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its possible that its not the motor mounts themselves that are bad. a number of things can cause short life or seemingly immediate failure of the motor mounts. such as a bad transmission mount and allowing ecessive torque to be applied to the motor mounts. think of anything that could cause poor allignment or positioning. weak or failing harmonic balancer, fluids leaking onto the mounts, possibly a mis-positioned chassis mount from the factory, or maybe somebody else molested it. a leak in the exaust even heating the rubber making it extreamly plyable and creating excessive streaching. I bought an 89 2wd astro once and pulled the tbi 4.3 v6 and dropped in a 305 v8 just by reversing the chassis mounts and buying new rubber mounts from advanced auto parts. probable would not have had to switch the mounts…but it set the motor back farther and allowed for extra clearance in the front. just my two cents I suppose.
Believe it or not I ordered this Astro brand new in October 1993 and have stayed on top of everything to do with its maintanence ever since.
Two years ago at 250,000 miles my daughter blew the engine and it was replaced with a Jasper of the same model.
Problem has been since the getgo and is worse now because you can only buy cheap Chinese mounts for $5.00 no matter what the brand. Tried some of the better suspension companies but they don’t make them for a 94 Astro.
I bought mine from advanced auto parts for 25.00 for pair fairly cheap, but I have not had a problem with them yet. maybe an aftermarket application made of polyurathane bushings would be in order? A lot of v8 parts are compatible with the v6’s of that era as the blocks are in a sense the same. same bolt patterns and such. not 100% familar, but i think the bore and stroke is close the that of a 305 cid gm as well. and aftermarket performance parts for a cheverolet v8 are plentiful.
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