Re: t case
Get a 2500/3500 floor shift. It'll be a np271. You are never actually going to break a 271, it'll have the right speedo output (if it isn't on the rear diff), and it'll bolt to the diff.
When going 6.0, don't shy away from the 6 speed 07+ trucks. The 6l90 is a very "standalone" transmission, with the TCM actually located INSIDE the valve body. That makes it simple to swap in and if you keep the factory harness, it'll work.
Should be noted that if you don't go with the factory 271, the 6l90 shares the same 32 spline output as the 4l80, and the same 6 bolt round stud pattern.
The l96 6.0 (07+ I believe) is rated at 360hp. An LQ9 is rated lower than that.
By the time you get a set of headers on it and tune it, you'll be running 385hp. Maybe more. A stock LS3 does 430.
And you will very likely need headers, and will DEFINITELY need a tune to first and foremost get rid of the vehicle anti theft system which will have a fit if you don't use the factory steering column.
One thing to remember is that when you tune these things, you can essentially tell the engine computer and transmission computer what to ignore,and what to listen to.
You can make the engine ignore all input from the transmission control module, and bolt up a manual transmission if you like.
You can run a manual valve body and tell the TCM to ignore the information from the ecu.
It's all possible.
I saw a Ford 8.8 ifs mentioned as well. Just a note on those.
An 8.8 is significantly stronger than a D44, despite being the same size of ring. The hypoid offset in the pumpkin on an 8.8 is huge, which makes for a large pinion head, no carrier breaks, and a huge selection of gearing options.
Get a 2500/3500 floor shift. It'll be a np271. You are never actually going to break a 271, it'll have the right speedo output (if it isn't on the rear diff), and it'll bolt to the diff.
When going 6.0, don't shy away from the 6 speed 07+ trucks. The 6l90 is a very "standalone" transmission, with the TCM actually located INSIDE the valve body. That makes it simple to swap in and if you keep the factory harness, it'll work.
Should be noted that if you don't go with the factory 271, the 6l90 shares the same 32 spline output as the 4l80, and the same 6 bolt round stud pattern.
The l96 6.0 (07+ I believe) is rated at 360hp. An LQ9 is rated lower than that.
By the time you get a set of headers on it and tune it, you'll be running 385hp. Maybe more. A stock LS3 does 430.
And you will very likely need headers, and will DEFINITELY need a tune to first and foremost get rid of the vehicle anti theft system which will have a fit if you don't use the factory steering column.
One thing to remember is that when you tune these things, you can essentially tell the engine computer and transmission computer what to ignore,and what to listen to.
You can make the engine ignore all input from the transmission control module, and bolt up a manual transmission if you like.
You can run a manual valve body and tell the TCM to ignore the information from the ecu.
It's all possible.
I saw a Ford 8.8 ifs mentioned as well. Just a note on those.
An 8.8 is significantly stronger than a D44, despite being the same size of ring. The hypoid offset in the pumpkin on an 8.8 is huge, which makes for a large pinion head, no carrier breaks, and a huge selection of gearing options.
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