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#510
by
Bowtie7
on 27 Jun, 2013 21:30
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Does anyone have any "good" measurements on total driveshaft length relative to their previous setup with a stock NA diff? I am going to buy the kit soon, and would like to have a driveshaft on hand so i can do the swap in a single day (instead of test fitment/measure, then have a shaft made).
The answer to your question is "it depends". What engine mount kit are you using? What front yoke are you planning on using?
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#511
by
mxman
on 28 Jun, 2013 15:18
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Wow, the bracket really fits on the 8.8 well, I might try one of those aftermarket covers so i can get some protection of the caps...
I raised it up into the car... pretty exciting.
I got a 2002 explorer diff and got a double flanged shaft with the slip yoke...cool oem part.. guess it's full custom for me!
Any recommendations of rpm i should get it balanced to? i do'nt know how fast i'll drive the car but you never know... a guy gets stupid when he is on a straight stretch of road sometimes !
![Wink ;)](https://norotors.com/Smileys/classic/gr_wink.gif)
COUGH, er...track! TRACK!
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#512
by
frijolee
on 01 Jul, 2013 14:17
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I think most driveshaft shops have standards they balance things too, but if you have to specify a number I'd just balance it to whatever rpm your gear ratios and tires works out to at your predicted top speed plus a bit for margin (20 mph?)
Balanced is balanced and should be irrespective of RPM but we all know that these things have tolerances and tiny imperfections become a great deal more noticable when you're up at top speed. If your driveshaft shop only knows passenger cars and rock crawlers you might need a different shop.
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#513
by
largeorangefont
on 02 Jul, 2013 10:56
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A tip on balancing - Ask them to use low profile weights on the driveshaft. My weights come very close to the subframe, but the weights are pretty thick.
You can see the weight here at the 8 oclock position.
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#514
by
frijolee
on 02 Jul, 2013 15:45
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Hey Ash,
Is that a 3 or 3.5" diameter driveshaft in the above picture?
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#515
by
largeorangefont
on 03 Jul, 2013 19:22
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Good point Joel. Mine is a 3.5 inch, so this will not be an issue for the guys running 3 inch shafts.
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#516
by
mxman
on 09 Jul, 2013 13:23
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I just talked to Tad at driveshaft shop, he said they offer a stub axle conversion for the explorer, or cobra diff that allows you to run the pro level axles..if this is the case, this is F'ng awesome news. $2100 or something...
I am going to try to compile the specs on my setup after finishing it.
remember everybody, at least with my MMR mounts the diff can/will move on the spindles, i believe my diff was a bit further back on the holes and when i pried it all the way forward my mount bolt no longer fits through... so keep this in mind, before you weld get the diff fore and aft where you want it!
Also, Just called moser, the Py088 pinion yoke (w/ straps) that ricardo is using is 3 7/8" on the long side, so, it shoudl be more than enough to accomodate 1350 ujoints after some cutting. The stock cobra/exploder pinion flange is around 5 3/16th" in diameter... should be a good upgrade apparently companion flanges are not good for 1000 hp applications(not that most of us care.)
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#517
by
wes kiser
on 13 Jul, 2013 22:05
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Does anyone have any "good" measurements on total driveshaft length relative to their previous setup with a stock NA diff? I am going to buy the kit soon, and would like to have a driveshaft on hand so i can do the swap in a single day (instead of test fitment/measure, then have a shaft made).
The answer to your question is "it depends". What engine mount kit are you using? What front yoke are you planning on using?
Perhaps I was not clear in my question. Where will the pinion flange be of the explorer differential, relative to the previous location of a stock NA pinion flange? This, plus my existing driveshaft would tell me what I need to know to have my new driveshaft made. I would be willing to bet I am the only person on this forum running my goofy, non sensical engine setup (2.3 ford turbo, t5 transmission). It has been running reliably for 2 years, but as soon as slicks went on stub shaft went boom.
