disc brake conversion on 68' - ball joint question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

AusTx68 · 08-27-2009, 07:40 PM

I'm doing a frame off on my 68' which already had the front disc brake conversion. Without thinking I put new 68' ball joints in my control arms. Now I'm having trouble getting the ball joints in the spindles. The old spindles where 72' and I'm now using ECE dropped spindles. I just ruined a low ball joint while trying to tighten the bolt. The bolt stripped. Seems like the ball joint is too big for the spindle. Should I have gone with 72' ball joints? Does anyone know if they are smaller than the 68'?

This frontend rebuild has been a complete nightmare. Way harder than I thought it would be!

AusTx68 · 08-27-2009, 07:58 PM

Just got off the phone with ECE. I had no idea they were still open with I posted my question.

In my case the PO did the conversion so I'm working thinking 68'. My 4/6 drop kit has 71'-72' spindles to replace the 72' spindles on the truck. Turns out the 68' ball joints have a different taper. That explains the fitment problem. Now I need to replace all my damn ball joints! SOB!

I doubt I can return the pressed in lowers. The uppers are going back for an exchange. This sucks but hey, it was my damn mistake.

**lolife99** · 08-27-2009, 08:05 PM

Did you use 63-70 tie rod ends or 71-72 tie rod ends when you ordered new parts?

If you have 71-72 spindles they need to be the same.

AusTx68 · 08-27-2009, 08:29 PM

Since it already had the disc brake conversion with 72' spindles, I assume it also had the matching tie rods. That's why I decided to switch out the ball joints for 71'-72' instead of returning the spindles to ECE for ones for a 68'.

**lolife99** · 08-27-2009, 08:59 PM

Sounds like you have it figured out. Make sure to post up some pictures to keep us updated.

AusTx68 · 08-31-2009, 06:08 PM

I was able to get it figured out. The control-arm shafts where a *****!

**lolife99** · 08-31-2009, 06:27 PM

Looks nice!

Not nit-picking,... but your rear "Upper" shock mount brackets are on backwards.

AusTx68 · 08-31-2009, 07:12 PM

Quote:

Originally Posted by lolife99

Looks nice!

Not nit-picking,... but your rear "Upper" shock mount brackets are on backwards.

As far as I'm concerned that's not being nit-picky. That's a down right error on my part. Thanks for pointing it out.

SIXT8LOU · 09-15-2009, 02:05 AM

Thats a clean looking frame off resto... sharp....keep us posted....

redbaron69 · 09-15-2009, 08:19 AM

"the control-arm shafts were a *****!"

NOT WHAT IM WANTING TO HEAR

getting ready to attempt this myself any advice? dos... donts... thanks

VA72C10 · 09-15-2009, 10:50 AM

Beautiful frame! Nice work!!!

Twisted78SS · 09-15-2009, 11:54 AM

For clarification to those of us doing the same thing, could you possibly post a closer shot of the shock brackets on backwards and maybe one of them installed correctly..

Thanks,

chevy_mike · 09-15-2009, 12:02 PM

Not the greatest pic but is does show the way the brackets should mount.

**67cheby** · 09-15-2009, 12:21 PM

nice work on the frame , one more thing to point out the upper ball joints should be on top of the a arm instead of under it , i believe someone correct me if i am wrong.. i put on my upper strong arms about a month or so ago and while searching this site realized i had the on upside down !!!

AusTx68 · 09-15-2009, 10:08 PM

Quote:

Originally Posted by 67cheby

nice work on the frame , one more thing to point out the upper ball joints should be on top of the a arm instead of under it , i believe someone correct me if i am wrong.. i put on my upper strong arms about a month or so ago and while searching this site realized i had the on upside down !!!

Maybe the strong arms are setup different. The stock location is under the control arm.

noonzor · 09-15-2009, 11:12 PM

very nice lookin frame, i hope to have mine lookin similar, she'll be blasted and painted by the end of the month!

