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Old 01-26-2010, 01:05 AM   #1 (permalink)
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Front 9 inch questions. Flipping third?

I'm thinking of doing a rear engine buggy with conventional rotation Motor/Trans/Tcase with 9 inches front and rear and flipping the stock third members to achieve standard rotation and say free hi-9's. I will be building the housings and I'm trying to do all this on the cheap.

I kno there is an oiling issue associated with this and I swear I've seen a thread to this nature before but have searched and can't find it for the life of me. I have seen some ideas with the say mog 9 stuff but very little.

For the front my plan was to swap outers from a 60. Is there a cheap aftermarket solution? I love the spidertrax stuff but cant afford it. Can stock kingpin D60 knuckles steer 50 degs? Then go with some Branik shafts maybe?

Also this is probably a stupid question, but a 35 spline 9 inch carrier will work with say most stock and aftermarket 35 spline shafts correct? Or is the degree on the splines different? I would like to run stock rear 60 for 70 shafts at least.

By using say something like this spool?
http://completeoffroad.com/i-123604-...yp-fs9-35.html


Looking for some insight and any related info would be great!
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Old 01-26-2010, 04:37 AM   #2 (permalink)
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Been running a flipped 9 with 44 outters for 5 years, works great but if I had to do again it would use 60 outters. The biggest thing I found out quick was I had to use a good case. I tryed stock, busted them, I tryed nodular, busted them. Then I went to strange 3.25 case and have not had any more problems.
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Old 01-26-2010, 05:00 AM   #3 (permalink)
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Been running a flipped 9 with 44 outters for 5 years, works great but if I had to do again it would use 60 outters. The biggest thing I found out quick was I had to use a good case. I tryed stock, busted them, I tryed nodular, busted them. Then I went to strange 3.25 case and have not had any more problems.
sounds like you need this diff gaurd http://bluetorchfab.com/store/produc...roducts_id=305
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Old 01-26-2010, 05:05 AM   #4 (permalink)
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Originally Posted by Ford_KTM View Post
I'm thinking of doing a rear engine buggy with conventional rotation Motor/Trans/Tcase with 9 inches front and rear and flipping the stock third members to achieve standard rotation and say free hi-9's. I will be building the housings and I'm trying to do all this on the cheap.

I kno there is an oiling issue associated with this and I swear I've seen a thread to this nature before but have searched and can't find it for the life of me. I have seen some ideas with the say mog 9 stuff but very little.

For the front my plan was to swap outers from a 60. Is there a cheap aftermarket solution? I love the spidertrax stuff but cant afford it. Can stock kingpin D60 knuckles steer 50 degs? Then go with some Branik shafts maybe?

Also this is probably a stupid question, but a 35 spline 9 inch carrier will work with say most stock and aftermarket 35 spline shafts correct? Or is the degree on the splines different? I would like to run stock rear 60 for 70 shafts at least.

By using say something like this spool?
http://completeoffroad.com/i-123604-...yp-fs9-35.html


Looking for some insight and any related info would be great!
problem with wanting to build one cheaply and using d60 knuckles is they are not cheap to get. 60's cost 1000 bucks most of the time unless you find a good deal or all ready have one. and they got nothin close to 50* of turning. so you might as well go to spidertrax and get a roller kit for ruffly $1200 then you just need brakes axles and a 3rd pod. and have a crap ton of steering.

i really want to build a 9" front as well. and i started a thread a while back trying to get some info on building them. and it just turned into a fight on how much a d60 should cost. so good luck with this thread.
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Old 01-26-2010, 05:11 AM   #5 (permalink)
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problem with wanting to build one cheaply and using d60 knuckles is they are not cheap to get.
TTB outers?
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Old 01-26-2010, 07:16 AM   #6 (permalink)
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D50 outers
newer BJ d60 outers
AAM outers????
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Old 01-26-2010, 09:21 AM   #7 (permalink)
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35 spline 60 shafts are 30 degree pressure angle; 35 spline 9" stuff is normally 30 degree pressure angle. The splines will fit unless you're working with "Mark Williams 35 spline 9" special spline" stuff (45 degree pressure angle).

The seal journals are in the wrong places to put 35 spline 60 shafts into a 9" carrier; they'll bottom into the snouts before you get the shafts fully seated. If you're trying to use off-the-shelf 60 shafts, you'll have to have them remachined; if you're having custom shafts made, you need to tell whoever's making them, which side is which, where you need seal surface, etc.

On the cheap, Randy's has a 35 spline 9" spool that fits stock small bore cases. A lot of guys break stock cases, though, so beware of that. An aftermarket 3.25 bore case will be a lot stronger, but if you've gotta save the cash, that's an option.

Stock 60 knuckles will not do 50 degrees. You can get close with a lot of work; I've done 42 with Reid knuckles, but if you're set on 50 degree steering on the cheap, Spidertrax is the way to go. That brings up another note, though--if you're really after cheap, limiting the steering down to something reasonable will save you a lot of cash and a lot of time, and unless you've laid everything out already, expecting to fit 50 degree steering is a pretty tall order.
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Old 01-27-2010, 11:42 PM   #8 (permalink)
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good info thanks guys. looks like there really is no "cheap" way to do it unless you run into some great deals on good parts...
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Old 01-28-2010, 05:12 AM   #9 (permalink)
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sounds like you need this diff gaurd http://bluetorchfab.com/store/produc...roducts_id=305
Gaurding the case was not the problem, It was the stock casees would not hold up to the side pressure on the ring gear and would split the case between the bearings.
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Old 01-30-2010, 04:30 PM   #10 (permalink)
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Gaurding the case was not the problem, It was the stock casees would not hold up to the side pressure on the ring gear and would split the case between the bearings.
Ok so there has to be a way to strengthen these housings. There has been a lot of people welding supports to cast parts to make them stronger. for example mog box horseshoe braces. Could some homebrew pipe remedy be the solution? I've personally never seen one break but I have heard its an issue. I will be building a ideally 2800# buggy with 300 horse. Which will be mounted to fairly light 42 inch irok rubber and aluminum wheels. Maybe just 40's tho...

Would something like this help??

http://www.speedwaymotors.com/9-Inch...ign=GoogleBase

Also right now cheaper is a higher priority than steering angle for sure.

So what is the best way to do the outers and shafts?

Dana 50 TTB is only 30 spline tho right???

Or should I just come to the conclusion that there truly is no cheap way to build a front ford 9 inch???
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Old 01-30-2010, 06:49 PM   #11 (permalink)
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https://www.pirate4x4.com/forum/showt...ht=inch+oiling
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Old 01-30-2010, 07:14 PM   #12 (permalink)
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I have a set of d60 BJ inner C's if you are interested. Was gonna do the same thing, but make a sterling front axle instead.
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