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Old 03-20-2010, 05:10 PM   #1 (permalink)
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Profab transfer cases?

Alrighty so I'm starting to look at transfercases with multiple gears/better gear selection for my race truck (mud bogs, 1980 ford f-250, dana 60/sterling 10.25 for now, 4.56 gears, running ford 400 (posted a bunch about it, but its race prepped in the low 600hp range). Now since i've decided to stay with a manual for now I want to get a better TC in terms of low range/gearing choice over the np205 in there now. Cost wise everything after market seems to be in the 2-2500 range for new.

That said what are everyone's thoughts on these from profab (scs has one too) cases: http://www.profabmachineinc.com/mud.html

Just curious if they are as stronger or stronger than the np 205, and whether the cost is worth the benefit of the quick change ffeature (i do both bogs and drags)?
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Old 03-21-2010, 12:35 PM   #2 (permalink)
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the profab and scs transfercases are the strongest case you can buy hands down scs advertises that they have been unbreakable for the past 11 years
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Old 03-21-2010, 02:57 PM   #3 (permalink)
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yeah I've seen that advertisement, just curious on those that have first hand experience with them, as i've see a lot of guys with the drop boxes and such, just have seen anyone run on of the transfercases.

Also how bad are the gears to swap out with these quick change units?
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Old 03-21-2010, 03:11 PM   #4 (permalink)
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Quote:
Originally Posted by 03dodgeoffroad View Post
scs advertises that they have been unbreakable for the past 11 years
just because they advertise it, doesn't mean it's true.
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Old 03-21-2010, 03:16 PM   #5 (permalink)
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yeah I've seen that advertisement, just curious on those that have first hand experience with them, as i've see a lot of guys with the drop boxes and such, just have seen anyone run on of the transfercases.

Also how bad are the gears to swap out with these quick change units?
my buddies have run SCS cases and i've had a profab. both cases are good units. we have all been running the 12" drop units, so that's what all the experience i will give is on.......

both cases have broken, but they're the strongest cases out there. i've never seen either brand break in person. also, the profab will require machine work on the yokes if you plan to run 1610 u-joints on the outputs.

quick change gears are a ~10 minute job tops on either brand.


i looked around for pics of a broken SCS, but couldn't find them. i'm not sure what brand case this is, but here's some carnage anyway.





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Old 03-21-2010, 04:10 PM   #6 (permalink)
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is there any other manufatures out there that make a case like the profabs or the scs's?
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Old 03-21-2010, 05:49 PM   #7 (permalink)
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Just on strength, how do they compare to a 2.5 or 5 ton case?
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Old 03-21-2010, 06:20 PM   #8 (permalink)
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From a truck pulling perspective, the Pro Fab and SCS are both stronger than a 2 1/2 ton case.
Not sure on the 5 ton case, since they are WAY too heavy (weight wise) for the pullers to be interested.
Also, the variety of gear ratios available makes the Pro Fab and SCS MUCH more versatile than any other case.
The n/a 650 cubic inch pullers are pushing about 1500 horsepower thru them. The blower 4wd guys are pushing close to or just over 2000 horsepower.
The diesel guys are close to that now (with staged turbo's) AND are weighing 8000 lbs., and MOUNTAINS of torque.
Turning 34" tall by 18" wide Cepek or Pit Bull tires.
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Old 03-21-2010, 07:27 PM   #9 (permalink)
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Just on strength, how do they compare to a 2.5 or 5 ton case?
they're both stronger than a 2.5 ton case and probably weaker than a 5 ton. however, nobody runs a 5 ton case. i'd bet the 5 ton case is 6 or 700 pounds.
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Old 03-21-2010, 07:37 PM   #10 (permalink)
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So sounds like its a good bit stronger than anything available from the light truck oem's (maybe a nv 271 is close, but the case i think would be a weak point), and probably a good bit stronger than the stak's and atlas's out there too, only disadvantages i can see to those is the lack of low range selection (ie no 10:1 low range), and no ability to shift the front/rear drives into neutral. But for what i do I've never had the need, nor do i see the need. As I see it as a crutch for lack of driving skills , or lack of other more important equipment (kinda like gearing, people go with insanely slow gears to make up for a lack of hp ).

