| |
Labor Day Putting down your wrenches or time for
MORE wrenching? 
Plenty of places to share. | | Click on image for the lowdown. 
====
| | | Forums66 Topics128,009 Posts1,055,297 Members48,419 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
| | THANKS!
For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | 
#68279 11/07/2006 3:43 AM | Joined: Jun 2000 Posts: 50 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2000 Posts: 50 | Friends - I am installing the 6-lug CPP disc brake conversion kit on my 51 AD. So far I'm OK with the quality of the product, but not the installation instructions, the how-to articles on their website, or the answers I got when I called them directly. My question is what are the proper torque values for the bolts in this kit... I'm hoping someone out there in Stove Bolt land has done this before or has general knowlege of disc brake installations and can guide me. Here is what I need and what I have done so far: Bottom Caliper Bracket bolts that secure the braket and the steering arm to the spindle are Grade 8 bolts, 1/2" I have torqued to 75 ft lbs, Grade 8 Top Caliper bracket bolts are 7/16" I torqued to 55 ft lbs. I haven't installed the caliper pin/bolts that secure the caliper to the caliper bracket yet, I found one website that had a torque value for these pins at 37 ft lbs. I also looked for torque values on the original brake backing plate bolts in the shop manual and couldn't find anything as a reference either. The original bolts use a castillated bolt with a cotter pin for safety, the kits is just a bolt, nut, and washer. Any concerns there? Any help would be appreciated. Bug
1951 Chevrolet 3100 AD Pickup
| | |
#68280 11/07/2006 4:15 AM | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | A good rule of thumb is tighten to ½ turn before it breaks.  But seriously folks, from a chart that came with my Bush Hog, grade 8 ½-13 bolts, 106 ft-lb. Grade 8 ½-20 bolts, 120 ft-lb. Grade 8 7/16-14 bolts, 70 ft-lb. Grade 8 7/16-20 bolts, 78 ft-lb. I used the CCP kit on my '54 GMC. Had to do a little modifying. Click on my website link then go to '54 GMC, then to "Front suspension". | | |
#68281 11/07/2006 3:52 PM | Joined: Jun 2000 Posts: 50 Wrench Fetcher | | Wrench Fetcher Joined: Jun 2000 Posts: 50 | Thanks Cletis - In fact I have referenced your site before and learned how to orient the bend in the caliper bracket from your description. As for torque values, since I posted I have done some digging in a couple of fastener cataloges and a how-to brake manual and concure my Grade 8/20 bolts need a few more foot lbs of torque, 120ish on the 1/2" bolts and 75ish on the 7/16" . The caliper pin torque specs I am finding indicate the 37 ft lbs is correct. Thanks for the help on this - Bug
1951 Chevrolet 3100 AD Pickup
| | |
|
|
| |
