@halo2snipers You could also do a 4R75W swap(already standard on 06+ Crown Vics), which is the slightly stronger version of the 4R70W that comes on these cars, but a rebuilt version of either will be about the same in terms of durability so you if anything, you should just rebuild the 4R70W using the J-Mod and other things Jerry describes in his 4R70W rebuild manual
i have a 1997 thunderbird lx v6 with the 4r70w does anyone know where i can find the gaskets or the part number for them? also did you remove the bottom springs or leave them in and which would you reccomend?
Being a Sport, Mine came stock with 3.23's . Yes It did make a huge difference, Took a while to get use to the way it shifts now, but I have 71 k on it now and its still great.
I have a 99 crown Vic with the 3:55 gears. What does yours have in it? And did the jmod make a big diff? I will be doing mine soon what should I expect? Harder shifts? My car shift pretty good now but I'm hoping this just adds to it.
@halo2snipers Sorry m,an, For automatics this is about the best one, You can install a 5 speed swap. but the transmissions are kinda weak. So if you have alot of power, Better stick with an automatic.
congrats on the j-mod..im wantin to do it to mine. You will love the site you just joined..to bad i was banned..lol..pissed to many people off..however i can still view the site...theres alot of info on there about the vics..
@halo2snipers You could also do a 4R75W swap(already standard on 06+ Crown Vics), which is the slightly stronger version of the 4R70W that comes on these cars, but a rebuilt version of either will be about the same in terms of durability so you if anything, you should just rebuild the 4R70W using the J-Mod and other things Jerry describes in his 4R70W rebuild manual
j5689 3 months ago
i have a 1997 thunderbird lx v6 with the 4r70w does anyone know where i can find the gaskets or the part number for them? also did you remove the bottom springs or leave them in and which would you reccomend?
dboyinaz 5 months ago
Being a Sport, Mine came stock with 3.23's . Yes It did make a huge difference, Took a while to get use to the way it shifts now, but I have 71 k on it now and its still great.
CSXRockford 6 months ago
I have a 99 crown Vic with the 3:55 gears. What does yours have in it? And did the jmod make a big diff? I will be doing mine soon what should I expect? Harder shifts? My car shift pretty good now but I'm hoping this just adds to it.
FordVic99 6 months ago
@halo2snipers Sorry m,an, For automatics this is about the best one, You can install a 5 speed swap. but the transmissions are kinda weak. So if you have alot of power, Better stick with an automatic.
CSXRockford 1 year ago
I took em out.
CSXRockford 1 year ago
When you did the Jmod, did you take the accumulator springs out or leave them in?
eccentricorgan 1 year ago
I have an 04 crown vic and I want 2 do the jmod but I don't no thr steps 2 do it can u tell me
higherart89 1 year ago
how do you do the j mod i havent seen it done and i got a 95 crown vic
dasart713 2 years ago
What is a J mod for the transmission?
brandonya1990 2 years ago
congrats on the j-mod..im wantin to do it to mine. You will love the site you just joined..to bad i was banned..lol..pissed to many people off..however i can still view the site...theres alot of info on there about the vics..
richp812003 2 years ago
Rockford is banned from the ImpalaSSforum
ghtowagon 2 years ago 2
Get a chevy Rockford
ghtowagon 2 years ago
I got a GMC 1/2 ton and a 2002 ZR2
CSXRockford 2 years ago