on the 518 the loss of reverse could be a broken or burnt rear band. Or a cracked reverse servo.
How are the tuneups on each vehicle, gear ratios, tire sizes, just becuz the one is slower doesn't mean the trans is dragging/slipping. What does the rpm's tell you when it us under hard accell's? Is it reving hi going slow? Thereis a lot of variables in the question you are asking.
your 518 is a 727 with a OD unit on it. So I would look to other things causing it to be a dawg.
being on the eastern edge of the central time zone sucks...it gets dark WAY to early.
Originally Posted by jeepbrattt
An occasional jello or vasoline wrestling match isn't out of the question either.