The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-09-2019, 05:16 PM   #1
Rdwagoner
Registered User
 
Join Date: Nov 2018
Location: Loganville
Posts: 52
Front disk and drop question

1967 C10, I need some input please.
Iíd like to drop the front and back a few inches, any advise?
Currently 6 lug and drums all around. Iíd like to convert front to disk. Can I get parts I need from a junk yard without changing steering etc? Iím going to buy drop spindles as well. Probably will keep 6 lug unless I find a 5 lug front then Iíll have to drill out the rear shafts to 5 lug since Iím unable to remove shafts. Any advice on direct bolt on stuff year models etc? Carrier pin is locked in since bolt broke off in the pin and I cannot remove it. Last resort is swap entire rear axle if needed. Thanks for any input
Rdwagoner is offline   Reply With Quote
Old 02-09-2019, 07:04 PM   #2
Mike C
Registered User
 
Mike C's Avatar
 
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 6,962
Re: Front disk and drop question

Does your truck have a 12 bolt or a Dana 60?

I would do an Early Classics Enterprises (ECE) conversion disc kit. It uses the drum ball joints and tie rods. I would do the 2 1/2" drop spindle kit.

If you have the 12 bolt in the rear, I would definitely do the 5 lug. There are so many more options on wheels. You will need to buy conversion axle shafts and drums or find a donor axle from a newer truck.

Your choices can depend on your skill set. I HIGHLY recommend using the search button at the top of the page as this board is 20 years old now and there are TONS of solutions to this question.

Pics of your truck please!
__________________
44 Willys MB
52 M38A1
64 Corvette Coupe
68 Camaro 'vert LT1 & TH700
69 Z/28 355 12.6's @110
69 Chevy Short Step 4 1/2"/7" drop
72 Jimmy 4WD 4spd 4" & 35's
02 GMC 2500HD 4x4 Duramax
Mike C is offline   Reply With Quote
Old 02-09-2019, 07:34 PM   #3
Rdwagoner
Registered User
 
Join Date: Nov 2018
Location: Loganville
Posts: 52
Re: Front disk and drop question

Yes sir it is a 12 bolt rear. I have no way of getting g the shafts our as I cannot get the pin out of the carrier. Iím either stuck with my 6 lug rear or could have my current shafts drilled for 5 lug? I will definitely do the drop and disk kit you recommend . I did hear itís possible to use the front end out of a mid 70-80 model Chevy for the disk brakes etc. is that possible?posting pics below...
Rdwagoner is offline   Reply With Quote
Old 02-09-2019, 08:15 PM   #4
Rdwagoner
Registered User
 
Join Date: Nov 2018
Location: Loganville
Posts: 52
Re: Front disk and drop question

http://67-72chevytrucks.com/vboard/a...1&d=1549757645
Attached Images
 
Rdwagoner is offline   Reply With Quote
Old 02-09-2019, 08:16 PM   #5
Rdwagoner
Registered User
 
Join Date: Nov 2018
Location: Loganville
Posts: 52
Re: Front disk and drop question

http://67-72chevytrucks.com/vboard/a...1&d=1549757782
Attached Images
 
Rdwagoner is offline   Reply With Quote
Old 02-09-2019, 08:19 PM   #6
Rdwagoner
Registered User
 
Join Date: Nov 2018
Location: Loganville
Posts: 52
Re: Front disk and drop question

http://67-72chevytrucks.com/vboard/a...1&d=1549757917
Attached Images
  
Rdwagoner is offline   Reply With Quote
Old 02-09-2019, 08:36 PM   #7
Mike C
Registered User
 
Mike C's Avatar
 
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 6,962
Re: Front disk and drop question

Nice truck.

Yes, you can use a donor newer truck setup. You will need all of the brake and steering parts. The disc brake trucks ball joints and tie rod ends are different than the drum brake parts. You might save a few bucks. Or not. You will do much more work and it will take a lot longer.

I did the ECE converison on my 69 short step. I did the 2 1/2" drop spindles along with a 2" drop spring.

It is possible to get the pin out of the differential but it is a pain in the butt. It really needs to be fixed IMO regardless of what you do. And there is no way to correctly redrill the axles without removing them from the truck.

