7/16 - 20 if anyone else needs the info... cleaned right up and the bolts go in fine. Now I can't find the rattle clip for the other caliper

......

woodridge · 04-01-2006, 10:31 PM

Did GM go to metric threads on the later models? Might just be the wrong bolts.

Jayss109 · 04-01-2006, 10:36 PM

I got 1 (only) in a box of new calipers few months back that WAS metric. Go get a new one at the local auto parts store and try that

J
________
Fellis

03-31-2006, 01:08 AM	#1
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Front caliper bolts Are they supposed to be really hard to turn in??? It goes in about 1/2 turn easy, then it gets really tight. What's going on here?

03-31-2006, 01:42 AM	#2
Smallz72project Registered User Join Date: May 2005 Location: Missoula, MT Posts: 273	Re: Front caliper bolts Try taking the caliper off and then threading it in, if it still does it, then I would say that the threads are messed up and need to be straightened out. Also clean up the bolt threads on a wire wheel or brush and use anti-seize on them. If the bolts do thread in, then your geometry of entry with the caliper in place is off. But to answer your original ?, no they shouldnt get tight like that only after half a turn. hope this helped. Keep truckin, Todd

03-31-2006, 07:45 AM	#3
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: Front caliper bolts Yeah, I was trying to put the bolts in (which are new) into the spinde without the caliper on. I was thinking I got the wrong bolts, but I guess not! Definitely helps, but man.. this sucks! Thanks

03-31-2006, 11:03 AM	#7
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: Front caliper bolts So I guess it would be a gamble to just ram them in, and hope they fix themselves... I've seen stuff break this way - Anyone know what size tap I have to go get?

04-01-2006, 09:55 PM	#8
Jim_PA Registered User Join Date: May 2005 Location: PA Posts: 2,696	Re: Front caliper bolts Well, FYI, they are 7/16 - 20 if anyone else needs the info... cleaned right up and the bolts go in fine. Now I can't find the rattle clip for the other caliper ......

04-01-2006, 10:31 PM	#9
woodridge Senior Member Join Date: Feb 2005 Location: Maynardville, Tn Posts: 3,030	Re: Front caliper bolts Did GM go to metric threads on the later models? Might just be the wrong bolts. __________________ SEMA Network- Protect our Hobby! 71 C30 in pieces, starting to come together. Click here for A Place For Tennessee Truck Enthusiest To Meet

04-01-2006, 10:36 PM	#10
Jayss109 Active Member Join Date: May 2005 Location: San Jose, CA Posts: 235	Re: Front caliper bolts I got 1 (only) in a box of new calipers few months back that WAS metric. Go get a new one at the local auto parts store and try that J ________ Fellis Last edited by Jayss109; 04-27-2011 at 11:38 PM.



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