Spring differences - The 1947 - Present Chevrolet & GMC Truck Message Board Network

HD071502 · 12-29-2018, 08:44 PM

First post here! Been getting tons of education. I'm in the process of making my '64 into a reliable driver.
I'm swapping '79 burb control arms into my '64 and noticed the '64 spring is a little shorter than the '79. Are they interchangeable? I have 2-1/2 drop spindles on order, was thinking of using the '64 springs to get a little more on the cheap.

**Captainfab** · 12-30-2018, 12:29 AM

I don't know why you couldn'y use the '64 spring with the '73-'87 control arms. Just make sure the tail of the spring is in the correct spot in the lower control arm.

HD071502 · 12-30-2018, 02:28 PM

I put them side by side and the ‘64 has one less coil. They don’t appear to be cut because it flattens out on both sides. Diameters are the same. I’m going with it and we’ll see how it turns out!

AcampoDave · 01-01-2019, 09:35 PM

According Early Classic Enterprises, the springs interchange. The the deal is the later model ones are designed to support the extra weight of the vehicle. I used my '66 springs when i put the squarebody front end on my avatar truck and strangely the front ended up 1.5 inches lower than it was with the exact same springs in the original suspension. A 3" drop in the rear brought things to a very slight rake.

12-29-2018, 08:44 PM	#1
HD071502 Registered User Join Date: Aug 2018 Location: Burlington Posts: 2	Spring differences First post here! Been getting tons of education. I'm in the process of making my '64 into a reliable driver. I'm swapping '79 burb control arms into my '64 and noticed the '64 spring is a little shorter than the '79. Are they interchangeable? I have 2-1/2 drop spindles on order, was thinking of using the '64 springs to get a little more on the cheap. Last edited by HD071502; 12-29-2018 at 08:58 PM.

12-30-2018, 12:29 AM	#2
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,246	Re: Spring differences I don't know why you couldn'y use the '64 spring with the '73-'87 control arms. Just make sure the tail of the spring is in the correct spot in the lower control arm. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

12-30-2018, 02:28 PM	#3
HD071502 Registered User Join Date: Aug 2018 Location: Burlington Posts: 2	Re: Spring differences I put them side by side and the ‘64 has one less coil. They don’t appear to be cut because it flattens out on both sides. Diameters are the same. I’m going with it and we’ll see how it turns out! Attached Images

01-01-2019, 09:35 PM	#4
AcampoDave Registered User Join Date: Feb 2013 Location: central California Posts: 2,733	Re: Spring differences According Early Classic Enterprises, the springs interchange. The the deal is the later model ones are designed to support the extra weight of the vehicle. I used my '66 springs when i put the squarebody front end on my avatar truck and strangely the front ended up 1.5 inches lower than it was with the exact same springs in the original suspension. A 3" drop in the rear brought things to a very slight rake.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.