AusTx68 · 09-15-2009, 11:29 PM

Quote:

Originally Posted by redbaron69

"the control-arm shafts were a *****!"

NOT WHAT IM WANTING TO HEAR

getting ready to attempt this myself any advice? dos... donts... thanks

Loosen the caps while they are still on the truck. I first used a pipe wrench but it kept slipping. I later switched to sockets and that made a big difference. I think it was a metric 36 for the uppers.

**lolife99** · 09-16-2009, 12:03 PM

Quote:

Originally Posted by AusTx68

Maybe the strong arms are setup different. The stock location is under the control arm.

That's incorrect.
The stock upper balljoints were installed on the "top side" of the a-arm with rivets from the factory.
The rivets have to be removed and replaced with bolts when you install the new balljoint.

I'm not sure if it matters where the balljoint is installed,... but most people put them on the top side.

AusTx68 · 09-16-2009, 12:28 PM

Oh wait..I see what you are talking about now. Yea, I totally agree. Well, I looks like i got some work to do this weekend.

**michael bustamante** · 09-16-2009, 01:07 PM

I did that too, I kept looking at them thinkin "something just aint right" then I figured Id get a better angle by turning the rear uppers around

SIXT8LOU · 09-22-2009, 01:36 AM

Iam doing the disc brake conversion also,,,can you do me a big favor, i think i read the uppers are 1 3/8s,,,,,,, and the lowers are 1 5/8s (socket size) not sure but i got the pipe wrench ready! also are the center links the same from a 68 vs a 71? do i need to change out mine for the 71? thanks any help is appreciated....Lou

**lolife99** · 09-22-2009, 06:17 AM

Quote:

Originally Posted by SIXT8LOU

Iam doing the disc brake conversion also,,,can you do me a big favor, i think i read the uppers are 1 3/8s,,,,,,, and the lowers are 1 5/8s (socket size) not sure but i got the pipe wrench ready! also are the center links the same from a 68 vs a 71? do i need to change out mine for the 71? thanks any help is appreciated....Lou

Yes they are different.
Use the centerlink and the tie rod ends from your '71 (with your 71 spindles),... and everything will be fine.

**michael bustamante** · 09-22-2009, 10:59 AM

ok heres another one for you. are the center links from a 3/4 ton 71-72 and tie rods the same as a half ton?

**lolife99** · 09-22-2009, 12:12 PM

I'm not familiar with the 3/4 ton stuff.
A quick parts cross reference at your local parts supplier should confirm or deny it.
I just don't know right off hand. Anyone else know?

SIXT8LOU · 09-22-2009, 09:34 PM

thanks!!!! ill get to it maybe after work tommorow.....great help...

08-27-2009, 07:40 PM	#1
AusTx68 Registered User Join Date: Nov 2008 Location: Italy Posts: 1,278	disc brake conversion on 68' - ball joint question I'm doing a frame off on my 68' which already had the front disc brake conversion. Without thinking I put new 68' ball joints in my control arms. Now I'm having trouble getting the ball joints in the spindles. The old spindles where 72' and I'm now using ECE dropped spindles. I just ruined a low ball joint while trying to tighten the bolt. The bolt stripped. Seems like the ball joint is too big for the spindle. Should I have gone with 72' ball joints? Does anyone know if they are smaller than the 68'? This frontend rebuild has been a complete nightmare. Way harder than I thought it would be! __________________ '68 C-10 SWB 383 Stroker (Sold 3/2/2013) '87 R2500 LWB 454 TBI converted to Carb Last edited by AusTx68; 08-27-2009 at 07:41 PM.

