C2 (1967) rear brake caliper half and mounting bolt torque specs

[Timothy B.]

Can someone tell me the correct torque specs for the rear brake caliper bolts that join the halves and the caliper to mounting bracket bolts.

TIA, Tim

[Joe L.]

Re: C2 (1967) rear brake caliper half and mounting bolt torque specs

Can someone tell me the correct torque specs for the rear brake caliper bolts that join the halves and the caliper to mounting bracket bolts.

TIA, Tim

Tim-------


The rear caliper half bolts are torqued to 60 lb/ft. The caliper-to-bracket bolts, front and rear, are torqued to 70 lb/ft.

[Larry M.]

Re: C2 (1967) rear brake caliper half and mounting bolt torque specs

The bolt torque for joining the the caliper halves together is 130 ft-lbs.

Larry

[Joe L.]

Re: C2 (1967) rear brake caliper half and mounting bolt torque specs

The bolt torque for joining the the caliper halves together is 130 ft-lbs.

Larry

Larry------


That's for the FRONT calipers.Tim asked about the REAR calipers. The front bolts are 9/16". The rears are 7/16"

[Timothy B.]

Re: C2 (1967) rear brake caliper half and mounting bolt torque specs

Thanks Joe, I appreciate that info.

Larry,

That 130ft.lb. spec almost got me in big trouble on the rear caliper until my common sense kicked in. I am going out today and note that in my 1967 service manual.

[Gary R.]

Re: C2 (1967) rear brake caliper half and mounting bolt torque specs

Thanks Joe, I appreciate that info.

Larry,

That 130ft.lb. spec almost got me in big trouble on the rear caliper until my common sense kicked in. I am going out today and note that in my 1967 service manual.

Been there, didn't pay attention until I stretched the bolts!!!!! Made a note on the manual page but never forgot it.

[Larry M.]

Re: C2 (1967) rear brake caliper half and mounting bolt torque specs

Thanks Joe, I appreciate that info.

Larry,

That 130ft.lb. spec almost got me in big trouble on the rear caliper until my common sense kicked in. I am going out today and note that in my 1967 service manual.

Sorry guys. I tried to help and looked up this value for Tim in the 1967 Chevrolet Service Manual. Only one value was listed for Corvette for this application. No mention of FRONT or REAR.

I need to be more careful giving advice. Folks also need to make a note/correction in their service manuals if they have one.

Larry

[Joe L.]

Re: C2 (1967) rear brake caliper half and mounting bolt torque specs

All-------


Another interesting fact regarding caliper half clamp bolts: 1st design calipers used from 1965 through early 1967 used PLACE BOLTS for both front and rear calipers. Place bolts have an unusual head design with 6 deep radial grooves surrounding a recessed round center. Some folks mistakenly believe that this is intended to designate a grade 8 fastener. While these bolts are grade 8 material strength, the head feature is actually a locking mechanism unique to place bolts.

Curiously, for 2nd design calipers used from late 1967 through 1982, the place bolts were eliminated and replaced by ordinary, grade 8 hex bolts which were installed with no locking mechanism, at all.

The place bolts used for 65-E67 and the standard hex head bolts used for L67-82 were all phosphate finished. None were originally zinc plated.

By the way, place bolts were widely used on Ford applications. However, they were very rare on GM products. In fact, the aforementioned use on Corvettes is the ONLY Corvette application that comes to mind.