Going to replace Rear calipers on my 1999 Blazer LT 4WD. Can someone please help me with the torque specs for this repair? I am most concerned with the banjo bolt, don't want to over tighten that one. I know the specs on the wheels already. thank you in advance for your help with this.

 

I usually just go hand tight plus about a 1/4 turn but I've got a pretty good feel with a wrench. You have to be careful and not to over torque them because they are hollow and will break very easily if too tight. I always air on the side of not tight enough then if they leak it's way easier to snug them up a bit then it is to dig out a broken bolt!!

 

These are for my 03, but I'm guessing it's the same for your 99

Fastener Tightening Specifications
<- Back Forward -> Document ID# 774919
2003 Chevrolet Blazer - 4WD Print
Application
Specification
Metric English
ABS Sensor Wire 17 N·m 13 lb ft
Bleeder Valve (Front Wheel) 12 N·m 110 lb in
Bleeder Valve (Rear Wheel) 12 N·m 110 lb in
Brake Hose Fitting Bolt (Rear Wheel) 54 N·m 40 lb ft
Caliper Bracket to Knuckle Mounting Bolt (Dual Piston Front Caliper) 180 N·m 133 lb ft
Caliper Bracket to Mounting Plate Bolt (Rear Wheel) 70 N·m 52 lb ft
Caliper Guide Pin Mounting Bolt (Dual Piston Front Caliper) 115 N·m 85 lb ft
Caliper Mounting Bolt (2 Wheel Disc Brakes) 51 N·m 38 lb ft
Front Flex Hose Bolt (Front Wheel) 54 N·m 40 lb ft
Guide Pin Bolt (Rear Caliper) 31 N·m 23 lb ft
Mounting Brake Nut (Rear Wheel) 65 N·m 47 lb ft
Park Brake Cable Adjusting Nut 3.5 N·m 31 lb in
Rear Brake Backing Plate Mounting Bolts 65 N·m 48 lb ft
<- Back Forward -> Document ID# 774919
2003 Chevrolet Blazer - 4WD

 

thank you porkfriedrice, appreciate the torque specs.

 

one more question. received both remanufactured brake calipers. they are both identical. they came in boxes with different part numbers. Are they reversible? Looks like only the bleeder valve will be affected. one will face forward one will face aft. Am I missing something else? Don't want to start this if I have wrong parts. Thank you in advance for your help.

 

They should both point to the rear and should be mirror images. Sounds like you received two of the same side;(.

 

Got the correct caliper for the driver side, glad I did.
Repair went smooth, working perfectly now.
Thanks for all the advice.


Signed up for ALLDATAdiy, so shouldn't have to ask for any more torque specs...