08-27-2009, 07:58 PM	#2
AusTx68 Registered User Join Date: Nov 2008 Location: Italy Posts: 1,278	Re: disc brake conversion on 68' - ball joint question Just got off the phone with ECE. I had no idea they were still open with I posted my question. In my case the PO did the conversion so I'm working thinking 68'. My 4/6 drop kit has 71'-72' spindles to replace the 72' spindles on the truck. Turns out the 68' ball joints have a different taper. That explains the fitment problem. Now I need to replace all my damn ball joints! SOB! I doubt I can return the pressed in lowers. The uppers are going back for an exchange. This sucks but hey, it was my damn mistake. __________________ '68 C-10 SWB 383 Stroker (Sold 3/2/2013) '87 R2500 LWB 454 TBI converted to Carb

08-27-2009, 08:05 PM	#3
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: disc brake conversion on 68' - ball joint question Did you use 63-70 tie rod ends or 71-72 tie rod ends when you ordered new parts? If you have 71-72 spindles they need to be the same. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 Last edited by lolife99; 08-27-2009 at 08:05 PM.

08-27-2009, 08:29 PM	#4
AusTx68 Registered User Join Date: Nov 2008 Location: Italy Posts: 1,278	Re: disc brake conversion on 68' - ball joint question Since it already had the disc brake conversion with 72' spindles, I assume it also had the matching tie rods. That's why I decided to switch out the ball joints for 71'-72' instead of returning the spindles to ECE for ones for a 68'. __________________ '68 C-10 SWB 383 Stroker (Sold 3/2/2013) '87 R2500 LWB 454 TBI converted to Carb

08-27-2009, 08:59 PM	#5
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: disc brake conversion on 68' - ball joint question Sounds like you have it figured out. Make sure to post up some pictures to keep us updated. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

08-31-2009, 06:08 PM	#6
AusTx68 Registered User Join Date: Nov 2008 Location: Italy Posts: 1,278	Re: disc brake conversion on 68' - ball joint question I was able to get it figured out. The control-arm shafts where a *****! __________________ '68 C-10 SWB 383 Stroker (Sold 3/2/2013) '87 R2500 LWB 454 TBI converted to Carb

08-31-2009, 06:27 PM	#7
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: disc brake conversion on 68' - ball joint question Looks nice! Not nit-picking,... but your rear "Upper" shock mount brackets are on backwards. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

09-15-2009, 02:05 AM	#9
SIXT8LOU Registered User Join Date: Oct 2007 Location: Corona,Ca Posts: 146	Re: disc brake conversion on 68' - ball joint question Thats a clean looking frame off resto... sharp....keep us posted.... __________________ 68 C/10 short bed 77 C/20 silverado long bed 05 GMC Duramax Crew

09-15-2009, 08:19 AM	#10
redbaron69 Registered User Join Date: Jan 2009 Location: marion nc Posts: 588	Re: disc brake conversion on 68' - ball joint question "the control-arm shafts were a *****!" NOT WHAT IM WANTING TO HEAR getting ready to attempt this myself any advice? dos... donts... thanks __________________ 69 short fleet 350/350 "under construction" 70 short step 307/3 speed

09-15-2009, 10:50 AM	#11
VA72C10 VA72C10 Join Date: Mar 2008 Location: Midlothian, VA Posts: 25,267	Re: disc brake conversion on 68' - ball joint question Beautiful frame! Nice work!!! __________________ Looking for a 67-72 swb or blazer project in or around VA.

09-15-2009, 11:54 AM	#12
Twisted78SS Wide n'Low Join Date: Jan 2007 Location: La Center, WA Posts: 1,511	Re: disc brake conversion on 68' - ball joint question For clarification to those of us doing the same thing, could you possibly post a closer shot of the shock brackets on backwards and maybe one of them installed correctly.. Thanks, __________________ Trippin Hazard.. 67 swb, Gold Member.. 68 Suburban Air Force Retired

09-15-2009, 12:02 PM	#13
chevy_mike Never Ending Projects Join Date: Jul 2006 Location: San Diego, CA Posts: 3,836	Re: disc brake conversion on 68' - ball joint question Not the greatest pic but is does show the way the brackets should mount. __________________ . 1965 C10 Panel, Tiki Express http://www.67-72chevytrucks.com/vboa...d.php?t=506580 SOLD 1968 Chevy C10, Long, Fleetside, Hot Rod Hauler http://67-72chevytrucks.com/vboard/s...d.php?t=313233 SOLD 1965 Chevy C10, Long, Fleetside, Hot Rod C10 http://67-72chevytrucks.com/vboard/s...d.php?t=415702 SOLD We were given two ears and one mouth for a reason... listen twice as much and speak half as often...

