If its the same issue, I've found the engine likes to roll/tilt back when the tranny is off & the front of the car jacked. On a 2g, this leaves not enough room between the tranny & the subframe. What I now do is wedge a block of wood between the engine & the subframe, this prevents the engine from rolling & spaces it abit further from the subframe. With this done, I put the tranny on a floor jack & jack it straight up & slide it into place. Its an easy one person job with this method.