with my car listed below. can i just get a set of 4.10s and throw them in? or do i need a converter and all that? also what exactly does a converter do? like does the 2500 stall give more perfomance then a 1500 stall? or is it just the RPM at which the clutch engage? i got no idea i dont do trannies. just want to make sure the "buddy" i get to put it in knows whats what and doesnt rip me off.

 

Yes, you can install the gears without a converter, as the gears are in your rear end, not the transmission. I dont know much about stalls, but depending on the application, most people that get stalls for there mustang get around a 2800-3200 stall. From what I gather, a stall just puts the car into the rpm range a lot faster. It basically doesnt do much until you get to the stall speed, but once it hits, BAM, there you go. Ive heard that when you drive a car with a higher stall, it tends to sound like you cant drive a clutch so Im guessing thats what its like. You just have to get used to them.

Here, read this, I did some reading on torque converters on www.howstuffworks.com and found this website.
http://www.protorque.com/techi/ti_faq.htm
This answered a ton of the questions you have asked. There ya go.

 

Pretty much whatll happen is when you floor the car itll jump up to your stall speed. For example Im running a 3500 stall, so when I launch the rpms jump right up to 3500. Its almost like launching a stick car. I didnt notice too much of a difference daily driving, you DO NOT have to get up to stall speed in order to start moving.

 

Oh I see, thanks for clearing that up for me. LOL forgive the automatic ignorant stick driver...

 

so thats sweet then. but ill have to upgrade from my cheap *** $100 tires before i can lauch at 2500 rpm with out spinning.
thanks for the website also MADMATT

 

If I remember right stall speed of a convertor is the rpm at which you would kill the engine if you were to hold the brake and rev it up. Someone correct me if Im wrong.