03 MM 4R70W length
- Thread starter VA-Mach1
- Start date
fastblackmerc
Everything Marauder, LEDs & HI
I'd suggest getting under the Mach1 and taking proper measurements. The driveshaft shop should tell you how to do it.
http://www.iedls.com/Driveshafts/Measuring-Driveshafts.asp
Yes. I fully understand and have read that many times. The point was to get a factory measurement of what that length is supposed to be. The Mustang is supposed to be 31-3/16. Does anyone know what the 03 Marauder is supposed to be? I will still actually measure my current trans along with the MM trans but I can only do it with a tape measure laying under the car. That is not what I would call a great measurement. It might look like a inch, but actually be a inch and 9/32 or something. That is why I am asking. So I can use the measurement I take compared to what the factory measurement claims to be.
Because it's what I have at the great price I got it for that makes shortening the driveshaft more than worth it. If you have a super low mileage Mach trans and willing to pay shipping I will get this MM trans boxed up today and trade you lol.
I understand where you are coming from. Shortening a driveshaft basically 1 inch is far from what I would call cobbled up. I also have to change the gear selector lever coming out of the trans. Are you going to call that rigged? If I could **** money I would buy a auto Mach with like 2 miles on it but this is what I have to work with. Im also making the trans full manual so I can drag race the hellout it and bang gears until the MM trans shoots fluid down the track. I just wanted a measurement. Nevermind. I'll take care of it. Thread closed.
RubberCtyRauder
Weißbirke Plünderer
You act like we should know the measurement . It's not a swap been done here. It's ok to ask though, as you just never know if someone happens to have it. People gave their logical help with the limited info you gave initially. It prolly won't take long to spew trans fluid shifting manually anyway at high rpms. Good luck to the guy running next in your lane
BUCKWHEAT
Very Senior Member
Maybe I'm old and stupid, but
I pay a lot to a good tuner to get the 4R70W automatic to shift at the right RPM for my MM at the drags. The theory is that the trans will live longer and it's computer will shift quicker and more reliably than I possibly could shift it manually. So far that theory has me in the high 11's. Keep us informed as to the times you run when your project is finished.
I pay a lot to a good tuner to get the 4R70W automatic to shift at the right RPM for my MM at the drags. The theory is that the trans will live longer and it's computer will shift quicker and more reliably than I possibly could shift it manually. So far that theory has me in the high 11's. Keep us informed as to the times you run when your project is finished.
You bring reason to the discussion. Thank you. I apologize for getting off track. I did not mean to expect that anyone would know the answer. I do think that if you don't, you should not be judgemental to the project. The range of answers and highness to what I thought was a easy question. (what is the Length?) turned out to be not so. I wish I could have everything perfect but this is what I have to use and don't consider it cobbled.
Cobbled to me is cutting out the factory plug and installing a radio with crimp connectors. Or better yet, twisting the wires together and using electronical tape. So I got a little bent when shortening a driveshaft at a machine shop was compared to cobbled.
I appreciate and admire your ability and attention to detail.
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larryo340
Now Marauderless :(
Agreed...no chance of an oh ***** moment, unless you measure wrong.
FordNut
Contributing Member
Sorry, but if you're using a machine shop instead of a real driveline shop with proper balancing equipment it really is cobbled up. Several of the Marauders have experienced tailshaft failures from out-of-balance driveshafts. Drag racing a Mach with smaller tire diameter will probably result in even higher driveshaft speed than a Marauder.
Also, unless you have a full manual valve body and just try to shift manually with the factory valve body it won't last very long. Then you get to do all this work again. Personally, I try to get it right the first time because I hate re-doing the same work.
Good luck with the project.
As for length, I'm not sure about the Mach1 but there are 2 different lengths on the full size cars. The CVPI and MM have the longer one, the regular CV and GM has a shorter one.