just finished a long rebuild on and engine and trans i did not have a dip stick for the trans so i went to the zone picked up a 350 trans crome dipstick and tube and i have had no luck getting it to go into the trans itried with it out with a little trans fluid on the o ring and it tore it up i tried to put it in the car from the top with trans fluid on th o-ring and it still tore all up does any one have any ideas before i tose this thing in the road and drive over it with my truck oh in case if you are wondering i did take out the original rubber push i grommet from the facory syle tube i would like some help on this matter thanks

The problem with those chrome sticks is that they are the right diameter before they chrome them. Then the chrome plating adds enough thickness to make a tight fit.
Sanding with a strip of emory cloth might help, it'd be great if you had a spare trans on the floor to test fit it.
Also make sure it's going in straight.

This job is definetly a two person operation, get some help inserting it. One from above and one below, you could also try a smaller diameter O-ring if your still having trouble.

Good luck.

here is some help for you. dont ever buy anything from autozone!

Jason is correct.
The dipstick tube stamping is not correct. Most likely the O-ring groove is too small for the O-ring needed and the O-ring is also binding in the bore. You might get lucky by sanding the chrome off the portion that goes into the case, silicone the area around the O-ring groove (no O-ring) and install. Do not add any trans fluid until the silicone has hardened or you will get a severe leak.
Good luck.

is the tube going in at the right angle i just went threw it with a corvette went threw a few before i could get one to go in