I am glad you did not. hydro clutch is nice on the leg pumping. that 88 d-100 v-6 bell not only is hydro but has the duel 833/435 bolt pattern. I like hot rodding in the truck with the 4 speed and the new 255/60/15 tires. so much more fun with a 318 4 speed when it is not under geared. I buzz my teen just like you would buzz a 340 back in the day.

when running a teen in a heavy ride my rule of thumb has always been if a 340 has 3.91 gear a teen needs a 4.11 if a 340 has a 4.11 a teen needs a 4.56 even it out a bit IMHO.

what has work best for me so far is gear with a short tire = fast high reving teen. after all a 69 superbee 440 4 speed had a 14" polyglass tire 26" tall with a 4.11 gear and were torque monsters when I was 10 yrs old. same for 340 cuda/darts 4 speed cars small tire 3.91 or 4.10s 6500 rpm shifts.

then came the 5th ave with the 1500 rpm cruz rpm OD autos lock up TC 4 speed autos and 2.94- 2.76 gears 27" tires = power pig.

cant see using a 2.76 gear behind a SB now days myself but it does work good in a top fuel dragster clicking off 300 mph in a 1/4 mile run now days LOL!

OP should plan a mild SB with a 833 or 833OD 3.23 gear with a 26" tire which IMHO is a good all around set up for daily driving a truck