Alright now my question today (sorry i ask so many) is put into two seperate threads to save room on the forum (sort of)

First, for my 2003 Monte SS i got the parts/options list for it and for the transmission it says it has the 4T65e W/OD Enhanced. What in the world does it mean by enhanced? I have no idea so i figured i would come here and ask fellow owners.

My second question is about a transmission upgrade/swap. Alright so let me explain: in a couple years (depending on how long im in college) i plan on putting a supercharger w/ a tune and an exhaust system (headers and downpipe, i already have the cat and back) but my transmission is the plain 4T65e and i was planning on upgrading to the HD model of this transmission. Is it possible to do this swap without the supercharger or should i wait until i do the kit and just change them both? The reason being is because i need to replace my rear main seal so i was wondering if its possible to knock out 2 birds with 1 stone in this case and save the trouble and just do a top swap afterwards when im ready?

Thanks for the help in advanced again guys!

 

I'm assuming by enhanced, they mean its got OD or they just thought of a fancy way to say it lol no clue on that one lol but yes its possible to upgrade transmisson to HD without a supercharger. ZZP sells an upgrade kit I beleive

 

All you have to do is change the differential to make yours HD. The 4t65e-HD for supercharged cars has a lower gear ratio.

 

You can swap a HD diff into your existing trans you don't need a whole trans. All the HD trans is is a different diff and different gear ratio all other parts are the same.

To do the HD diff upgrade you need the diff, diff cover, passenger side axle.

I will be selling a HD diff upgrade very soon if your interested in it...

 

Im actually swapping the whole transmission out since mine would need to be rebuilt in order to handle the power without a possibility of failing. Thanks anyways!

 

In 2003 they changed some electronics, and also gave it a hardened 4th gear clutch.

Maybe they just say enhanced to discuss that stuff done to it?

 

Can I use a 02 Grand Prix 4T65e-hd trans in my 02 SS?

 

No, yours probably won't need to be rebuilt in order to handle the power. Read what was said, you just get a lower ratio diff.

This makes it a little easier on the trans hard parts, but it won't be a large difference if you're only doing a supercharger.

 

Yes. Youll need the d side cv axle too

 

Hm well iam still thinking about if i want to swap it or not. Im undecided