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Old 07-29-2010, 06:06 PM   #1 (permalink)
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Unknown transfer case

There are two chevy's at the JY and have interesting transfer cases.

They are mid-late 90's chevy 3500 SRW pick-ups. They both have 6.5L turbo diesels and an auto. Would this be the 4L80E?

the transfer case is similar to a 241, aluminum and most likely chain driven. There are no tags on them and they are low in the mud and I didn't have a jack with me when I was there. Driver side drop.

the Tcase was also ribbed on the outside a lot more/differently than a 241 and had what looked to be a fixed output instead of a slip yolk.

If anyone knows info about this transfer case and the name your help would be appreciated!

I am thinking it could be a nice stout unit that I wont need a SYE for, and coming from a 3500 I bet it will stand up to my BBC. One of my few concerns is the 4-lo ratio.
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Old 07-29-2010, 06:12 PM   #2 (permalink)
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If they are auto's then they are 4L80s, and t-cases are Borg Warner 1440s or something like that.
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Old 07-29-2010, 07:04 PM   #3 (permalink)
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Some of the BorgWarner 1 ton Tcases even have a 6bolt PTO.
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Old 07-29-2010, 07:20 PM   #4 (permalink)
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do you folks know anything else about these cases? like ratios,

also I forgot to mention that they are manually shifted cases, does this match the cases you guys are talking about?
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Old 07-29-2010, 07:23 PM   #5 (permalink)
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thanks for the point in the right direction!!

Borg warner 4401

looks like a stout case, I may grab both of them, they should have 32 spline input and bolt right up to my chevy NV4500

all I needed was to know it was a borg warner, after that searching was a lot easier! Looks like it has a similar low ratio to the 241 I already have

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Old 07-29-2010, 08:03 PM   #6 (permalink)
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NOW these are the good things to hear!

Is this a problem that happens easily?[EDIT: that's probably what "super prone" means] Do you think that I am better off with my 241C?

I am going to be running a BBC with estimated 550+ tq, a NV4500, 5.13 geared/locked tons on 37's

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Old 07-29-2010, 08:22 PM   #7 (permalink)
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thanks, I appreciate your input, I didn't feel like getting all dirty this weekend at the JY anyway.

I know a 205 would be the way to go, and I have easy access to a few in this JY, and I can get stuff cheap. Can a 205 be clocked for a driver drop? I have a Ford HP 60 front and I'm definitely using it.
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Old 07-29-2010, 08:35 PM   #8 (permalink)
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Use a chevy 203+ ford 205= drivers drop doubled and stout
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Old 07-29-2010, 08:55 PM   #9 (permalink)
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you maybe able to use this
http://advanceadapters.com/product/1616/50-0220.html
matbe just the clocking ring not sure what nv4500 you have and you could put a 32 spline long input on the ford 205 to make up the diff from the thickness of the adapter ring. not sure it it will work just an idea good luck

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Old 07-29-2010, 08:57 PM   #10 (permalink)
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or a 241 to a ford 205 box4rocks kit
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Old 07-29-2010, 11:27 PM   #11 (permalink)
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thanks for the help and ideas fellas
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Old 07-29-2010, 11:31 PM   #12 (permalink)
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the 205 for a drivers drop has been done. its easy. 205 short chevy input, ford case, chevy 2.75" thick adapter... you can even clock it some.

I wrote a thread on it somewhere on here... you should be able to find that.
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Old 07-30-2010, 12:08 AM   #13 (permalink)
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here you go bro...
http://www.justchevytrucks.com/truck...sfercases.html


you can even use google to find what ratios it has...
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Old 07-30-2010, 12:53 PM   #14 (permalink)
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I did use google and looked at that site ^^^ already, thanks though

when I said that it had a similar ratio to the 241 that's because I used google and found people saying different things like 2.69:1 or 2.7:1, but somewhere around there is fine because I have a nice low first gear in my NV4500, it is the earlier GM 4500 with the 6.34:1 first.

I am going to look into using the 205, I hate breaking stuff, my plan is to build it and be able to hammer the gas with that BBC and not break stuff, I know hot to use finess, I just dont like to
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Old 07-31-2010, 01:26 AM   #15 (permalink)
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Quote:
Originally Posted by The_Punisher View Post
I did use google and looked at that site ^^^ already, thanks though

when I said that it had a similar ratio to the 241 that's because I used google and found people saying different things like 2.69:1 or 2.7:1, but somewhere around there is fine because I have a nice low first gear in my NV4500, it is the earlier GM 4500 with the 6.34:1 first.

