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Old 02-21-2016, 09:43 PM   #17
johnscab
Registered User
 
Join Date: Nov 2012
Location: San Diego, CA
Posts: 91
Re: '72 C20 350/SM465 - Pedal push rod lever adjustment

So I have had some time to look into the issues and I think I may have found the problem.

1. THe lever position pointing straight back appears to be the right position.

2. I confirmed that the upper clutch rod that I have is 19 1/2" like the other one that was posted in this feed by 1972k5blazer.

3. I was reading two other threads:
http://67-72chevytrucks.com/vboard/s...d.php?t=667853
http://67-72chevytrucks.com/vboard/s...d.php?t=627068

Basically, there is a longer lower rod. Based on some information I found, the longer rod is for teh 6 cylinder applications or possibly 4x4, which I don't quite understand why, but based on the different positions of the engines, the variations of trannys, poswer vs manual everything, I have decided that I just don't care at this point.

4. I measured my lower rod and it was total length of 10 1/4"

Next:

I decided to extend my lower rod, because I just wasn't disengaging the clutch until the end of the throw of my pedal... based on my measurements, I needed about 2 more inches, based on the information in one of those feeds, he said the other rod was about 4" longer. So i decided to add 3" so that I had ample adjustment.

This ultimately ended up being too long. but i was able to get the desired action from whole system. I will probably remove an inch from the lower rod because I think it may interfere with the exhaust, but we will see.

So my next questions are:

1. does anyone have a 4x4 or stick cylinder lower rod that they can confimr the measurement?

2. Which position on the clutch fork should the rod be connected to? The outer hole seems to have better geometry, but the inner hole is where the rod was attached when I got the truck.

Thanks!!

John
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