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4r70w swap with ford explore driveshaft
#1
I'm planing on doing a FMX to 4r70w swap in my 73 vert and I was suggested that I can used the drive shaft out of a 2WD 2000-2004 ford explorer. Just need to get a transition u-joint. Does that sound right?


Also,

anyone with the same setup know if I can still use long tube headers?

Thanks for any input!
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#2
I just pulled the trigger today on the parts I need for my 4r70w swap...Baumann Quick 1 controller--Hpf-2a harness--TPS-2kit--TransGo aode-hd2--I already have the fmx flexplate..& I had spoke to Kevin at Baumann Nice guy & pretty knowledgeable. I also have the Crites c-6 crossmember which should work..I also ordered the pa/performance aod shift linkage setup which will allow the use of the stock shifter setup..As far as the drive shaft I already have a custom aluminum one that was on the car when it had the c-6 (big c-6) 429 Looking at the lengths of the 4r70w & the big c-6 they are pretty close so I'm thinking a simple yoke change at the front may do it..If not then I will send it out & have it fitted. Your best bet is have everything installed..then take your measurements..this way you know what to look for. I'm going to use the hooker comps on my mine They show fits with an c-6 fmx the 4r70w is about the same foot print

LOVE OF BEAUTY IS TASTE..THE CREATION OF BEAUTY IS ART
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#3
Scott,
Where did you get the trany? What year mustang. Someone said that the later versions have improved TB but also converted to to electronic speedometer and that I need to stay away from those 2002:2004 maybe. Also, I was told to try and stay with the stock converter. What direction did you go with that as well?
I have a vert so I'm a little wooried about the crossover plat that the coupes don't have to deal with.
Thanks
Jim
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#4
sdstang;163966 Wrote:Scott,
Where did you get the trany? What year mustang. Someone said that the later versions have improved TB but also converted to to electronic speedometer and that I need to stay away from those 2002:2004 maybe. Also, I was told to try and stay with the stock converter. What direction did you go with that as well?
I have a vert so I'm a little wooried about the crossover plat that the coupes don't have to deal with.
Thanks
Jim
Jim,
took a bit of searching on craigslist but diligence paid off & I scored one from a totaled 2001 v6 mustang with the stock converter which should be fine from what I've researched..I checked the fit on the fmx flexplate fits perfect. I did speak to baumann today about the speedo setup since this tranny had a cover plate on it where the cable would go. I gave them the numbers off the tranny & they said I could go either way cable or electronic since all 4r70w's have the speed sensor built in..I like the idea of the electronic speedo & the quick1 controller is already setup for it. Heres some great info that should help you
http://www.tccoa.com/articles/tranny/tra...age2.shtml

LOVE OF BEAUTY IS TASTE..THE CREATION OF BEAUTY IS ART
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#5
Thanks Scott,
Please give updates as you progress.
-Jim
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#6
A 1995-01 at least explorer would use 1330 series joints. Most mustangs used a 1310 joint. That would be the reason for a conversion joint... at the rear end. Unless you swapped your yoke or swapped to an 8.8.

1973 Mach 1 Q code 351 4V, 9A paint, standard interior, 3.50 rear, C6 trans.
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#7
Totalled;164027 Wrote:A 1995-01 at least explorer would use 1330 series joints. Most mustangs used a 1310 joint. That would be the reason for a conversion joint... at the rear end. Unless you swapped your yoke or swapped to an 8.8.

The 8.8 out of the explorers are a nice swap. 3.73 gears, posi, and disc brakes all in one shot. Ive had mine in for a few years now with 0 troubles.

Kevin

1971 Mach 1
408C Stroker
C4 w/3,000 stall
8.8" Rear w/3.73's
Disc brakes all way around.

https://youtu.be/SoW1fhaFPzY  Burn Out Video. 

[Image: 044.jpg]
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#8
So what actually works here for a driveshaft and speedometer cable?

I've heard you can use a regular VSS sensor and simply remove the plastic cap on it that exposes a receptacle for the square cable end needed to drive a mechanical speedo. This guy with a '72 LTD swapped a 4R and did it:
Quote:I had to remove the plug at the end of the VSS and drill the hole out to fit the original mechanical speedo cable into it. The VSS has a square drive in it that drives the speedo cable. I used GPS to verify the speedometer was accurate (tried a few different gears to get there).