I am going to look into using the 205, I hate breaking stuff, my plan is to build it and be able to hammer the gas with that BBC and not break stuff, I know hot to use finess, I just dont like to

those ratios are essentially the same thing.
dont know the GVW of those cases off hand but i know some are alot more than the 205s. that alone is what i would use for a strength comparison. engineers designed those cases to work under those loads or GVWs and rated them accordingly. vs using the ive never seen one break so its unbreakable method for measuring strength. dont get me wrong 205s are strong, but if a modern 1ton t case it rated for at least or around 26000lbs its probably as good as a 205. assuming there arnt any shortcomings in its design because the manufacturer was cutting costs. either way your prob good.
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Old 07-31-2010, 01:46 AM   #16 (permalink)
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Quote:
Originally Posted by trkklr77 View Post
are those the same engineers that diesigned the oilpump in the 243/246/261/263 that beats holes in the case and pukes all of the $25 a quart oil out?

or the dickfores that desiged a tcase with a automatic tranny clutch pack that when it burns up from lack of oil will slip and not drive the truck at all?

what about the bottle cap technical advisory that came up with the briliant idea of takeing a simple 4 stop lever and turning into a shift motor, push button, comp module, sensor reliant, chinses plastic pile of wires and shit electronics?


i think ill stick with the "weaker" case, you know the one that will only handle 5-700hp stock and only has a 2:1 low.
you have the uncanny ability to read something someone writes to completely miss what they are writing about.
so all engineers are dumb huh. the guy was asking if his case was up to the task of a bbc. do you think it will work, if stock it works behind a diesel motor pushing similar torq levels to your built bbc, and does so while towing 26000 lbs. naw man no way a 205 is better... have fun finding the right 205 for a nv4500 and then cutting up your tail housing on your nv4500 to make your 205 shift right.
never did i say the 205 was weak.
one of those dick fucks made your awesome merican' 205(mine is canadian). im sure another dick fuck can make a newer case that is lighter makes less heat and has a better low range and is as equally as strong as your 205.
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Old 07-31-2010, 10:01 AM   #17 (permalink)
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Quote:
Originally Posted by trkklr77 View Post
you have an ability to read something and not get that anything you are boasting is correct or worth the time it takes you to type it out....

THEY ARE NOT UP TO THE TASK OF TOWING 26,000lbs, they can barely even handle stock tires street driving. i have to repair, rebuild, or replace at least 2 aluminum/mag tcase a month.

who give a shit if it it is 25lbs lighter or makes less heat, they dont last and are un-neccassarely over complicated p.o.s.

and it is unpossible to put a 205 behind a nv4500..............
how is it unpossible to put a205 behind a nv4500... round bolt pattern 205 with the round mount ground out to clear the shift rail, or ive seen someone here on the board have thier shift rail come out the back of the case, and what about dodge 205 and a dodge nv4500.

chain cases arnt really that complicated. besids the electronic crap put in them i think there might generally be less parts than a 205.

you do understand why auto makers switched to chain driven cases right? its cause they are more efficient and get you better mpg. so i would say someone cares about all that heat and parasitic power loss.

arnt these the mag cases techs possibly like you impact wrench the filler bolts on and crack the case? is that why you replace them two times a month?

this took me 2-3ish minutes to write.
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Old 07-31-2010, 01:38 PM   #18 (permalink)
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I have a BBC, 5.13's and 37's, I'm not really concerned with MPG or tech. I am worried about strength, it's an offroad rig not a grocery getter.

There are lots of advantages for me with the 205. The case is Iron, it is VERY rocky here is Alaska and I'm sure Iron will be less fussy getting dropped on a rock than an aluminum 241, gear drive is stronger and more reliable, gears don't stretch. These are things I'm interested in.

I was planning on the 241 because it seemed strong "enough" and was cheap, I got it with the NV4500 out of the JY together. My chevy already has a 241, so no adapters or anything, it is a very cheap route and is a decent case.

But ultimately I want a 205
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Old 07-31-2010, 02:41 PM   #19 (permalink)
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Quote:
Originally Posted by The_Punisher View Post
I have a BBC, 5.13's and 37's, I'm not really concerned with MPG or tech. I am worried about strength, it's an offroad rig not a grocery getter.

