th400

Hi all, looking at fitting a 4l80 box to my ls1 vx commodore, the 4l60 only only lasted 700k's after the motor was stroked will eventually end up with a harrop 2300 or 2650 so definitely either need the 4l80 or th400 and either way it will be manualisd. question is what else will I need other...

I’m trying to fit a th400 gearbox into my 2006 VE Holden senator signature but because of the park/neutral safety switch the car won’t run. I’ve been told I have to bypass the switch to get the car going. Does anyone know how to do this? Or would anyone have a PCM Wiring diagram? Thanks

Hi guys, I'm currently in the process of building a low compression 427ci for my VZ Clubsport and wanted a few tips on turbo set up. I'm not chasing 1200hp, but would like to see 600-700 through a TH400. I recently had a look at a kit that used 1-1/2" steam pipe headers with 4-1 merger and...

Hi, my car Lumina 2002 SS I want to change my 4l60e to th350 or th400 ... what is the best choice? I driver my car daily go to my collage ... this is the parts on my car : LS1 5.7 Stock intake LS6 AFR Mongoose 205cc FULLY CNC 66cc Chambers COMPLETE|G5X3-114|Stainless Works 1 3/4 Off...