Wheel hop in REVERSE?
I have read in different articles that the angles should be parallel for street and equally down for race. This is a street car. My 79 dodge warlock truck is 5 degree down at tranny and 5 degree up at rear which matches what i have read. So the mixed opinions is confusing.
This is not right understanding.
The factory set the trans angle where they engineered it to be. And they set the rear angle to where they engineered it to be. If you are running the factory ride heights front and rear, with the factory height tires, then the engineering will be right. But if you changed the rear springs to a different ride height, then the pinion angle MAY have to be changed to enjoy vibration-free cruising. But leave the front angle alone so long as it is over at least ONE degree, to ensure the needles don't dig troughs on the cross-pins..
But now, suddenly you talk about a Warlock which is a totally different animal, because the warlock axle is not located like an A-body.
The A-body factory spring is 55", and the front segment is 20". This offsets the axle 7.5 inches to the front. Then the spring pack is similarly offset to the front. Then that front section usually has two bandclamps on it. The net effect of all this is that the front section becomes in essence, just a trailing link, allowing the axle to move up and down with the undulating road.
The rear section becomes the spring, and together with the shock, becomes your suspension, absorbing the bumps and such.
Because of all this, in the forward direction, engine torque is less able to wrap the spring into an S and so with properly matched to the torque springs, wheel-hop never occurs. But, also because of this offset, wheel-hop in reverse becomes possible. The rear section is now 35" instead of 27.5, and there is way more compliance built into the back half,you know to make a nice cushy ride,and with the rear eye floating around on the shackles,that back section is dancing around all the time. It doesn't take much power to wrap it up.
However, I get the sense that you are just backing out of your parking stall, and then taking off in the forward direction briskly. With an A-body, this would not excite wheel-hop, but is a sign of something being wrong, as several members have already stated.
But if this is a Warlock, or any similar vintage D-series truck,sure it can happen, the rear springs are not engineered the same!
So what are we talking about in this FABO forum? is it an A-body, or is it a truck. Cuz the cures for each,are totally different.