There are lots of advantages for me with the 205. The case is Iron, it is VERY rocky here is Alaska and I'm sure Iron will be less fussy getting dropped on a rock than an aluminum 241, gear drive is stronger and more reliable, gears don't stretch. These are things I'm interested in.

I was planning on the 241 because it seemed strong "enough" and was cheap, I got it with the NV4500 out of the JY together. My chevy already has a 241, so no adapters or anything, it is a very cheap route and is a decent case.

But ultimately I want a 205
the 241 bolts right up, the 205 dosent. my point was that the 241 was probably good enough. i thought you were thinking about using the borg or a bigger t case than the 241 but it dosent matter.
as far as bashing on a case everything should have a skid plate. even if you dont break the case, the load/force goes somwhere else, so maby the adaptor, the tranney mount ect. personally i would rather have the load/force go from a plate to a crossmember to the frame. everything should have a skid regardless of the material the t case is the exception being an axle simply because it cuts down on clearance. at least thats my opinion.
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Old 07-31-2010, 05:08 PM   #20 (permalink)
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I had to put a BW T case in a stock 6.5, 5 speed, 97 3500 chevy, the owner blew the u joint at the transfer case, The drive shaft smashed a hole in the side of the t case.
They look pretty stout, but you might want to have some sort of guard set up to protect the transfer case from the drive shaft since your going to have allot more hp than a 6.5
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Old 07-31-2010, 11:48 PM   #21 (permalink)
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Quote:
Originally Posted by trkklr77 View Post
sarcasim owns your retarded ass.
well i guess... one bolts right up the other does not. one requires some expensive/hard to find parts the other dosent. so again good luck with putting a 205 behind a nv2500. the 241 is cheaper easier and probably just as reliable.
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Old 07-31-2010, 11:49 PM   #22 (permalink)
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Originally Posted by trkklr77 View Post
sarcasim owns your retarded ass.
are you just mad cause you broke more t cases today than normal?
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Old 08-01-2010, 12:15 AM   #23 (permalink)
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Originally Posted by gee whizz View Post
you have the uncanny ability to read something someone writes to completely miss what they are writing about.
so all engineers are dumb huh. the guy was asking if his case was up to the task of a bbc. do you think it will work, if stock it works behind a diesel motor pushing similar torq levels to your built bbc, and does so while towing 26000 lbs. naw man no way a 205 is better... have fun finding the right 205 for a nv4500 and then cutting up your tail housing on your nv4500 to make your 205 shift right.
never did i say the 205 was weak.
one of those dick fucks made your awesome merican' 205(mine is canadian). im sure another dick fuck can make a newer case that is lighter makes less heat and has a better low range and is as equally as strong as your 205.
Quote:
Originally Posted by gee whizz View Post
how is it unpossible to put a205 behind a nv4500... round bolt pattern 205 with the round mount ground out to clear the shift rail, or ive seen someone here on the board have thier shift rail come out the back of the case, and what about dodge 205 and a dodge nv4500.

chain cases arnt really that complicated. besids the electronic crap put in them i think there might generally be less parts than a 205.

you do understand why auto makers switched to chain driven cases right? its cause they are more efficient and get you better mpg. so i would say someone cares about all that heat and parasitic power loss.

arnt these the mag cases techs possibly like you impact wrench the filler bolts on and crack the case? is that why you replace them two times a month?

this took me 2-3ish minutes to write.
Quote:
Originally Posted by gee whizz View Post
the 241 bolts right up, the 205 dosent. my point was that the 241 was probably good enough. i thought you were thinking about using the borg or a bigger t case than the 241 but it dosent matter.
as far as bashing on a case everything should have a skid plate. even if you dont break the case, the load/force goes somwhere else, so maby the adaptor, the tranney mount ect. personally i would rather have the load/force go from a plate to a crossmember to the frame. everything should have a skid regardless of the material the t case is the exception being an axle simply because it cuts down on clearance. at least thats my opinion.
Quote:
Originally Posted by gee whizz View Post
well i guess... one bolts right up the other does not. one requires some expensive/hard to find parts the other dosent. so again good luck with putting a 205 behind a nv2500. the 241 is cheaper easier and probably just as reliable.
Quote:
Originally Posted by gee whizz View Post
are you just mad cause you broke more t cases today than normal?


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Old 08-01-2010, 12:18 AM   #24 (permalink)
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Originally Posted by mog-10 View Post


how long did that one take you?
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Old 08-01-2010, 12:50 AM   #25 (permalink)
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about 30 seconds
How long did it take you to spell all those words using google spell?

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