If it was mine, I would buy the ECE conversion setup and I would find a used 5 lug axle assembly. And actually, that is exactly what I did on my truck. Mine is a leaf spring truck and I found a 5 lug leaf setup on Craigslist that I swapped my original limited slip into.
__________________
44 Willys MB
52 M38A1
64 Corvette Coupe
68 Camaro 'vert LT1 & TH700
69 Z/28 355 12.6's @110
69 Chevy Short Step 4 1/2"/7" drop
72 Jimmy 4WD 4spd 4" & 35's
02 GMC 2500HD 4x4 Duramax
Mike C is offline   Reply With Quote
Old 02-09-2019, 08:54 PM   #8
Rdwagoner
Registered User
 
Join Date: Nov 2018
Location: Loganville
Posts: 52
Re: Front disk and drop question

Thank you, itís a work in progress. It would save some headache Iím sure to just buy the kit which Iíll most likely do. I donít think itíll be too hard to find a 5 lug rear from a junk yard. Depending on the year it comes from Iíll have to swap over all the brackets etc correct? Mine is coil spring front and rear so it may be more difficult.
Rdwagoner is offline   Reply With Quote
Old 02-09-2019, 11:34 PM   #9
67ChevyRedneck
Hittin E-Z Street on Mud Tires
 
67ChevyRedneck's Avatar
 
Join Date: Nov 2004
Location: Greenville, SC
Posts: 21,890
Re: Front disk and drop question

I took the entire front suspension off a 1971 GMC, but that was like 15 years ago, little harder to do now-a-days. You can use an entire set up off a square body, but stuff like ball joints and tie rod ends are different sizes. Not a huge deal, but when ordering drop spindles, etc. you need to match everything up. I believe you can just install 71/72 upper and lower ball joints in 73+ upper and lower control arms and order a kit for a 1971/72 C10.


I'd recommend to just go all out and do an ECE 4/6 drop.
If you're keeping 15's, I'd recommend not using the 2.5 " spindles and stick with the 2" spindle and 2" spring if you plan on keeping 15's. With 15's there will be a little bit of grinding on the brake caliper, maybe a tiny bit where the tie rod bolts up, but with the 2.5" spindle and 15's I had to trim a good bit on my lower A-arm. The 2" spindle will reduce that.


I stuck with 6 lug and rallies as well. While a lot of 17/18/20 wheels styles have come and gone, I've been rolling the same wheels for 15+ years.


Top pick is from around 2006, 2nd pic is recent.
Attached Images
 
__________________
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
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!

Last edited by 67ChevyRedneck; 02-09-2019 at 11:51 PM.
67ChevyRedneck is offline   Reply With Quote
Old 02-10-2019, 07:40 AM   #10
Rdwagoner
Registered User
 
Join Date: Nov 2018
Location: Loganville
Posts: 52
Re: Front disk and drop question

Wow that is sharp! Very nice looking truck! Few questions for you, if I stick with 15Ē wheels Iíll do what you said for dropping. If I go with a 17Ē vision torque wheel I could do the 2.5 spindle? What coil springs would you recommend as far as drop? Front/rear? Iím stuck between keeping rallyís vs buying new wheels and tires...

Side note, I see you have a 700r4, I do as well. How difficult was it for you to set the line pressure for correct shift points? Iím shifting into second about 10-12mph. I canít adjust much more, I have no slack in line at idle and itís tight at full throttle. Thanks for your input!
Rdwagoner is offline   Reply With Quote
Old 02-10-2019, 07:49 AM   #11
Rdwagoner
Registered User
 
Join Date: Nov 2018
Location: Loganville
Posts: 52
Re: Front disk and drop question

17Ē wheels I was thinking about. Opinion??

http://67-72chevytrucks.com/vboard/a...1&d=1549799343
Attached Images
 
Rdwagoner is offline   Reply With Quote
Old 02-10-2019, 10:34 AM   #12
Rdwagoner
Registered User
 
Join Date: Nov 2018
Location: Loganville
Posts: 52
Re: Front disk and drop question

I think Iím going to stick with the rally wheel look. Your truck looks awesome like that. I like the baby moons vs just a hub cap. Hereís my wheels now, I donít have many options for center caps, I may go with your style. Iím open to ideas with my current wheels....

http://67-72chevytrucks.com/vboard/a...1&d=1549809259
Attached Images
 
Rdwagoner is offline   Reply With Quote
Old 02-10-2019, 10:51 AM   #13
67ChevyRedneck
Hittin E-Z Street on Mud Tires
 
67ChevyRedneck's Avatar
 
Join Date: Nov 2004
Location: Greenville, SC
Posts: 21,890
Re: Front disk and drop question

Quote:
Originally Posted by Rdwagoner View Post
Wow that is sharp! Very nice looking truck! Few questions for you, if I stick with 15” wheels I’ll do what you said for dropping. If I go with a 17” vision torque wheel I could do the 2.5 spindle? What coil springs would you recommend as far as drop? Front/rear? I’m stuck between keeping rally’s vs buying new wheels and tires...