I haven't even looked into the driveshaft situation, but I was thinking of simply replacing the yoke at the 4R end of my existing shaft. If the Explorer stuff is a viable option or better fit, I'd love to hear about it.

1971 Mustang fastback: 10.3:1 C90E 408W hydroller - CDAN4 EEC-V w/EDIS8, girdled, lowered and caged
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#9
Mesozoic;195055 Wrote:So what actually works here for a driveshaft and speedometer cable?

I've heard you can use a regular VSS sensor and simply remove the plastic cap on it that exposes a receptacle for the square cable end needed to drive a mechanical speedo. This guy with a '72 LTD swapped a 4R and did it:
Quote:I had to remove the plug at the end of the VSS and drill the hole out to fit the original mechanical speedo cable into it. The VSS has a square drive in it that drives the speedo cable. I used GPS to verify the speedometer was accurate (tried a few different gears to get there).

I haven't even looked into the driveshaft situation, but I was thinking of simply replacing the yoke at the 4R end of my existing shaft. If the Explorer stuff is a viable option or better fit, I'd love to hear about it.
As I said if you get 2001 4r70w you should have both options using the vss with a electronic speedo or a mechanical..I removed the cap plug on mine & it goes straight through no need to drill..As far as driveshaft.. You need the 4r70w slip yoke at the front http://www.dennysdriveshaft.com/p229_dan...issio.html
Having diagnosed quite a few driveline vibration issues over the years it always seems to come down to a out of balance or tweaked driveshaft. To be frank why futz around with a used piece of junk that who knows how many times it was dropped or how it was stored. A junkie is going to bang you a 100.00 for a used one. I had a brand new one made by Dennys http://www.dennysdriveshaft.com/index.html for my conversion. ZERO DRIVELINE VIBRATION FLAWLESS. FIT PERFECT. This is one of things in my mind thats worth spending a few more bucks upfront for piece of mind zero aggravation factor.

LOVE OF BEAUTY IS TASTE..THE CREATION OF BEAUTY IS ART
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#10
Qcode351mach;195058 Wrote:
Mesozoic;195055 Wrote:So what actually works here for a driveshaft and speedometer cable?

I've heard you can use a regular VSS sensor and simply remove the plastic cap on it that exposes a receptacle for the square cable end needed to drive a mechanical speedo. This guy with a '72 LTD swapped a 4R and did it:
Quote:I had to remove the plug at the end of the VSS and drill the hole out to fit the original mechanical speedo cable into it. The VSS has a square drive in it that drives the speedo cable. I used GPS to verify the speedometer was accurate (tried a few different gears to get there).

I haven't even looked into the driveshaft situation, but I was thinking of simply replacing the yoke at the 4R end of my existing shaft. If the Explorer stuff is a viable option or better fit, I'd love to hear about it.
As I said if you get 2001 4r70w you should have both options using the vss with a electronic speedo or a mechanical..I removed the cap plug on mine & it goes straight through no need to drill..As far as driveshaft.. You need the 4r70w slip yoke at the front http://www.dennysdriveshaft.com/p229_dan...issio.html
Having diagnosed quite a few driveline vibration issues over the years it always seems to come down to a out of balance or tweaked driveshaft. To be frank why futz around with a used piece of junk that who knows how many times it was dropped or how it was stored. A junkie is going to bang you a 100.00 for a used one. I had a brand new one made by Dennys http://www.dennysdriveshaft.com/index.html for my conversion. ZERO DRIVELINE VIBRATION FLAWLESS. FIT PERFECT. This is one of things in my mind thats worth spending a few more bucks upfront for piece of mind zero aggravation factor.

I'll look into Denny's, although I know a local guy who built me a driveshaft for my old Bronco and it's also got zero driveline vibration. He uses Neapco joints so I can regrease things regularly and been quite happy with it. I might just have him weld me a new 4R yoke on my existing driveshaft, but that's further down the road.

I pulled the speedo cable and VSS sensor from a '93 5.0 Mustang with an AOD. The VSS fits the 4R perfectly, but I'm not sure if the instrument panel end of the Fox speedo cable will match the '71 Mustang's speedo.

1971 Mustang fastback: 10.3:1 C90E 408W hydroller - CDAN4 EEC-V w/EDIS8, girdled, lowered and caged
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