Owners of Late '66 Corvettes...Please Read On (Sur

[Tim E.]

It appears that in about May 1966, St. Louis built cars switched over to the '67 method for securing the front brake crossover line to the frame crossmember. The '67 method uses 2 flat clamps (bolted in a hole above each of the nut plates used to mount the lower control arm) where the '66 method uses a single wire clip (in a hole in the center of the crossmember). Perhaps St. Louis ran out of either '66 style clips or crossmembers late in the '66 production run(?).

My June 15, 1966 car uses the 2 flat clamp '67 method and has all 3 holes. I know of 2 May built cars that also use the '67 method.

A favor please: If you have a late '66 (April or later) and are (reasonably) sure your front brake line is mounted the way it was originally, I'd appreciate hearing from you!

The information that would be useful:

VIN Number (e.g. 194676S124431)
Build Date (e.g. June 15, 1966)
Style of Hold Down Clamp (2 Flat or Spring Style)
Number of Mounting Holes in Crossmember (1, 2, or 3)
St. Louis Car (yes or no)

Thanks in advance. I'll post the results after I tally the responses,

Tim Ehlers
tehlers@hess.com

[Gary B.]

Late '66 Corvettes...Please Read On

Tim,

Can you post a couple of photos showing the two possibilities?

Gary

[Ian S.]

Re: Owners of Late '66 Corvettes...Please Read On

Hi Tim,

Vin 26062
July 11 1966
2 flat hold down clamp
3 mounting holes
St Louis

[Jerry M.]

Re: Owners of Late '66 Corvettes...Please Read On

Hello Tim,

Vin 27,525
July 27, 1966
2 Flat Clamps ( 67 Style)
1 empty hole in middle of crossmember
St Louis

[Gary B.]

Brake line cross-over at front frame

Tim,

My '66 has 3 points of attachment, so in Venn diagram terms the union of the '66 and '67 attachments:

2 flat hold down clamps outboard
plus the springy clip at the center
3 mounting holes
Vin 26885
July 20 1966 build date
St Louis

[Tim E.]

Re: Late '66 Corvettes...Please Read On

Gary (and others):

First photo is a mid-June '66 with the flat-style brake line clamps. Look right above the control arm nutplate. There are two of these clamps used on the front crossmember:


Second photo shows the center spring style clamp the judges expect to see on all '66's. You can't see it from this photo, but this frame has all 3 holes:


Thanks again everyone...Tim