727 having a few issues
Wow, your thread got lost in a hurry.
As to the shudder;
When this happens, is the selector in Drive or in manual Low?
You know that brakes themselves will do this,right. Park the car on a decline and put the tranny in neutral, then slip the brakes to let the car roll downhill in a forward direction.See if you can duplicate the shudder.Front drums will do this more often than front discs.
The shudder happens in D or R when just barely starting to move. I will try it in manual low. The shudder isn't related to the brakes at all. I have front disc. I tried revving the engine and slowly creeping off the brakes and the shudder still happened at higher RPM, as long as the car is just barely starting to move. Trying to describe the feeling of the shudder here, but when it's cold and first driven it feels like the U joints and motor mounts are shot badly and it vibrates the car, in that sweet spot when just
BARELY starting to move. Later when it's warm this shudder is much less felt, it feels more like a hesitation when just barely starting to move. It is 100% related to power, not brakes, and it honestly feels like the transmission is slipping causing that shudder/hesitation, or maybe the torque converter. I'm not aware of symptoms for a torque converter going bad so I can't comment, only what I've read.
I will try manual low and get back to you.
As to the slip in that corner,
are you saying that the rpm went up, while the tranny stayed in whatever gear it was in, and it was not initiating a gearchange?
When I was driving around and the car was nice and warm I was on flat ground. The transmission was in 2nd gear. Suddenly it felt like the transmission slipped a few times. This slip did not occur during or near a gear change, the transmission was in 2nd gear and I wasn't going fast enough for it to shift to 3rd. I could have sworn earlier when I was driving the same thing happened, slipping/hesitation here and there for a second or so while driving.
The other very noticeable slip happened when I was going uphill. I was at a stop light, started driving up a hill, transmission in 1st because I am going uphill and not fast. Suddenly it makes a very noticeable slip for a second or so then keeps going. Again, this slip did not happen near or during a shift change.
As to the late shifting
Do you know if the tranny and the rear gear-ratio are a matched set? In other words is the governor stock and the rear ratio the same now as it was when the car was first built? What I'm suggesting is that the governor for say 2.76 gears is, or may not be, the same as the governor for 3.91s. A transplanted high number rear gear will fool the tranny into shifting early. But a transplanted low-number rear gear can cause the opposite, a late upshift.
Also, in a stock VB, the governor pressure is resisted by the line pressure plus the throttle valve pressure. If one or both of these latter two is messed up, then the governor can rule, or it can be over-ruled. It's a delicate balancing act, with even the tire diameters getting into the act.
Does your carb have the proper MOPAR specific throttle arm, with the correctly located KD pin?This is very important for proper TV pressure synchronization.If you don't know, send a pic.
The late shift isn't/wasn't a problem. I was simple saying that when the kickdown was adjusted all the way forward at WOT it was causing the transmission to shift late. From several threads I've read on here this can happen, start the kickdown adjustment with it all the way forward at WOT and back it off very very little until the desired shift points are achieved. I had to adjust mine so there's only about 1/4" of play from being all the way forward at WOT. So I don't think this is a problem, the problem is the random slipping/shudder/hesitation at cruise (in 1st and 2nd cruise at least, I haven't noticed it slip on the freeway in 3rd yet) and when it just barely starts moving.
I have the Lokar throttle and kickdown setup connected to an Edelbrock carb. I have it hooked up correctly and have used this setup before and it works great.
