Broken shifter bolt
Thread Starter
Instructor
Joined: Aug 2007
Posts: 158
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From: DFW Big State Of Texas
Broken shifter bolt
I broke one of the 4 bolts that hold my shifter anyone know what size they are. I was going to take a bolt with me today and I forgot it. I wanted to get one on the way home. My car is a 2003.
TIA
TIA
Race Director
Joined: Jan 2006
Posts: 10,554
Likes: 33
From: Not on either liberal coast.
SAE 1/4-20x5/8"...that's measured beneath the head, threads only.
If you buy a hard store bolt, it will not have an integrated washer under the head, so you might consider a thin flat washer (not a lock washer).
If it were me, I'd replace all four bolts with grade 8, which is way overkill for the small amount of torque required. I used grade 8 with the B&M "Sport" shifter I recently installed. I've never broken a grade 8 bolt in any application. It's just my preference.
Grade 5 is silver color and grade 8 is a gold color. Grade 5 should be more than adequate in most non critical applications such as the shifter mechanism.
Use LOCTITE (blue) on the threads and torque to 8-10 ft lbs. If you don't have a torque wrench and/or can't borrow one, tighten snugly and allow the LOCTITE to cure before use.
I don't understand how so many people break off their bolts unless they're really standing on the wrench.
Read this thoroughly, it might help...
http://temp.corvetteforum.net/c5/pat...rInstall.shtml
If you buy a hard store bolt, it will not have an integrated washer under the head, so you might consider a thin flat washer (not a lock washer).
If it were me, I'd replace all four bolts with grade 8, which is way overkill for the small amount of torque required. I used grade 8 with the B&M "Sport" shifter I recently installed. I've never broken a grade 8 bolt in any application. It's just my preference.
Grade 5 is silver color and grade 8 is a gold color. Grade 5 should be more than adequate in most non critical applications such as the shifter mechanism.
Use LOCTITE (blue) on the threads and torque to 8-10 ft lbs. If you don't have a torque wrench and/or can't borrow one, tighten snugly and allow the LOCTITE to cure before use.
I don't understand how so many people break off their bolts unless they're really standing on the wrench.
Read this thoroughly, it might help...
http://temp.corvetteforum.net/c5/pat...rInstall.shtml
Last edited by hotwheels57; Dec 14, 2007 at 05:22 PM.
Thread Starter
Instructor
Joined: Aug 2007
Posts: 158
Likes: 0
From: DFW Big State Of Texas
I broke it when shifting hard.
I broke one of the rubber insulated ones that connect to the tube last time.
It is not from over torque I think one worked loose and it snapped. I noticed my shifter was a little sloppy and I found a broken bolt.
Im a little rough on things.
Thanks
I broke one of the rubber insulated ones that connect to the tube last time.
It is not from over torque I think one worked loose and it snapped. I noticed my shifter was a little sloppy and I found a broken bolt.
Im a little rough on things.
Thanks