Anyone know the gear ratios available for the profab transfer case (not the drop boxes as i think they will be different, as the scs ones are different)

So looks like i'll be going the route of the quick change transfercase. Any reccomendations on which one to go with?
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Old 03-22-2010, 09:13 AM   #11 (permalink)
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only disadvantages i can see to those is the lack of low range selection (ie no 10:1 low range),
http://www.profabmachineinc.com/PDF%...ansferCase.pdf

There is some serious low gears if you have the right lower gearset. I have the 2.5 lower set with a 200 series quickchange gear and a 1000 series. One for indoor shows and and one for outdoor.

My case was on a 2000hp truckpuller for 5 years and looks like brand new!! I wont break it with my HP if he didnt.
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Old 03-22-2010, 11:21 AM   #12 (permalink)
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I would say Pro Fab, just because Larry is a crazy truck puller. And he needs to pay for a diamond ring,
SCS is easier to deal with now that the Dad, (Mike) retired. For some reason I hate calling some place I'm going to spend a couple thousand dollars with and be told how stupid I am.
Both build EXCELLENT products. SCS does make a disconnect so you can have 2wd or 4wd. They hang one of their "reversers" on one of the outputs.
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Old 03-22-2010, 05:56 PM   #13 (permalink)
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looks like its going to be a profab for sure, just because of the gear ratio's available, the scs only has (according to the website anyway) from a 2.64 over to a 2.64 underdrive.
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Old 03-23-2010, 08:32 AM   #14 (permalink)
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If you look in "Mud Life" mag, the mud guys and I've also noticed, the monster truck guys use Pro Fab a lot.
If you wanna get really wild, when you get Larry on the phone, ask what all they can do,,, they can "stack" the cases and get you killer reduction! And some monster guys need that much drop too.
They will also build you special cases, like if you build rear engine, they can make a case with an extra gear to get the rotation turned the direction you need.
Tell them "Harold the wierd tech guy from Iowa" sent you !!!!
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Old 03-23-2010, 11:00 AM   #15 (permalink)
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They will also build you special cases, like if you build rear engine, they can make a case with an extra gear to get the rotation turned the direction you need.
Now there you go putting all sorts of ideas in my head, ya ass lol. Truck will stay front engine, mid mount for the time being. But since you mention their capabilities, i'm going to assume they'd be able to make me an adapter for whatever unit i decide to go with for a married tranny/transfercase?
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Old 03-23-2010, 05:59 PM   #16 (permalink)
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Although I've personally run neither one; I have several friends who have run both cases. You wouldn't be disappointed in either, and yes they are in fact much stronger than a new process 205. Ultimately, I think its a crapshoot decided by which has the options you want and the price you want.
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Old 03-23-2010, 08:16 PM   #17 (permalink)
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my biggest concern was the gear ratio options, as the scs units based on the website don't have as big a range as the profab, and that in itself is worth any extra money (haven't heard back on a price of one yet though).
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Old 03-23-2010, 08:47 PM   #18 (permalink)
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May need to call. Larry and Lisa not so good on checking e-mails I have noticed.
Also, you'll have to ask on married adapter, not sure. worst case you would just have to use coupler.
Most times the inputs/outputs are 1 3/4" 10 spline. LOTS of truck yokes use that spline, and Pro Fab and SCS both have an array of couplers in that size/spline count. If you want to short couple a transfer case to a transmission, ask about their "misalignment" coupling.
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Old 03-23-2010, 09:11 PM   #19 (permalink)
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Thanks for the input, yeah i wanna keep everything as short and tight as possible, but if i need to divorce mount then so be it, but yeah i'll give them a call and see what they can do, thanks again.
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Old 03-25-2010, 08:47 PM   #20 (permalink)
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What are the differences between Profab's monster, quickchange, and mud cases?
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Old 03-26-2010, 08:11 AM   #21 (permalink)
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I can't answer that for sure.
I have seen the monster cases, and it seems to me some have one more gear in them to change rotation for rear engine trucks, and some others have two more gears to get the drop they want.
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Old 09-28-2010, 07:05 PM   #22 (permalink)
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Any more info on the Profab? How did it turn out for you?

I'm looking at doing the Profab in mine as well..
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Old 09-28-2010, 07:43 PM   #23 (permalink)
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Haven't had the chance to pick one up yet as something let go in the motor on july long weekend and i haven't had a chance to tear into that, so it'll be waiting till the motor gets dealt with.
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Old 09-29-2010, 10:47 AM   #24 (permalink)
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Ahh, sorry to hear that man.

Good luck with it!
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Old 09-29-2010, 06:50 PM   #25 (permalink)
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Its just an excuse to go bigger ;D, forged stroker on the giggle gas, then again it all depends on how bad the damage is.
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