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MaleWhore
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2,640 Posts
Discussion Starter #1
well, since my 107k mile 4r70w is about to go...what is the best way to go about a new tranny...money is a lil problem though since school starts in the fall again....i got priced at a $1200 rebuild...and that is too much...what do u guys think...asked a few people and they suggest to conver to a 98+ mustang 4r70w...if i decide to do this...what modifications need to be done to convert....also any other ideas are welcome....right now i wish i had enough $$ to get a change to a manual...
 

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MaleWhore
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2,640 Posts
Discussion Starter #3
thats not a bad deal...what mods need to be done to acomodate this tranny?
 

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High-Mileage 4.6L Thrasher
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3,232 Posts
smokymance said:
thats not a bad deal...what mods need to be done to acomodate this tranny?
Very simple.....Repin the harness,swap the manual lever,get a new flexplate for the Mustang convertor(if you dont already have the Mustang/Mark 8 convertor),and swap it out.
JL
 

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MaleWhore
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2,640 Posts
Discussion Starter #5
awsome...i already have a mark8 flexplate with a marauder TC....so that makes it easier...thanks guys....now whats recomended to do to the tranny before thrown in....like j mod or what not
 

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MaleWhore
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2,640 Posts
Discussion Starter #7
cool...thanks a lot guys...got all the info i need exept greanleafs website....
 

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Registered
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501 Posts
Here maybe with this thread you can get an idea ,

Johnny Langton said:
Most compainies don't offer a "kit" for performance 4R70W rebuild,but they do offer the clutch plates and steels in the performance varieties for the trans.You're gonna need the mechanial diode,and the reverse drum that mates to it if you really want that '94 trans to live,as well as a better valve body/main control.The '94 valve body is really bad,and is a potential area for failure later.
Here's what you're gonna want to get for a rebuild:
Overhaul kit(includes seal rings,gaskets,O-rings,lip seals,seals for the front pump/ext housing,and the manual lever)
Clutch plates
Steel plates
New 5.4L truck EPC solenoid
New short reverse servo
New light-load OD servo spring
New 2.7" OD servo
Brown upper 1-2 accummulator spring
New 1-2 accumulator piston
New 2-3 accumulator piston
New reverse band
New OD band(DO NOT get a Kevlar band)
I'm gettting a total of approx $350
by ordering the parts fro Bulkpart.
and another $100 for fluid and the few items that you have to get from Ford.
If you want a new Valve body,then add about $300 for that.
Another option is to find a a '98 GT trans and rebuild it..you save $$ because it already has the mech diode and the reverse drum(about $150) and you already have the internal harness ready for the higher pressure EPC solenoid.And the valve body is better on the '98 as well($300 saved)
JL
Thanks JL

Tom
 

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Fry Rice Specialist
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4,794 Posts
which part of michigan are you in? i might be able to offer some help if you like???
 

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MaleWhore
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2,640 Posts
Discussion Starter #11
detroit area....around 8 mile and I-94...help would always be appreciated...now just on the lookout for a 99+ 4r70w for a low price....
 

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Registered
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501 Posts
More info

The 5.4L truck tranny has all the parts, but needs the car main control(perferred) and needs a few clutches added to support high hp applications (says it supports up to 450hp) , this tranny would be great for a n/a ,sc,nos.


Just go and get a 99+ tranny out of a car , unless you really like truck trannies.


Tom
 

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364 Posts
So I'm taking it that your baby is still sputtering? Did you try anything else, like cleaning your injectors? Hopefully it is not your tranny because I know how much of a pain it is. If it is...we could always try and rebuild it by ourselves :D .

-Brian
 

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MaleWhore
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2,640 Posts
Discussion Starter #14
sputters and needs a new tranny...:(
 

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MaleWhore
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2,640 Posts
Discussion Starter #16
car barely keeps third gear and starts slamming gears when it gets warm....i got a new 99 4r70w with 30k for $450 which im throwing in....one more thing....i heard i might have to swap the speedo gear too....
 

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MaleWhore
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2,640 Posts
Discussion Starter #18
got it from greenleaf....and a buddy of mine next to PF&E is putting it on....and yes...gratiot cruise is coming up soon...so might have to go to that
 
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