The other tranny cross member has the holes in different locations. Look at the hole patterns on the frame, they are not the same. I happen to be doing the Lightning swap right now. I believe your truck is a 4wd...correct?

Therefore you have torsion bars and a rear torsion bar mount also. Since the 4r100 tranny is longer than the 4r70w it moves the transfer case back further in the frame. It will now interfere with the torsion bar mount. Solution is to get a set of the longer torsion bars and move the torsion bar mounting bracket back 3 inches to the other set of holes that are already in the frame.

The crash sensors for the airbags in a 97 are mounted behind the front bumper. There are extra wires in the harness running the signal into the cab where the control module is. The newer trucks did away with the front sensors and use one Incorporated right into the module. It is located in the center under the heater ducting.
If you have the rear ABS there are also extra wires in the harness to connect to the control module which is in the top center of the dash on the 97.

You could say screw the bags and ABS.
And then there is the drive shafts.....
If I could go back in time and kick my own *** for starting my project, I would. My wife informs me my "$3000" project is creeping up on 6 grand. Could have offed the truck and bought a new one on A plan.

[IMG][/IMG]

 

Thanks!

Your input has been most helpful.

I have considered trading, but the truck has sentimental value to me.

Now for the torsion bars...did you cut that one to get it out or did it break?

What model do i look for to get the correct bars? or maybe i should ask..What donor did tou use to get yours? Lightning? Or a later 4wd? also, the two patterns in the frame for the xmember are the same on my truck, but i understand that the other xmember may be just different enough to screw things up.

Yes mine is 4wd.
I wish more women could undrstand the sanity that is saved by us working on our trucks

 

The V10 will bolt up to your 4R70W. And yes it will over time destroy that tranny but by using as much as possible of the existing drive train will allow you to more quickly swap the engine. Once the engine is up and running you can then measure, cut and re-adjust things. By far your biggest concern is engine management and wiring. The 6.8 PCM connector is different from the F-150. One good thing is the common circuits will not change. For example the 2000 6.8 has pin #1 as the COP #6 and so does the 2000 F-150 5.4. It is the same circuit number and the wires are of the same color. I also checked the knock sensor and it is on the same pin, #32. I dreadlooking at the bulkhead connectors becasue it would be a nightmare trying to pin match 3 connectors.

JMC

 

Yes, I cut the bars. They were giving me problems and since new ones were going in their place, I torched them. I will dig up the part#s for new bars. I bought new bars which are actually for the L250 LD.

got to run but will post after work.

JMC, I also will throw up a pic of my oil filter relocation. Not behind the bumper anymore.

 

ok. now...if i use the 4r70w to start, can i just get the ecm programmed to work the proper shift points,etc.?

 

You will still need to get the 6.8 PCM and match the pins to the proper circuits. Don't forget that the 6.8 has at least four more circuits. Cylinder #9 & 10 Injector and Cylinder #9 & 10 COP. Using the PCM harness form the 6.8 will add these required circuits but you will need to rewire for the 4R70W tranny and any circuit that connects to the Cab Harness.

JMC

 

The engine comes with the pcm and harness.

But...i'll still need to program shift points, right?

This is getting to be very informative. thanks again for everyones help!

 

What year is the V10 engine and PCM?

JMC

 

The engine and pcm is from a 99 f250sd

I picked up my pinouts for the pcms today from ford and the one main difference i see is the digital transmission range sensor. my 97(built 12-95) f150 does not have this.

 

Right Side = F75Z5B326-KB, left Side = F75Z5B327-KB. These are the numbers for the longer torsion bars. They are for the 7700 F-150. Spring code 7,I believe. Can't say how they ride since my truck is not running yet. but they are definitely bigger in diameter. As soon as Mr. Troyer finishes my xcal 2 I should be ready to light her up.

If you go with the 4r100 I can dig up the number for the tranny cross member.

 

JMC,check out my remote. No rocks here!

 

what is a 7700?

 

It is an F-150 with a GVWR (Grose Vhehicle Weight Rating) of 7700lbs. It used to be called an F250 Light Duty.

JMC

 

Ah...the wonderful 7 lug wheels...

So will the v10 ecm be able to work with my 4r70?

 

With a bit of creative splicing the V10 PCM can control your 4R70W.

JMC