Back to the build - yesterday morning, I made the decision to rip out the Lokar cable and put the factory kickdown back in. I didn't like the amount of slack the Lokar system required, the way it barely cleared over one of the trans cooler lines, nor did I have any idea what ratio the 904's kickdown arm is.
The Lokar cable pulls a 1:1 ratio, but how should I know if the lever at the transmission was doing the same? After reading enough about fellows who had to re-drill the arm to get the proper actuation (see the photo below) I decided Ma Mopar had it right with their Rube Goldberg machine.
The next two photos are from the following Hot Rod Magazine article @
http://www.hotrod.com/articles/the-lowdown-on-stock-torqueflite-kick-down-linkage/
And even though I was up against five million variants of kickdowns, I'm pretty certain the 340-style kickdown is essentially identical to the 318's, with only the upper arm differing. Seems to match up with the 340 linkage in the photo below. Then again, I could be wrong.
And so I refurbished the linkage over the week and installed it on Saturday. Seems to work good, though the rear arm adjustment is really maxing out. But now that I look at the photo of all the linkages above, I think I cut and threaded the upper arm too short. This thing started life with a fixed slot for a Thermoquad, not a Carter, so it had a fixed slot. For better or worse, I cut it, threaded it, and put the slotted adjuster on it from the 318 linkage.
I might have made the mistake of matching up the overall length based on the position of the 318's 2-barrel arm on the bellcrank. In the worst of cases, I can always cut this one and the 318 linkage and weld them together to lengthen them. I won't do that until someone can get me the overall length of an original, unmodified 340 linkage arm though:
And in a massive victory of nothing that special to begin with, I took it that night to the local car show in Doral. This is the
first time I've made a fully successful A-to-B trip with the car. The one run to Advance Auto when it was running like poop doesn't count in my book.
That said, the show was half rained-out to begin with when I got there. Only the Corvettes were left. And within 15 minutes, we were greeted with more rain and wind than we received with Hurricane Matthew. Did I mention that I still haven't shelled out for the $450 in door weatherstripping that this car still needs?
1968 Satellite, 1968 Barracuda by
cudak888, on Flickr
Believe it or not, the weatherstripping wasn't really an issue. I know the bottom edge of the rear window must leak, given the way water pools in the trunklid pivot supports in the trunk, but I returned to the car to find the
top center of the window leaking onto the rear seat. And after a brief moment of surprise, I realized this confirmed what I believed all along: The rear window was resealed at one time, and they botched it up by omitting the rubber spacers at the bottom. The window slid down in its recess when the adhesive was curing, and the rest is history.
Perhaps that's why I wound up with this particular car - it was screaming for someone who would actually fix it
correctly for a change.
Oh, and on one last note - I tried re-installing the starter splash shield (the steel one at the left rear of the K-frame, not the plastic ones up front) when I was buttoning up the kickdown. It will
not fit anymore due to the longer idler arm, but the slot can be enlarged to suit. I'm not sure if a E-body/Challenger T/A splash shield would bolt in - one eBay seller claims the E-body splash shield also fits 1971/72 B-bodies. Can anyone here confirm if the framerail shape is the same for the '68-70s, before I spend any more money experimenting?
EDIT: The cheapest E-body splash shield on eBay is $75 bucks. $75 for a 40-year-old piece of ABS plastic? I'll cut up the original steel one, thank you!
-Kurt