The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - How low before needing a C notch on rear frame rails on 67-72 C10

3767 · 10-27-2019, 04:01 PM

Mine is at 5 without a notch. But......ride isnt the best without it at this height. U can use drop springs and blocks to get what u want. I just did springs and if I had 2 do it all over I would use the 2 inch blocks then drop spring 2 get me where I wanted. Once u get past 4 inches u really need to have a notch. If u look at the kits that are out there now, when they get down to 5+ inches lowered they all include plates 4 a c notch. There is a reason and it's the travel u wont have without it. Even with air ride, most all of them have a c notch and not all lay frame with it.

10-27-2019, 04:01 PM	#2
3767 Registered User Join Date: Aug 2019 Location: Vale,nc Posts: 174	Re: How low before needing a C notch on rear frame rails on 67-72 C10 Mine is at 5 without a notch. But......ride isnt the best without it at this height. U can use drop springs and blocks to get what u want. I just did springs and if I had 2 do it all over I would use the 2 inch blocks then drop spring 2 get me where I wanted. Once u get past 4 inches u really need to have a notch. If u look at the kits that are out there now, when they get down to 5+ inches lowered they all include plates 4 a c notch. There is a reason and it's the travel u wont have without it. Even with air ride, most all of them have a c notch and not all lay frame with it.