![]() |
![]() |
#1 |
Loading.....
Join Date: Jan 2000
Location: Austin, Texas, USA
Posts: 214
|
Rotor help needed
Hi Guys,
I recently picked up a '78 front xmember and disc brake setup. The PO had replaced all of the bushings and added 2" drop spindles. It was a good deal but the only issue is he stayed with the 1" rotors. Meaning he purchased drop spindles for the 1" rotors. BUT.....I want to keep my truck 6-lug To my knowledge all of the aftermarket rotors that are drilled to 6-lug are for the 1.25 brakes. What are my options for converting to 6-lug rotors with the 1" brakes? I do not want to purchase all of this over again. Ideas?
__________________
-M7 '69 SWB GMC 5.7 EFI ‘69 C/10 SWB patina survivor ‘71 GMC K20 '72 K5 1-ton gear 468BB ‘86 K30 GMC High Sierra C&C Single Cab '96 SWB Single Cab 5.7 ‘99 SWB Z71 Single Cab '00 SWB Single Cab 5.3 '01 K2500 Yukon Safari 6.0 ‘06 2500HD Single Cab C&C Duramax 4x4 '08 1500 crew '11 2500HD Single Cab Duramax 4x4 |
![]() |
![]() |
![]() |
#2 |
Loading.....
Join Date: Jan 2000
Location: Austin, Texas, USA
Posts: 214
|
Re: Rotor help needed
Anyone????
__________________
-M7 '69 SWB GMC 5.7 EFI ‘69 C/10 SWB patina survivor ‘71 GMC K20 '72 K5 1-ton gear 468BB ‘86 K30 GMC High Sierra C&C Single Cab '96 SWB Single Cab 5.7 ‘99 SWB Z71 Single Cab '00 SWB Single Cab 5.3 '01 K2500 Yukon Safari 6.0 ‘06 2500HD Single Cab C&C Duramax 4x4 '08 1500 crew '11 2500HD Single Cab Duramax 4x4 |
![]() |
![]() |
![]() |
#3 |
Registered User
Join Date: Feb 2009
Location: Wausau, WI
Posts: 975
|
Re: Rotor help needed
i'd call around and see if you can find someone that offers 1'' 6 lug rotors.
or go 5 lug on the rear.
__________________
Smoking Tires Since 1992 1969 c10 AKA SIN 1985 SSWB TRAZER (super short wheel base) |
![]() |
![]() |
![]() |
#4 |
Registered User
Join Date: Feb 2009
Location: Wausau, WI
Posts: 975
|
Re: Rotor help needed
i can seem to understand what you asking. are you talking about the thickness of the rotor. or the diameter of the hole?
__________________
Smoking Tires Since 1992 1969 c10 AKA SIN 1985 SSWB TRAZER (super short wheel base) |
![]() |
![]() |
![]() |
#5 |
Loading.....
Join Date: Jan 2000
Location: Austin, Texas, USA
Posts: 214
|
Re: Rotor help needed
To help explain please see the bold text below:
"DRUM TO DISC CONVERSIONS 67-70" created by LOLIFE99 http://67-72chevytrucks.com/vboard/s...68&postcount=4 "67-70 truck with 73-87 Crossmember Installed: 1) Your trucks 73-87 donor crossmember came from the factory with disc brakes. * Using the 73-87 crossmember allows for upgrading to 73-87 style rubber bushed a-arms. * Most replacement parts are more affordable than the "2-year" specific 71-72 model trucks. * Most auto parts stores keep these parts "in stock". 2) Drop spindles are readily available,... but there are two versions that must match the two rotor versions below: 3) Rotors: * There are two different widths of rotors available on the 73-87 model trucks. 3.1) HD or Heavy Duty rotors: (1-1/4" wide version) available from 73-87 * These will require matching HD bearings and calipers. 3.2) LD or Light Duty rotors: (1" wide version) available from 81-87. * These will require matching LD bearings and calipers. 4) Steering linkage contains 11/16" diameter tie rods. * Inner Tie rods are LH thread. * Outer Tie rods are RH thread. * Inner Tie Rods are 73-87 specific * Outer Tie Rods are 73-87 specific 5) All 73-87 oem steering linkage will work with your 73-87 spindles. 6) The 1/2 ton a-arms have rubber bushed cross shafts * (compared to the steel bushings of the 71-72 a-arms) 7) 73-87 crossmembers have the steel brake lines, connect the rubber brake hose, through a hole originally drilled in the 73-87 frame rail. * Using these crossmembers in the older trucks will require you to fabricate some or all of your steel brake lines. * (67-70 brake lines connect on the rear side of the crossmember) * (71-72 brake lines connect on the front side of the crossmember) * Steel reproduction brake line sets are specific to the 73-87 design with their proportioning valve mounted on a crossmember in front of the engine opposed to hanging below the master cylinder. 8) 73-87 rubber brake hoses are much longer than either the 63-70 drum brake hose or the 71-72 disc brake hose. 9) 6-lug aftermarket rotors are now readily available if you decide you want to keep your 6-lug style wheels. * To use the 6-lug rotors you must have the 73-87 HD spindles,... since all aftermarket 6-lug rotors are only available in the 1-1/4" wide version. * Be aware that the oem 15x6.5 steel 6-lug wheels will not clear your new disc brake conversion. * You will need to use a set of steel wheels found on the later 73-87 4x4 trucks. "
__________________
-M7 '69 SWB GMC 5.7 EFI ‘69 C/10 SWB patina survivor ‘71 GMC K20 '72 K5 1-ton gear 468BB ‘86 K30 GMC High Sierra C&C Single Cab '96 SWB Single Cab 5.7 ‘99 SWB Z71 Single Cab '00 SWB Single Cab 5.3 '01 K2500 Yukon Safari 6.0 ‘06 2500HD Single Cab C&C Duramax 4x4 '08 1500 crew '11 2500HD Single Cab Duramax 4x4 |
![]() |
![]() |
![]() |
#6 |
Loading.....
Join Date: Jan 2000
Location: Austin, Texas, USA
Posts: 214
|
Re: Rotor help needed
Well buckit. I'm just going to go 5-lug. Looking for another set of 9c1 wheels for now...
__________________
-M7 '69 SWB GMC 5.7 EFI ‘69 C/10 SWB patina survivor ‘71 GMC K20 '72 K5 1-ton gear 468BB ‘86 K30 GMC High Sierra C&C Single Cab '96 SWB Single Cab 5.7 ‘99 SWB Z71 Single Cab '00 SWB Single Cab 5.3 '01 K2500 Yukon Safari 6.0 ‘06 2500HD Single Cab C&C Duramax 4x4 '08 1500 crew '11 2500HD Single Cab Duramax 4x4 |
![]() |
![]() |
![]() |
Bookmarks |
|
|