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03-13-2014, 08:59 PM
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#1 |
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Registered User
Join Date: Feb 2014
Location: cambridge, oh
Posts: 14
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disc brak conversion
what is the diffrence in 67-70 and 71-72 disc brake conversion for the front? why are 67-70 cheaper? can i use 67-70 on my 72?
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03-13-2014, 09:05 PM
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#2 |
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Moderator
 
Join Date: May 2007
Location: Southern Cal
Posts: 20,020
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Re: disc brak conversion
If you have a 72 it already has disk brakes
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1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul |
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03-13-2014, 09:21 PM
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#3 |
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Registered User
Join Date: Feb 2014
Location: cambridge, oh
Posts: 14
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Re: disc brak conversion
I have a 72 and it has drum brakes.
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03-13-2014, 09:27 PM
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#4 |
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Registered User
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,279
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Re: disc brak conversion
Someone has done a reverse swap-a-roo on your truck. They must have wanted disc brakes on what that had and put the drum on what they were gonna sell. The trucks made for the model year 71- and 72 all had disc brakes, there is some talk of some 70 models but that area is fuzzy to me and I'll let others delve into that. If indeed you do have the drum brakes it may work well for you to do the 67-70 conversion and like you said it may be the cheapest route.
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03-13-2014, 09:28 PM
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#5 |
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Senior Member
 
Join Date: Sep 2007
Location: Albuquerque NM
Posts: 7,858
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Re: disc brak conversion
Can you post a couple pics if your truck?. I bet we could help alot beeter if we see what were diagnosing here
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1967custom |
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03-14-2014, 08:09 AM
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#6 |
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Registered User
Join Date: Feb 2014
Location: cambridge, oh
Posts: 14
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Re: disc brak conversion
Its in pieces all over the garage now. I'll try to post somel
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03-14-2014, 10:16 AM
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#7 |
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Hittin E-Z Street on Mud Tires
Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: disc brak conversion
You're likely looking at disc brake and DROP SPINDLE conversions (lowers truck 2-2.5" in front depending on which you get). As stated above, every 1971/72 truck that rolled off the assembly line had disc brakes. Your frame or cab may have been swapped at some point. There is a VIN on the DS of the frame, see if it matches your cab.
Anyway, yes, if you're looking at DROP disc brake spindles there is a difference. 67-70's used different lower ball joints and outer tie rod ends than 71/72 trucks, so that's why the drop spindles are different. HOWEVER, the lower control arms are the same, so you can install 67-70 ball joints in 71/72 control arms and vice versa.
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Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride  American Born, Country by the Grace of God  1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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03-14-2014, 07:27 PM
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#8 |
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Registered User
Join Date: Feb 2014
Location: cambridge, oh
Posts: 14
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Re: disc brak conversion
The vin number on the frame dosent math the vin on the truck. I would post pic, but i only have pics on my phone and not on my computer. So i dont know how to load them.
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03-14-2014, 08:16 PM
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#9 |
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Registered User
Join Date: Feb 2014
Location: cambridge, oh
Posts: 14
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Re: disc brak conversion
Acording to the frame number, the frame is a 69 and i got a 72 cab. Am i asking for trouble bulding this truck since the numbers dont match?
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03-14-2014, 10:21 PM
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#10 | |
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Who Changed This?
Join Date: Jan 2013
Location: Simi Valley, CA
Posts: 10,591
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Re: disc brak conversion
Quote:
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~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA |
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03-14-2014, 10:28 PM
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#11 |
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Hittin E-Z Street on Mud Tires
Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
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Re: disc brak conversion
I wouldn't worry about it at all. AS LONG AS you have a title that matches the cab VIN.
At least you know what parts you need to get now 
__________________
Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications! |
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03-14-2014, 11:28 PM
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#12 |
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Moderator
Join Date: May 2007
Location: Southern Cal
Posts: 20,020
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Re: disc brak conversion
If it is registered to you now I wouldn't worry about it. If you sell it to someone out of your state where a vin inspection is required it might be an issue if they look at the frame.
__________________
1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul |
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03-15-2014, 02:28 AM
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#13 |
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Senior Member
Join Date: Sep 2007
Location: Albuquerque NM
Posts: 7,858
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Re: disc brak conversion
Yup. Cab swaps and frame swaps are common now for these trucks. Now you know you got 69 steering and suspension and can go from there
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1967custom |
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