Rotor Width. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

r0lf- · 03-13-2003, 12:20 AM

I have a 80' Barebones C10 with a I6 and 3 on the tree. The only real heavy duty option I have is the radiator. I looked on the card in the glovebox that tells all the options and there is nothing about the heavy duty rotors in there.

I measured the rotors and they seem to be a bit more than 1".

The reason for this is because im ordering my drop spindles ASAP, im guessing I still have 1" rotors since its a barebones C10, not some HD C30 or 20.

ElGracho · 03-13-2003, 02:10 AM

The code you are looking for starts with a j. It would be like JB1 or JB3. I know JB5 is heavy duty brakes. What code do you have similar to those.

Without knowing the code, I would guess you have the 11x1" rotors.

**Captkaos** · 03-13-2003, 12:41 PM

If you can't find the codes, how many leafs you got in the back?
BTW, there is a 1/4" difference between the 2, so it shouldn't be a "little" over 1".

Slonaker · 03-13-2003, 01:33 PM

Chris:

How is the number of rear leafs (leaves?) related? I have the heavy duty rear springs according to the sticker in the glove compartment (4+overload) but not the heavy duty front brakes.

Slonaker

**Captkaos** · 03-13-2003, 01:43 PM

Heavy duty springs should have 7 leafs + overload, and they were always paired with HD brakes

Slonaker · 03-13-2003, 03:25 PM

Now I am really confused. I have 4 leafs plus the overload, and I thought my options sticker showed heavy duty rear suspension. I assumed I did have the heavy duty suspension because the two trucks that Woodman from Chevytalk has ('84 and '87 C10s) both have 3+1, and they both sit a little lower than mine.

I also don't have the heavy duty front brakes. I have the little rotors.

How many leafs am I supposed to have?

Slonaker
More confused than usual

03-13-2003, 12:20 AM	#1
r0lf- Hotwheels? Join Date: Dec 2002 Location: Pleasant Hill, CA Posts: 1,145	Rotor Width. I have a 80' Barebones C10 with a I6 and 3 on the tree. The only real heavy duty option I have is the radiator. I looked on the card in the glovebox that tells all the options and there is nothing about the heavy duty rotors in there. I measured the rotors and they seem to be a bit more than 1". The reason for this is because im ordering my drop spindles ASAP, im guessing I still have 1" rotors since its a barebones C10, not some HD C30 or 20.

03-13-2003, 02:10 AM	#2
ElGracho Gentleman Jim Driver Join Date: Nov 2002 Location: Poulsbo, WA Posts: 1,553	The code you are looking for starts with a j. It would be like JB1 or JB3. I know JB5 is heavy duty brakes. What code do you have similar to those. Without knowing the code, I would guess you have the 11x1" rotors. __________________ Joe '75 GMC Gentleman Jim '84 Chev C10 Short Wide - Super duper plain (manual steering, manual brakes, no dome light, no cig lighter) '85 Chev C10 Short Wide - Super plain Vortec 4.8 4L60E trans also: '81 K30, '83 C30 Crew Dually, '84 M1028 CUCV, '85 M1009 CUCV, another '85 C10 SWB, '89 R3500 Flatbed

03-13-2003, 12:41 PM	#3
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	If you can't find the codes, how many leafs you got in the back? BTW, there is a 1/4" difference between the 2, so it shouldn't be a "little" over 1". __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

03-13-2003, 01:33 PM	#4
Slonaker Insert Witty Text Here Join Date: Oct 2002 Location: San Antonio, TX Posts: 3,415	Chris: How is the number of rear leafs (leaves?) related? I have the heavy duty rear springs according to the sticker in the glove compartment (4+overload) but not the heavy duty front brakes. Slonaker __________________ '86 Chevy C10 (Sold 04/19/13 ) Stock '01 Silverado

03-13-2003, 01:43 PM	#5
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Heavy duty springs should have 7 leafs + overload, and they were always paired with HD brakes __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

03-13-2003, 03:25 PM	#6
Slonaker Insert Witty Text Here Join Date: Oct 2002 Location: San Antonio, TX Posts: 3,415	Now I am really confused. I have 4 leafs plus the overload, and I thought my options sticker showed heavy duty rear suspension. I assumed I did have the heavy duty suspension because the two trucks that Woodman from Chevytalk has ('84 and '87 C10s) both have 3+1, and they both sit a little lower than mine. I also don't have the heavy duty front brakes. I have the little rotors. How many leafs am I supposed to have? Slonaker More confused than usual __________________ '86 Chevy C10 (Sold 04/19/13 ) Stock '01 Silverado



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