Register or Log In To remove these advertisements. |
|
|
|
Thread Tools | Display Modes |
|
08-18-2005, 12:02 PM | #1 |
Registered User
Join Date: Jul 2005
Location: arizona
Posts: 54
|
67 front disc conversion
I have the front spindles and disc brakes from a 71 GMC. I want to convert my 67 to disc brakes. Will the spindles and calipers bolt on or are there mods that will need to be done?
|
08-18-2005, 12:04 PM | #2 |
Registered User
Join Date: Mar 2005
Location: Melissa, TX
Posts: 799
|
I think you have to replace one or both of the ball joints. Someone that has done this will chime in hopefully.
__________________
68 short bed driver (71 clip on it now, swapping to 68 when weather cooperates) 67 short step project (will get SWB from the 68) 67 Camaro, #'s matching (my wife's) 03 Dodge Ram 2500 4x4 diesel 5 speed 4.10 rear |
08-18-2005, 12:29 PM | #3 |
Registered User
Join Date: May 2005
Location: PA
Posts: 2,696
|
I don't remember reading anything about ball joints when I did the research... You will need a new proportioning valve, and it's a good time to replace the master cylinder.
Here's what I've collected so far, and I'm hoping this is about all I'll need. I plan on making some kind of write up/taking pictures while doing this... 71-72 parts (so far $390.00): spindles (used) master cylinder (reman) calipers (reman) pads (new) bearings (new) proportioning valve (used) brake hoses (new stainless steel) oil seals (new) rotors (new) I'll probably end up bending new brake lines for it, but I haven't had the time to give the old ones a good inspection yet. |
08-18-2005, 12:44 PM | #4 |
Msgt USAF Ret
Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,718
|
67 to 71 disc brake swap
__________________
VetteVet metallic green 67 stepside 74 corvette convertible 1965 Harley sportster 1995 Harley wide glide Growing old is hell, but it beats the alternative. |
08-18-2005, 12:49 PM | #5 |
Hittin E-Z Street on Mud Tires
Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
|
I did the exact conversion your doing, 67 chevy with 71 GMC disks. I used the entire suspension (crossmemeber and all) and bolted it right into place. If you don't want to do that the link vettevet has tells what you need to do to "just add" the spindles. I tore the suspension completly apart and bought new EVERYTHING for it, painted it and put it all back together. I love them disks and power brakes, stops MUCH better 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! |
08-18-2005, 01:06 PM | #6 |
Registered User
Join Date: May 2005
Location: PA
Posts: 2,696
|
That's pretty hard to follow....
So, the ball joints have to be replaced too? |
08-18-2005, 01:33 PM | #7 |
Senior Member
Join Date: Feb 2004
Location: Williamsburg, Ohio
Posts: 1,798
|
All above is good input. If you want to retain the 67 suspension as I did,t hose stock bushings will never squeak if greased. Use the upper and lower balljoints that match the spindle. The outer tie rods are the small problem as you need to get the ones that fit the year of the spindle. The 71 's are 11/16" RH thread. Your 67 coupler is 5/8" LH thread. Choices are to buy an adapter coupler, rethread the 71 outers to 5/8" LH---as I do-- use the originally 67 ---a little different taper and not recommended ---or change out the whole saddle of suspension. You probably need lower balljoints anyway. The upper A-Arm bushing wear faster than the lowers. Check them out when you replace the balljoints and make sure all will take grease. It takes me about 30 mins a piece to change the outer tie rod threads. The disc are great especially with power brakes.
|
08-18-2005, 02:57 PM | #8 |
Registered User
Join Date: May 2005
Location: PA
Posts: 2,696
|
OUCH! Add another $268 to my list.... At least almost everything under there will be new.
|
08-18-2005, 03:35 PM | #9 | |
Hittin E-Z Street on Mud Tires
Join Date: Nov 2004
Location: Greenville, SC
Posts: 23,090
|
Quote:
One thing I'm not sure anyone mentioned, if you used 71-72 spindles with a 67-69 lower A arm you will not be able to turn your wheel the proper amount from "lock to lock." The metal bump stops for disk and drum spindles is different. Count how many times your steering wheel turns from lock to lock and try to replicate that by grinding some of the "tit" on the spindle off until you get the proper turning radius. (I ended up using my 67 lower A arms because I didn't realize the 71's I bought were bent on the passenger side, they were coated with mud.) Don't bang or grind on the bump stop on the A arm, only grind on the spindle.
__________________
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! |
|
08-18-2005, 03:46 PM | #10 |
Registered User
Join Date: May 2005
Location: PA
Posts: 2,696
|
I haven't even driven it yet, but it's been sitting for quite a while and the brakes don't work at all right now (pedal goes to the floor). I figured I would be better off in the long run ditching the drums for discs and not even bother trying to fix the drums.
Good info there about the grinding... didn't know that either |
08-18-2005, 03:52 PM | #11 |
Keepin an eye out
Join Date: Feb 2003
Location: So.Cal
Posts: 3,920
|
Also remember if yuor doing your own work to have a BFH(hammer). You will need to do some beating removing old parts. When you think theres no way its coming off, one more blow gets it
__________________
1970 Chevy C10 SWB 5.3 1996 Toyota Tacoma SR5 4x4 2007 Vespa GTS 250 Scooter ZIP 91351 |
08-20-2005, 07:02 AM | #12 |
Senior Member
Join Date: Apr 2005
Location: Joppa, Maryland
Posts: 4,408
|
Go here and get what you need in kit form. Just get the 71/72 2wd kit. I've bought from these people before without any problems.....
http://www.p-s-t.com/truck/tvfekstd.html
__________________
1997 GMC Sierra Ext 1965 Mustang |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|