1970 C-10 Handling issues. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Qwertyuiopi · 10-08-2018, 11:27 AM

I would like to request some assistance.

I’m having issues with horrible stability, handling. When I drive down the road it feels like the truck is “ wondering” all over the road.

I bought a 1970 C-10 and have used parts from a 1972 c-10 to convert it from drum brakes to disk brakes. Took it in for an alignment, alignment guy says spindles are not compatible and that’s why I don’t have any stability going down the road. Is this true ? I thought they would work, specially since I installed new ball joints, tie rods(inner & outer).

Any suggestions ?
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**PGSigns** · 10-08-2018, 08:37 PM

The parts are compatible. Post some pictures of the setup both front and rear. Till you get it worked out and get a good alignment under it its not going to drive that good.
Jimmy

Zeroman · 10-09-2018, 12:50 PM

Did you remove the center link and re-install it?

Sometimes people get the center link backwards. I understand this will make the truck drive and steer incorrectly.

The tie rods should be on the backside of the center link with the castle nuts facing the front of the truck.

Here is a thread.....

http://67-72chevytrucks.com/vboard/s...d.php?t=400205

Just wondering.

Mike C · 10-09-2018, 08:33 PM

I believe the ball joints are different are they not? Did you use the 70 control arms and ball joints or did you use the newer ones?

AZ 67 C10 · 10-09-2018, 09:46 PM

Quote:

Originally Posted by Mike C

I believe the ball joints are different are they not? Did you use the 70 control arms and ball joints or did you use the newer ones?

Yes IIRC the 67-70 balls joints are smaller than the 71 and up. The guy at the shop stating the spindles are not compatible might be referencing the ball joint sizes being incompatible. Too small of ball joints on the tie rod into the spindle would cause some undesirable handling I would imagine.

**PGSigns** · 10-11-2018, 06:42 AM

The swap works well with the correct combination of parts. So tell us what parts went where and what new parts you used and what they were for and we should be able to get this worked out. I am running the 73 and up stuff on my 66 and it works great with the right stuff. In the 60 to 66 section up in the FAQ section there are links to doing the disc brake swap and what combination of parts to use.
Jimmy

BigTopGT · 09-14-2019, 10:08 PM

When you get what feels like random lane wandering, I always want to look at the outer tie rod ends, first.

They tend to get sloppy and the steering gets "twitchy", for sure. (a too-small ball joint that's a little slopy in the mounting slot would give you a similar issue, too, I bet)

10-08-2018, 11:27 AM	#1
Qwertyuiopi Registered User Join Date: Oct 2018 Location: Tulsa, OK Posts: 1	1970 C-10 Handling issues. I would like to request some assistance. I’m having issues with horrible stability, handling. When I drive down the road it feels like the truck is “ wondering” all over the road. I bought a 1970 C-10 and have used parts from a 1972 c-10 to convert it from drum brakes to disk brakes. Took it in for an alignment, alignment guy says spindles are not compatible and that’s why I don’t have any stability going down the road. Is this true ? I thought they would work, specially since I installed new ball joints, tie rods(inner & outer). Any suggestions ? Posted via Mobile Device

10-08-2018, 08:37 PM	#2
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: 1970 C-10 Handling issues. The parts are compatible. Post some pictures of the setup both front and rear. Till you get it worked out and get a good alignment under it its not going to drive that good. Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic

10-09-2018, 12:50 PM	#3
Zeroman Registered User Join Date: Mar 2013 Location: Houston, TX Posts: 348	Re: 1970 C-10 Handling issues. Did you remove the center link and re-install it? Sometimes people get the center link backwards. I understand this will make the truck drive and steer incorrectly. The tie rods should be on the backside of the center link with the castle nuts facing the front of the truck. Here is a thread..... http://67-72chevytrucks.com/vboard/s...d.php?t=400205 Just wondering.

10-09-2018, 08:33 PM	#4
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,728	Re: 1970 C-10 Handling issues. I believe the ball joints are different are they not? Did you use the 70 control arms and ball joints or did you use the newer ones? __________________ 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

10-11-2018, 06:42 AM	#6
PGSigns Senior Member Join Date: Jan 2011 Location: Hayes Va Posts: 4,569	Re: 1970 C-10 Handling issues. The swap works well with the correct combination of parts. So tell us what parts went where and what new parts you used and what they were for and we should be able to get this worked out. I am running the 73 and up stuff on my 66 and it works great with the right stuff. In the 60 to 66 section up in the FAQ section there are links to doing the disc brake swap and what combination of parts to use. Jimmy __________________ 60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic

09-14-2019, 10:08 PM	#7
BigTopGT Registered User Join Date: Apr 2019 Location: Fort Lauderdale, Florida 33311 Posts: 104	Re: 1970 C-10 Handling issues. When you get what feels like random lane wandering, I always want to look at the outer tie rod ends, first. They tend to get sloppy and the steering gets "twitchy", for sure. (a too-small ball joint that's a little slopy in the mounting slot would give you a similar issue, too, I bet)



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