70 C10 Custom Suspension - The 1947 - Present Chevrolet & GMC Truck Message Board Network

amloya · 09-06-2009, 11:12 AM

Recently purchased a 6 lug disc - disc brake upgrade kit for my 70 C10 Custom stock drum - drum setup. What suspension upgrades should I do while upgrading brakes? I want to keep stock ride height.

PanelDeland · 09-06-2009, 11:42 AM

You will have to change wheels.The stock ones will not fit over the calipers.Replacing worn tie rod ends,ball joints and other suspension parts is also a no-brainer.New shocks and a sway bar would be nice upgrades as would a power booster and a new proportioning valve is also required.The booster will need the proper length rod to activate it.
Just random things I did or have in the works on my disc swap.

amloya · 09-06-2009, 12:08 PM

Thanks PanelDeland. I purchased my kit from CPP and was not aware I had to upgrade wheels. What size wheels are required, 16s or 17s?

Tx Firefighter · 09-06-2009, 12:15 PM

Check the wheels before you get new ones. I personally have converted to 6 lug discs and had one wheel that fit and one that rubbed. Apparently, GM used slightly differences in wheels over time and there's really no way to tell what you have.

If they do rub (quite likely), there is no need to go to a plus one bigger wheel. Any aftermarket 6 lug wheel will give the clearance you need even at 15 inch size. Aftermarket wheels accommodate disc brakes due to their designed shape.

amloya · 09-06-2009, 12:19 PM

Thanks. I will definitely check them before starting with upgrade.

PanelDeland · 09-06-2009, 12:21 PM

Like Tx Firefighter said.The cheapest way is to use a Rally from the mid 70's 4X4 truck or a junkyard 6 lug.Here's a pic of one of my rallies.I painted mine in dark grey cause I don't live close enough to Tx to have Firefighter powder coat them.

09-06-2009, 11:12 AM	#1
amloya Registered User Join Date: Aug 2006 Location: Texas Posts: 29	70 C10 Custom Suspension Recently purchased a 6 lug disc - disc brake upgrade kit for my 70 C10 Custom stock drum - drum setup. What suspension upgrades should I do while upgrading brakes? I want to keep stock ride height.

09-06-2009, 11:42 AM	#2
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,993	Re: 70 C10 Custom Suspension You will have to change wheels.The stock ones will not fit over the calipers.Replacing worn tie rod ends,ball joints and other suspension parts is also a no-brainer.New shocks and a sway bar would be nice upgrades as would a power booster and a new proportioning valve is also required.The booster will need the proper length rod to activate it. Just random things I did or have in the works on my disc swap. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

09-06-2009, 12:08 PM	#3
amloya Registered User Join Date: Aug 2006 Location: Texas Posts: 29	Re: 70 C10 Custom Suspension Thanks PanelDeland. I purchased my kit from CPP and was not aware I had to upgrade wheels. What size wheels are required, 16s or 17s?

09-06-2009, 12:15 PM	#4
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: 70 C10 Custom Suspension Check the wheels before you get new ones. I personally have converted to 6 lug discs and had one wheel that fit and one that rubbed. Apparently, GM used slightly differences in wheels over time and there's really no way to tell what you have. If they do rub (quite likely), there is no need to go to a plus one bigger wheel. Any aftermarket 6 lug wheel will give the clearance you need even at 15 inch size. Aftermarket wheels accommodate disc brakes due to their designed shape. __________________ I'm on the Instagram- @Gearhead_Kevin

09-06-2009, 12:19 PM	#5
amloya Registered User Join Date: Aug 2006 Location: Texas Posts: 29	Re: 70 C10 Custom Suspension Thanks. I will definitely check them before starting with upgrade.

09-06-2009, 12:21 PM	#6
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,993	Re: 70 C10 Custom Suspension Like Tx Firefighter said.The cheapest way is to use a Rally from the mid 70's 4X4 truck or a junkyard 6 lug.Here's a pic of one of my rallies.I painted mine in dark grey cause I don't live close enough to Tx to have Firefighter powder coat them. Attached Images __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"



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