Side note, I see you have a 700r4, I do as well. How difficult was it for you to set the line pressure for correct shift points? I’m shifting into second about 10-12mph. I can’t adjust much more, I have no slack in line at idle and it’s tight at full throttle. Thanks for your input!
On the 700R4 I bought the Bowtie Overdrives TVmadeEZ throttle cable kit and their Torque Converter lock-up kit. Not cheap but worth it. The lock up kit has a brake safety switch that unlocks the TC when you apply the brakes. I set it up with a pressure gauge with the stock pressures I found online. My 700R has been in the truck since 2006 and has maybe +/-70K miles on it now. I do burn outs all the time, I should have killed it by now, but it still shifts great. I can't help it, the exhaust sounds too good and the backend is just too light.


Anything over 15" wheels and you can use the 2.5" spindle.

This is the problem I ran into and you can see I had to trim my A-Arm a bit. I wasn't happy about it. As far as springs, I installed whatever was in the ECE kit.
Attached Images
   
__________________
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
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!
67ChevyRedneck is offline   Reply With Quote
Old 02-10-2019, 10:56 AM   #14
Rdwagoner
Registered User
 
Join Date: Nov 2018
Location: Loganville
Posts: 52
Re: Front disk and drop question

Oh I see. Ok so when you say stick with 2Ē spindle and 2Ē spring that is the drop youíre referring to? Not whatís on there stock right now correct?
Rdwagoner is offline   Reply With Quote
Old 02-10-2019, 10:59 AM   #15
67ChevyRedneck
Hittin E-Z Street on Mud Tires
 
67ChevyRedneck's Avatar
 
Join Date: Nov 2004
Location: Greenville, SC
Posts: 21,890
Re: Front disk and drop question

Quote:
Originally Posted by Rdwagoner View Post
Oh I see. Ok so when you say stick with 2” spindle and 2” spring that is the drop you’re referring to? Not what’s on there stock right now correct?
Yea, my truck started with a 2.5 spindle with a 2" drop spring. I raised the nose back up 1/2" with a spacer because I thought it was too low.

If I could do it over again, I would go with a 2" drop spindle with a 2" drop spring.
__________________
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
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!
67ChevyRedneck is offline   Reply With Quote
Old 02-10-2019, 10:58 AM   #16
67ChevyRedneck
Hittin E-Z Street on Mud Tires
 
67ChevyRedneck's Avatar
 
Join Date: Nov 2004
Location: Greenville, SC
Posts: 21,890
Re: Front disk and drop question

I initially did a 4.5/6 drop (2.5 spindle/2" spring and 6" in the rear) and I didn't like it. The nose just sat too low. I installed a 1/4" spacer which brought the nose back up almost 1/2", so I'm back to what would have been a 4/6.


I also never liked those super deep trim rings. The next time you go to a decent sized swap meet that has a bunch of wheel vendors, take a look at beauty rings for a 6 or 7" wheel. I think they're only 1.5 or 2" deep. They look a lot better on rallys (I think) because you can see more of the wheel.


http://67-72chevytrucks.com/vboard/s...d.php?t=368243
Attached Images
 
__________________
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
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!
67ChevyRedneck is offline   Reply With Quote
Old 02-10-2019, 11:56 PM   #17
67ChevyRedneck
Hittin E-Z Street on Mud Tires
 
67ChevyRedneck's Avatar
 
Join Date: Nov 2004
Location: Greenville, SC
Posts: 21,890
Re: Front disk and drop question

I bought my wheels back in like 2004, I don't remember much other than the back is 15x8 and fronts are 15x7. I think they both have 4.5" BS. My tires are 235/70 rear and 215/75 front.

The caps are something I picked up at a swap meet, saw 'em and thought they looked cool. I painted the bowties red.

I'm not much help on the brakes... I redid everything stock on mine with the factory disc proportioning valve.
__________________
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
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!
67ChevyRedneck is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 06:20 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Copyright 1997-2013 67-72chevytrucks.com