Hello Folks,
Just read this post. I'm curious how this issue turned out (with the spring and all). I am in the process of building a 600HP small block (414 cid) for my '70 Challenger convertible. It has a 23 spline A-833 with 3.55 gears in the 8.75 rear end. I will be having someone check out the gear ratios in the tranny this week as this was installed by the previous owner nearly 6 years ago. All I've been told is that they decided on a lower first gear when they built the car. Anyway, getting back to the clutch. I found it interesting to read about clutch sizing and A-833 spline differences (I'm hoping my 23 spline will handle the 600HP OK). But most interesting is the discussion regarding the "over-center" spring. I will be running a McLeod Street Twin (diaphragm) clutch. Gene (at McLeod) said I should remove the over-center spring with this application. When I called McLeod today to confirm these instructions, the gentlemen I spoke with said the same thing, but also said to keep the pedal return spring installed. I told him it was an "E" body car (1970 Challenger), but I don't believe I know about this spring. I don't see any reference to it in any af my books including my service manual. The car was equipped with the old Keisler Hydraulic T/O kit from 6 years ago. So, I don't know what the previous owner did with all the springs and linkages when that was installed. I have decided to discard the hydraulic set-up (it's just too finicky) and go back to the stock Z-bar set-up. I was curious as to whether or not I needed to purchase an over-center spring (now I know I don't have to). I am in the process of ordering all the necessary parts for the stock set-up (going with Brewer's Performance for this; if any suggestions on someone better, please let me know). So, is there a 'pedal return spring' and if so, where does it go? Thanx
