Shift kit in a 4R70W, good or bad?

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3,668
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Phoenix, AZ
I was thinking of doing a Transgo shift kit in my Mark VIII and was wondering what everyone's thoughts were on this? I've heard they are good and others say they are bad on the 4R70W. I ask because it's either this or the Jmod, and the transgo is a much cheaper option(labor wise) 225.00 for Transgo and Parts vs. 570.00 for Jmod and parts. Wish I had the tools/knowledge to do it myself. Thanks.
 
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panthermike

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3,668
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Phoenix, AZ
Thanks for the input. I definately would prefer the Jmod but not sure why they want so much money for it(parts plus 4hrs. labor). Or does 4 hrs seem fair? I heard if you know what you're doing it doesn't take long.
 
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Location
Portland, TX
I put a Gregg Evans Factory Tech Valve body in my 4R70W (2000 Harley F150) the new valve body is made from 100% ford parts and is an easy swap. I wouldnt have done it any other way. Gregg Evans was a tranny engineer for ford and designed these valve bodies. I put it in when the truck had 45K miles on it, it now has 157K and shifts strong just like new.
 
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Kuwait
I had these URL's bookmarked a few years ago, because I planned on doing the J-Mod on my Grand Marquis. Might be of some help: Lincoln Mark VIII 1-5 http://www.cardomain.com/memberpage/496399/1 4R70Wnotes.pdf http://www.crownvic.net/tech/4R70Wnotes.pdf SHIFTY BUSINESS.htm http://www.tccoa.com/articles/tranny/shiftybusiness.html VALVE BODY MODIFICATION INSTRUCTIONS.htm http://www.tccoa.com/articles/tranny/transmission/shiftybusiness.shtml Why the cooling mod is important.htm http://www.mercurymarauder.net/forums/showthread.php?t=10004 TCCoA Transmission Article - Page 13.htm http://www.tccoa.com/articles/tranny/transmission/page13.shtml TCCoA Transmission Article - Page 14.htm http://www.tccoa.com/articles/tranny/transmission/page14.shtml accum.jpg http://www.tccoa.com/articles/tranny/shiftybusiness_files/accum.jpg drill spec jmod.jpg http://www.tccoa.com/articles/tranny/transmission/d97.jpg Holes in Trans Seperator plate.htm http://www.tccoa.com/articles/tranny/plugging.html
 

panthermike

Thread starter
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3,668
Location
Phoenix, AZ
Thanks for those links, all good sources of information. I'm not doing anything to the car right now. If I do, I might use a pre-done valve body, such as the one from Blue Oval Chips.
 
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