68 F41 Leaf Spring, Joe Lucia

[Dale C.]

68 F41 leaf spring

Thanks
Dale

[Dick W.]

Re: 68 F41 Leaf Spring, Joe Lucia

I have a used F-41 out of a '67 that I will measure tomorrow. Will try to post a photo also. I believe the configuration of the 354130 is somewhat different from the original '68 spring

[Joe L.]

Re: 68 F41 Leaf Spring, Joe Lucia

68 F41 leaf spring

Thanks
Dale

Dale-----

The 354130 is a SERVICE-only leaf spring for 63-74 F-40/F-41 applications. I do not know its width (even though I have an NOS example). In any event, ALL 1963-77 Corvette leaf springs, F-41 or otherwise, were 2-1/4" wide. These work with a differential cover that uses 9/16" bolts. A 2-1/2" wide spring will not work, at all, with a differential cover with 9/16" bolts. It will not fit between the bolts. For a 2-1/2" wide spring to work with any 1963-77 Corvette, the differential cover has to be changed to the later cover which uses 7/16" spring plate bolts. Many Corvettes received this cover in SERVICE since GM supplied it at one time for SERVICE of 1963-77 applications.

[Dale C.]

Re: 68 F41 Leaf Spring, Joe Lucia

Joe
Thanks for the good info. As it's a service replacement, shouldn't or will trim heights be the same as OEM?
Dale

[Robert N.]

Re: 68 F41 Leaf Spring, Joe Lucia

Dick,

While you are measuring, can you get an exact length of the top leaf? Also, is the scallop the same as the other springs? I have a 69 L-36 with F-41, but only 6/7 leafs. I assume finding one leaf will be impossible, so will need to fabricate.

I have seen different opinions if F-41 was an L-36 option, opinions? Build sheet long gone, but I do have an EA tag, 3832518, from the front spring that looks original.

Thanks,
Robert

[Grant W.]

Re: 68 F41 Leaf Spring, Joe Lucia

Hi Dale and Joe and Dick!!!!

Well after reading the post from Dale it got me curious. I am restoring my 71 454 a complete rear suspension restoration......The whole rear section.
I looked at the leaf spring on the 71 and it is F41 and it measure 2 1/4 wide

Went to the other garage and it is freezing out there ready to snow, and found one of my spare original F41 springs and it measures 2 1/4.

So I went to my 68 to check out the rear spring F41 and it is 2 1/4 wide

The moral of the story......I didn't screw up in restoring the wrong spring on the 71 or 68.

I can sleep well tonight and not worry about it.

Thanks for the info from Guru Joe.

Hope this helps out Dale.

Grant

[Joe L.]

Re: 68 F41 Leaf Spring, Joe Lucia

Joe
Thanks for the good info. As it's a service replacement, shouldn't or will trim heights be the same as OEM?
Dale

Dale------


There's no guarantee that a SERVICE-only piece is going to produce the exact same ride height as the original spring. However, it should produce a ride height that is within the range specified in the original specifications.