Your're lucky it's an L98 and not the next year LT1 with opti spark. Water pump leaks usually means $500 opti spark is next. If all else fails, i read you can take off the inner fender linners and reach up to release the hood on each side. I never tried this, but I did have the inner linners off to clean them. I just bought a 93 and the prior owner had a receipt from a dealer for $790. $1.90 for a water pump gasket, $ 10 for anti freeze, $500 for the distributor ( opti ) and the rest labor. The tool works, however with the hood closed it may take some time to hit the latch. The tool comes with instructions to test it first with the hood up to gain experience. :L Good luck