The 4L80e install thread has some good info in it:
https://forums.maxperformanceinc.com...=4L80e+install
I also on another thread did a cost comparison between a 4L80e and a 200R4, and proved the 4L80e is less expensive. And the 4L80e is even less expensive now. And considering my experiences with the 200R4, I will say they don't last in a performance app. (Not even going to go into that conversation).
You can get VSS to a cable drive box less expensive than doing a tailshaft, and that's only if you refuse to change to an electronic speedo.
Not going to get into a gear vendor debate either, but if you like changing the fluid ever 5k miles, among other things, there is no comparison to a 4L80e.
As for 8.5s, to do one 'right' costs very close to a moser 12, and the moser 12 is lightyears ahead of an 8.5 AND any OE 12 housing. I did an 8.5 for the 442, and I regret it every time I think about or see the car.
If you're going to do something, anything, do it right the first time and you will never have to worry about it again. If you don't have the money to do it right, save until you do have the money. (It costs more to do it twice).
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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
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Theme Song:
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