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#518
by
mxman
on 25 Jul, 2013 16:00
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it depends, if you want to run a 1350 non companion flange setup you'll need the py088 1350 yoke from moser... if you run 1310 or 1330 you'll probably be fine but... the big pattern 1350 flange that comes on the exploder is 5 1/64? and the moser is like 3 7/8" wide... it's a lot roomier!
![Wink ;)](https://norotors.com/Smileys/classic/gr_wink.gif)
$180 or something, dirty cheap!
![Smiley :)](https://norotors.com/Smileys/classic/gr_stretch.gif)
I seriously don't know how anybody could just use somebody elses driveshaft lengths unless every car was the same ,every kit was teh same etc... just get the kit mount it and then measure ! it's the only way really..
BTW Joel
http://www.jegs.com/i/Inland-Empire/537/SY-727-1350Q/10002/-1 This yoke should work for all the viperized transmissions, there is another one for $26x from anothe mark williams.
Inland empire spins the shafts to 3500 rpm and i'm getting a 3" dom steel shaft made by them and they're including the yoke for me for around $580 or something.
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#519
by
SEDUCE
on 01 Aug, 2013 08:25
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Hey guys, i am about to do the swap on my FC with a Cobra 8.8" but with a Tbird cover and i want to install a full spool. Can anyone tell me what brand or who does one ?
I will use the DSS pro level shafts so i can get the splines done to suit what diff i use.
Can anyone help me out here?
Thanks
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#520
by
theantirotor
on 01 Aug, 2013 20:00
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So, you are about to do a swap that has almost nothing to do with the purpose of this thread....
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#521
by
largeorangefont
on 01 Aug, 2013 23:11
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Hey guys, i am about to do the swap on my FC with a Cobra 8.8" but with a Tbird cover and i want to install a full spool. Can anyone tell me what brand or who does one ?
I will use the DSS pro level shafts so i can get the splines done to suit what diff i use.
Can anyone help me out here?
Thanks
Buy a mini spool or buy a full spool and have it machined for the halfshaft circlips
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#522
by
mxman
on 02 Aug, 2013 12:50
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so, i ordered a 3.5" 1350 yoked aluminum shaft from inland empire (in ontario CA) i told him you guys potentially could send him some business being you're nearby...
anyways, the moser py088 pinion yoke accepts 1350s and is 3 7/8 across the wide way... the big pattern expolder is 5 1/64 IIRC
the 3.5" shaft should fit with some chopping... I took some paper and rolled it up in a 3.5" tube and checked it over..
Inland Empire balanced the driveshaft to a critical speed well over 10k (10k registers only at 48 inches, this 35 7/16? shaft should be good for 14k or something retarded) their balancing machine is good for 3500 rpm no weights were needed he just machined the yokes down a bit and rebalanced it
inland said that my driveshaft is just over 4 inches measured diagonally across the yoke
as far as the front yoke i'm a viper setup, inland manufactures 2 piece yokes and has a viper yoke and also a t56 2 piece yoke...
![Smiley :)](https://norotors.com/Smileys/classic/gr_stretch.gif)
Oh, and... I have called a few manufacturers about their diff covers with bolt girdles for the bearing caps... this one seems to be the thinnest and may fit quite easily..
http://www.summitracing.com/parts/gta-40-2013-1-alit's .56" thick aka 9/16ths i might grab one and check it out
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#523
by
largeorangefont
on 02 Aug, 2013 13:22
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You will need to get a diff cover that does not have webbing on the flange or at least minimal webbing. The clearancing needed for that cover cover may compromise the mount but I would check with Joel to get his thoughts.
See the diff mount on the Explorer cover below.
This TA cover might make your life easier.
http://www.amazon.com/dp/B003T1PO0S
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#524
by
mxman
on 16 Aug, 2013 11:48
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TA makes 50-100% of all of the covers, i got hte ford one which is the same as this one... if it doesn't work perfectly i'll prolly just sell er...