The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 01-05-2004, 11:33 PM   #1
corn
Registered User
 
Join Date: Dec 2003
Location: here
Posts: 5,789
1" & 1 1/4" rotors

Was there anything special that designated which trucks got the 1" & which ones got the 1 1/4" rotors? Or did GM just use them as they pleased?...corn
corn is offline   Reply With Quote
Old 01-05-2004, 11:44 PM   #2
TIMSPEED
 
TIMSPEED's Avatar
 
Join Date: Jan 2003
Location: Modesto, CA
Posts: 1,321
I don't know the answer to this...but on my 75 C10, I thought it had 1" brake rotors, because nothing denoted it having the 1¼"..but come to find out, it DID have 1¼"! So check before you order anything.
__________________
I have a few cars...
See Them Here
TIMSPEED is offline   Reply With Quote
Old 01-06-2004, 02:16 AM   #3
Mike76251
Senior Member
 
Join Date: Mar 2003
Posts: 2,499
My truck has the "Heavy-Half" or "Camper-Special" package on it although in '84 GM didn't call it those names.
My truck also has the big brakes that were part of those packages.
Mike76251 is offline   Reply With Quote
Old 01-06-2004, 02:24 AM   #4
Slonaker
Insert Witty Text Here
 
Slonaker's Avatar
 
Join Date: Oct 2002
Location: San Antonio, TX
Posts: 3,415
I have the heavy duty rear suspension option, but the light duty brakes. It makes no sense...

Slonaker
__________________
'86 Chevy C10 (Sold 04/19/13 )
Stock '01 Silverado
Slonaker is offline   Reply With Quote
Old 01-06-2004, 02:29 AM   #5
Mike76251
Senior Member
 
Join Date: Mar 2003
Posts: 2,499
That's the bean counters at work Slonaker.
That doesn't make a bit of sense to me either.
Mike76251 is offline   Reply With Quote
Old 01-06-2004, 04:15 AM   #6
MylilBowTie
Right turn Clyde
 
MylilBowTie's Avatar
 
Join Date: Nov 2002
Location: Cincinnati, Ohio
Posts: 2,911
lol Ive got HD brakes and pretty sure "light duty" leaf springs
__________________
1974 C25 LWB: 454 4bbl Carb / TH400 / 3.73
1992 Camaro RS 305 TBI
MylilBowTie is offline   Reply With Quote
Old 01-06-2004, 10:40 AM   #7
Jonboy
Slots go on anything!
 
Join Date: May 2003
Location: Richardson, TX
Posts: 5,957
I have the heavy duty brakes and suspension on mine. That was one of the few options my truck had. It is a factory 454 1/2 ton truck, maybe that triggered the suspension and brakes?
__________________
1974 Jimmy- 5.3/4L80e/NP241
Jonboy is offline   Reply With Quote
Old 01-07-2004, 01:23 AM   #8
apstguy
LED King
 
apstguy's Avatar
 
Join Date: Jan 2003
Location: Sacramento, CA
Posts: 2,087
Check the codes in the glovebox. It will tell you if you have HD brakes or not.
__________________
Tyler

1985 C10 305 w/ Bowtie OD TH700R4 3.42 LSD 202,000 miles
2006 Ford Focus ZX3 5-speed Stick
2016 Chevy Spark EV
Gone: 2002.5 VW GTI 24v VR6
Gone: 2008 VW R32
apstguy is offline   Reply With Quote
Old 01-07-2004, 10:49 PM   #9
C&C Chevy
Registered User
 
C&C Chevy's Avatar
 
Join Date: Feb 2003
Location: Midwest City, OK
Posts: 1,001
The RPO for HD pwr brakes is J55.
__________________
Robert

Current:
1986 SWB Silverado 4.3 / TH400

Past:
1985 SWB Silverado 305 / TH350 - sold 1995
1987 1/2 ton Silverado - FI 350 / 700R4 sold 2007
C&C Chevy is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 08:52 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com