09-15-2009, 12:21 PM	#14
67cheby 67cheby Join Date: Sep 2008 Location: siloam springs ar 72761 Posts: 17,890	Re: disc brake conversion on 68' - ball joint question nice work on the frame , one more thing to point out the upper ball joints should be on top of the a arm instead of under it , i believe someone correct me if i am wrong.. i put on my upper strong arms about a month or so ago and while searching this site realized i had the on upside down !!! __________________ Check out Slosh Tubz, bolt-in inner fenders for frame laying C-10's Slosh Tubz Introductory Price $559 67 Cheby's Dropmember Build Thread Slosh Tubz on Facebook http://67-72chevytrucks.com/vboard/s...d.php?t=554172

09-15-2009, 11:12 PM	#16
noonzor Registered User Join Date: Aug 2009 Location: Edmonton, Alberta Posts: 818	Re: disc brake conversion on 68' - ball joint question very nice lookin frame, i hope to have mine lookin similar, she'll be blasted and painted by the end of the month! __________________ 69 c10 Shortbox Build http://67-72chevytrucks.com/vboard/s...d.php?t=360622

09-16-2009, 12:28 PM	#19
AusTx68 Registered User Join Date: Nov 2008 Location: Italy Posts: 1,278	Re: disc brake conversion on 68' - ball joint question Oh wait..I see what you are talking about now. Yea, I totally agree. Well, I looks like i got some work to do this weekend. __________________ '68 C-10 SWB 383 Stroker (Sold 3/2/2013) '87 R2500 LWB 454 TBI converted to Carb



Register or Log In To remove these advertisements.

09-16-2009, 01:07 PM	#20
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,862	Re: disc brake conversion on 68' - ball joint question I did that too, I kept looking at them thinkin "something just aint right" then I figured Id get a better angle by turning the rear uppers around __________________ 1967custom

09-22-2009, 01:36 AM	#21
SIXT8LOU Registered User Join Date: Oct 2007 Location: Corona,Ca Posts: 146	Re: disc brake conversion on 68' - ball joint question Iam doing the disc brake conversion also,,,can you do me a big favor, i think i read the uppers are 1 3/8s,,,,,,, and the lowers are 1 5/8s (socket size) not sure but i got the pipe wrench ready! also are the center links the same from a 68 vs a 71? do i need to change out mine for the 71? thanks any help is appreciated....Lou __________________ 68 C/10 short bed 77 C/20 silverado long bed 05 GMC Duramax Crew

09-22-2009, 10:59 AM	#23
michael bustamante Senior Member Join Date: Sep 2007 Location: Albuquerque NM Posts: 7,862	Re: disc brake conversion on 68' - ball joint question ok heres another one for you. are the center links from a 3/4 ton 71-72 and tie rods the same as a half ton? __________________ 1967custom

09-22-2009, 12:12 PM	#24
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: disc brake conversion on 68' - ball joint question I'm not familiar with the 3/4 ton stuff. A quick parts cross reference at your local parts supplier should confirm or deny it. I just don't know right off hand. Anyone else know? __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

09-22-2009, 09:34 PM	#25
SIXT8LOU Registered User Join Date: Oct 2007 Location: Corona,Ca Posts: 146	Re: disc brake conversion on 68' - ball joint question thanks!!!! ill get to it maybe after work tommorow.....great help... __________________ 68 C/10 short bed 77 C/20 silverado long bed 05 GMC Duramax Crew

Register or Log In To remove these advertisements.