Tranny linkage adjustment

Well my car had a bench style shifter and I recently put in a pistol grip. But it grinded before I installed the pistol grip.

Yea it has oil in it but its probably low.

Now i put a drill bit thru the shifter to hold everything in neutral, once i do that do i still need to out each lever in neutral? I thought being in neutral...they were in neutral. I know its a stupid question to ask, but I dont know

First there are no stupid questions. I would first torque the 2 shifter to mounting plate bolts to 30 foot pounds. Next remove the shift rods from the shift arms at the transmission. Torque the shift arms to 18 foot pounds or 216 inch pounds. Now work the levers into first gear then second gear. You may have to turn the driveshaft. If they work well it should center. Now put your 1/4 inch pin in the shifter to lock all the shifter arms into neutral. Adjust the 1st and 2nd rod so it goes into the 1st and 2nd shift arm without moving the shifter arm. Repeat for 3rd and 4th rod. Then the reverse rod.

Then double check your clutch departure, gap between the clutch disc and flywheel or pressure plate, is about .06 of an inch.

I'd drain the fluid and replace with 90 wt gear oil. I think this is the best chance to solve your problem, but adjusting shift rods and clutch departure are worth knowing they are right.