which rotors do i have? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

dhughins · 09-26-2007, 06:12 PM

is there a lazy way to find out which rotors i have? i want to order a drop kit and it will be this weekend before i could take the wheel off.

Rc 415 · 09-26-2007, 06:47 PM

I wouldn't risk it, just pop the wheel off and take a quick measurement. I tried to measure with the wheel still on and ended up ordering the wrong spindles!

bigblock73 · 09-26-2007, 07:52 PM

If your truck is pre 80, then more than likely you have 1.25" rotors. I would still measure to be safe though.

dhughins · 09-26-2007, 07:56 PM

i have a 79 swb inline 6 250 ci. front disc rear drums. i'm looking at a western chassis kit from jcwhitney for $ 250.00. it has 3 inch coils in front and 5 inch flip in back. reckon i'll have to wait till the weekend and take off the wheel.

bigblock73 · 09-26-2007, 10:29 PM

Rotor size should not matter when using 3" coils.

impala_631 · 09-27-2007, 08:34 AM

Quote:

Originally Posted by Rc 415

I wouldn't risk it, just pop the wheel off and take a quick measurement. I tried to measure with the wheel still on and ended up ordering the wrong spindles!

true, i did that with my 81 and ordered the wrong size, i ended up just putting the bigger rotors, bearings and calipers on it just to make it work, it was all good cause the calipers and rotors were in really bad shape

knightlife · 09-27-2007, 10:54 AM

crank the wheel all the way to one side (Id say right)... then take your tape measure and measure the damn thing from the back...thats how I did mine...worked fine breh..

Duro5341 · 09-28-2007, 05:21 PM

It's either 1", or 1.25"....just measure the damn thing, and be done with it

Duro

Mr79C10 · 09-28-2007, 05:40 PM

1979 InLine 6 (250) with 1.25 rotors
But I used LCA and springs.

dhughins · 09-28-2007, 06:44 PM

i think bigblok73 had the right answer. i have looked at so many kits that i forgot it didnt matter with dropped springs.

09-26-2007, 06:12 PM	#1
dhughins Registered User Join Date: Aug 2007 Location: ozark, al Posts: 583	which rotors do i have? is there a lazy way to find out which rotors i have? i want to order a drop kit and it will be this weekend before i could take the wheel off.

09-26-2007, 06:47 PM	#2
Rc 415 Flat Black, & Chrome! Join Date: Jan 2007 Location: San Francisco Posts: 852	Re: which rotors do i have? I wouldn't risk it, just pop the wheel off and take a quick measurement. I tried to measure with the wheel still on and ended up ordering the wrong spindles! __________________ 1983 Chevy C10 Stepside Sold http://s69.photobucket.com/albums/i76/rc_415/

09-26-2007, 07:52 PM	#3
bigblock73 yeller Join Date: Oct 2001 Location: Twin Cities Posts: 13,826	Re: which rotors do i have? If your truck is pre 80, then more than likely you have 1.25" rotors. I would still measure to be safe though. __________________ Jeff 73-87.com 73-87.com Facebook page 73-87 cab corner 6x9 speaker brackets for sale 67-72 cab corner speaker brackets for sale 47-54 cab corner speaker brackets for sale

09-26-2007, 07:56 PM	#4
dhughins Registered User Join Date: Aug 2007 Location: ozark, al Posts: 583	Re: which rotors do i have? i have a 79 swb inline 6 250 ci. front disc rear drums. i'm looking at a western chassis kit from jcwhitney for $ 250.00. it has 3 inch coils in front and 5 inch flip in back. reckon i'll have to wait till the weekend and take off the wheel. Last edited by dhughins; 09-26-2007 at 07:58 PM.

09-26-2007, 10:29 PM	#5
bigblock73 yeller Join Date: Oct 2001 Location: Twin Cities Posts: 13,826	Re: which rotors do i have? Rotor size should not matter when using 3" coils. __________________ Jeff 73-87.com 73-87.com Facebook page 73-87 cab corner 6x9 speaker brackets for sale 67-72 cab corner speaker brackets for sale 47-54 cab corner speaker brackets for sale

09-27-2007, 10:54 AM	#7
knightlife Dark Heart Motorsports Join Date: Apr 2007 Location: 29404 DKFX Posts: 683	Re: which rotors do i have? crank the wheel all the way to one side (Id say right)... then take your tape measure and measure the damn thing from the back...thats how I did mine...worked fine breh.. __________________ How Deep Can YOU Bleed..? 1985 Chevy Blazer K5- 6.2 N/A, 400 turbo trans CUCV, 12v converted... a new chapter 2005 GMC Sierra Crew Cab 6.0 powwwaa!!! custom jumpseat install w/ captain seats, Hypertech tuner, MSD Blaster Coils, CB and twin antenna's, all electric interior, touch screen in dash. custom center console, with jump seat replacing original console. 1500 HD!

09-28-2007, 05:21 PM	#8
Duro5341 Registered User Join Date: Dec 2006 Location: Earth Posts: 239	Re: which rotors do i have? It's either 1", or 1.25"....just measure the damn thing, and be done with it Duro __________________ -1986 K10 LWB, 350 HD,TH400 3.08, 30 spline 10 bolt, with an Auburn Posi, 31" tires All original, second owner truck -1979 Monte Carlo, 350, 200r4, 3.73 posi -1987 GT T-top Mustang - slow moving project

09-28-2007, 05:40 PM	#9
Mr79C10 It Is What It Is,,,, Join Date: Aug 2006 Location: The Gun Shine StateFlorida* Posts: 1,765	Re: which rotors do i have? 1979 InLine 6 (250) with 1.25 rotors But I used LCA and springs. __________________ 79 C10 Short Box ST8 6 bang'r Lowered w/ 3" Control arms, 2" Lower Coils and 4" shackles and hangers W/ FLIP KIT __--__* 79 C-10 project* .........................__ ..............._____ l __\___ ..............\|_(O)_ \|___(O) ] FAQ INDEX Thread The Kulture My Rat Den

09-28-2007, 06:44 PM	#10
dhughins Registered User Join Date: Aug 2007 Location: ozark, al Posts: 583	Re: which rotors do i have? i think bigblok73 had the right answer. i have looked at so many kits that i forgot it didnt matter with dropped springs.



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