when i hit 9000 RPMs or higher in 2nd and shift to 3rd it sometimes grinds and when i hit anything over 7000 RPMs in 3rd and shifting to 4th it ALWAYS grinds and i am making sure i am stepping down on the clutch all the way, this never happend until i installed my RP short shifter. could i have installed it wrong? or do you think my clutch is going bad? i remember not putting any grease on the shifter before installing it could that even be the problem? need help guys

 

Sounds like it might be your synchros. I have the same problem when up/down shifting to 4th; 3rd & 5th are just starting to go as well.

 

I feel like I have to be extra sensitive with the syncros after installing the AFE/RP shifter. I really have to rev match well, too, or I get a lot of syncro noise. Although I have not heard anyone complain about this shifter, I have to wonder in the back of my mind if it is putting extra strain on the transmission??

 

thanks guys, someone was telling me it could be my clutch...he had a totally different car which was a mustang but he said when his clutch started to go his 5th and 4th gears started to grind and later on worked its way to all the gears grinding but i'll get it all check out thanks again

 

Could be clutch if it is way out of adjustment and it is not fully disengaging.
IF not the clutch, could be worn out or poorly lubricated syncros. I would try changing the trans fluid with new/better fluids first to see if this helps as many have had syncro issues due to poor/old fluids. I would recommend BG Syncroshift II as it really smoothed out and quieted down my trans. There are other good ones, but IMHO BG is the best.

 

I'm thinking it's the clutch too. The RP shifter is much stronger than the factory. I beat the crap out of it with really hard shifts and it actually seems to do better when I do that.

 

This sometimes happens to me....2nd to 3rd at 9k and I get locked out of 3rd gear...CLUTCH PEDAL DOWN TO FLOOR....any suggestions?