Quanta Pre-Cut Rear Spring Liners vs. Single Roll

[James W.]

Has anyone used the 9-leaf spring liner kit from Quanta? I see they are pre-cut and not in a roll like other vendors sell.

Thanks,

James

[Larry M.]

Re: Quanta Pre-Cut Rear Spring Liners vs. Single Roll

Excellent quality and no issues.

They are generally extra long with center hole punched already. Just install and cut to fit to get a "pretty" look.

Larry

EDIT: Just be aware that the Quanta liners are a different thickness than originals. So this will affect rear spring bolt length to the axle housing. Your (some) existing bolts may need to be trimmed or replaced. Probably difference of about 1/4 inch or so overall.

I have the thickness of OEM and Quanta liners as well as from other suppliers..........just not handy right now. But can get if needed.

[Harry S.]

Re: Quanta Pre-Cut Rear Spring Liners vs. Single Roll

Has anyone used the 9-leaf spring liner kit from Quanta? I see they are pre-cut and not in a roll like other vendors sell.

Thanks,

James

I did years ago and all was ok. I did have to convince them the 63 liners were different than 64-67 due to all the leaves being curved. They sent me the length I needed and I finished the spring.

[James W.]

Re: Quanta Pre-Cut Rear Spring Liners vs. Single Roll

Are there any vendors that sell a spring liner that is close to original thickness? I will be using the four (4) original spring plate bolts and the original center spring bolt.

Thanks to you both for your information.


Thanks,

James

[Larry M.]

Re: Quanta Pre-Cut Rear Spring Liners vs. Single Roll

None that I am aware.

In my search for all original liners, I found some GM NOS, some later GM service replacement, Quanta, and DR REBUILD. I chose the Quanta.

Thickness from my notes are:

Original GM: 0.057 inch thick per liner

GM Service: Less than original and more than Quanta. Exact thickness unknown until I get in attic to measure. It is also documented somewhere on this forum or CF threads on this subject from about 10 -15 years ago.

Quanta: 0.042 inch thick

DR REBUILD: 0.032 inch thick.

I used 7 liners for the spring.

If using Quanta vs 1964-7 original liners, your spring bolts will effectually be longer (go into or thru the rear cover plate) by about 1/8 inch more. This may or may not be significant, but I would definitely check the blind holes. Too many horror stories of those that did not.

Larry

[Jeffrey S.]

Re: Quanta Pre-Cut Rear Spring Liners vs. Single Roll

Are there any vendors that sell a spring liner that is close to original thickness? I will be using the four (4) original spring plate bolts and the original center spring bolt.

Thanks to you both for your information.


Thanks,

James

James,
Several years ago I purchased liner by the foot from Eaton Detroit to replace liners from an original spring. It was exactly the same thickness. I took careful measurements but will have to search to find them but I know they were exact. I don't know if they still sell it that way or if they are the same but worth checking into. I had to cut the center configuration to the original shape so I made a jig from 1/4" plywood so that all liners would be exactly the same and had to put the bolt hole in.
Jeff

[Jeffrey S.]

Re: Quanta Pre-Cut Rear Spring Liners vs. Single Roll

I found the invoice for the liners. The part number was PL225; 2 1/4" Channel Liner. At that time it was $2 per foot. That was in 2010.
Jeff

[Larry M.]

Re: Quanta Pre-Cut Rear Spring Liners vs. Single Roll

Since I can no longer edit my Post #5 above due to elapsed time, hopefully these few sentences will help to clarify.

Based on information I recently received, the leaf liners mentioned as DR REBUILD in my post were purchased from his company in early 2010, but were ones that he had sourced from a third party at this time. GM factory liners were no longer available. These liners were not ones that he had a personal hand in designing or manufacturing.

However, I found these liners to be quite good, but after evaluating 5-6 different sets from various sources and suppliers, I chose the Quanta liners at that time for my 67 car.

Larry Mulder

[Jeffrey S.]

Re: Quanta Pre-Cut Rear Spring Liners vs. Single Roll

I just measured some leftover pieces from the lot purchased from Eaton Detroit (this is why I never throw anything away) and they measured .055" with my cheap Harbor Freight digital calipers. This is close enough to say they are the same thickness as OEM.
Jeff

[Harry S.]

Re: Quanta Pre-Cut Rear Spring Liners vs. Single Roll

This made me curious, so I just went to the shelf and pulled the liners I took out of my 63 spring 20 years ago. .042 is what I got.

[James W.]

Re: Quanta Pre-Cut Rear Spring Liners vs. Single Roll

I will measure my original liners that I removed from the spring tonight when I get home and report what I find.

James

[Larry M.]

Re: Quanta Pre-Cut Rear Spring Liners vs. Single Roll

Finally got to measure the GM service replacement liners I also found, purchased, and evaluated back in 2010. See Post #5. They mic'ed out at 0.040 inches......or about the same as the Quanta liners.

Harry......perhaps that is what was used on your 63 spring. Possibly GM service replacements??

FWIW.

Larry

[James W.]

Re: Quanta Pre-Cut Rear Spring Liners vs. Single Roll

Did a quick measurement with my digital caliper and got a reading of 0.052" on my original '65 rear spring liner thickness. This was at the end of one of the liners.


James

[Todd L.]

Re: Quanta Pre-Cut Rear Spring Liners vs. Single Roll

I just searched the Quanta product listed in the previous posts and this is what I found.

https://www.gastanks.com/1963-66-Corvette-Rear-Leaf-Spring-Rebuild-Kit-Standard-Suspension/productinfo/28-05A/

It doesn't call out a thickness and has hardware and paint included. Is this hardware and paint correct for NCRS judging?

Thanks,
Todd

[James W.]

Re: Quanta Pre-Cut Rear Spring Liners vs. Single Roll

Todd,

The hardware (center bolt) will probably be longer than the original and will have to be shortened. The paint will be close to the original color. I am going to purchase the spring liner only as I will be reusing my original center spring bolt and have bought a different kind of gray galvanizing spray paint. The thickness will be what it will be, most likely thinner than the original liner material.

James

I just searched the Quanta product listed in the previous posts and this is what I found.

https://www.gastanks.com/1963-66-Corvette-Rear-Leaf-Spring-Rebuild-Kit-Standard-Suspension/productinfo/28-05A/

It doesn't call out a thickness and has hardware and paint included. Is this hardware and paint correct for NCRS judging?

Thanks,
Todd