i am installing a new clutch, slave and master cylinder on my 2001 t/a
i bought a new master cylinder from gm, the new mc looks like it is already pre bleed and filled with fluid, my question is should i just put it on without bench bleeding or should i do the drill mod to it and then bench bleed the mc
i bought the new MC gm part# 12570277 thanks

 

You must be saying that the clutch line comes attached to the master? If so, your decision is dictated by whether you desire the drill mod. If so, yes you must remove it then you can bench bleed it again before installation.

 

yes the line is on it with the resv. filled with fluid ready to go,
i was just wanting to know if anyone thinks i should go ahead and do the drill mod or just put it on? My car has z06 cam slp exhaust lid and a few other misc things plus nitrous and i am installing a centerforce clutch should i go ahead a do the drill mod or does anyone think it will be ok like it is

 

I have never had any problem with my clutch with the stock restriction in place (47,000 miles). I've never missed shifts like some people do. I'm not even sure if these missed shifts should be attributed to the restriction.

However, I think I'm going to do the drill mod when I change my clutch out in the next month or two. I don't see any downside except the work involved, and the hassle of bleeding.

If you've never actually had a problem with your stock clutch line, then you probably won't with the new one, unless there is something about the centerforce clutch that might make a difference.

 

I would do the "Drill Mod", you sure wont hurt anything to do it. This is the time to do it. I would hate to see you put it all back together and then find a problem speed shifting because of the restriction.

My vote do it while you have it in your hand.

Have a good weekend,

Will Baty
Centerforce Clutches

 

do the drill mod, why not its already outta the car might as well not find out the hard way later that you do need to do it

 

 

It does come bench bled already when bought new from GM, mine did. If you do the drill mod, obviously you will need to bench bleed it again. I bought a power bleeder myself, no more bench bleeding for me, I should of bought this from the start, it was to easy.

 

I would do the drill mod since now would be a good time anyway...