Here's what you need for the 235 install: GM# 3714387 Stud, front mount 7-1/2" Overall Length w/3/8-24 threads both ends. The rest of the bushings, washers and nuts are all the same as what you already have.
These stands are taller than the V-8 birds leg stands that you have and will put thing back to the right place for you.
Here's a set being offered on ebay
GM# 3714387 Pair for a decent price. If you search the GM#, there are a few others being offered by other ebay sellers too.
Classic Parts says they carry
Original GM# 3714387 - Works on both 6cyl and V-8 trucks and the pictured part does look like the tall stand legs. Might have to be quick ordering from them as they say only 2 left in stock, but I would also confirm if they are the correct langth.
