built transfer case

[cloneman315]

ok well hopefully mine dosent break but if it does are u guys just running to the junk yards etc or are u rebuilding yours?are there any upgrade parts u can put in them ?

 

[George Blake]

Re: built transfer case

You asked this one already.
http://www.syty.net/forums/showthread.php?t=34708&highlight=transfer+case+cryo
Only thing is cryo and possibly run some type of external pump if you want to cool the transfer case fluid so the viscous cools down quicker after launches.

 

[cloneman315]

Re: built transfer case

yeah guess i did,but i guess u dont hear mutch about them breaking

 

[George Blake]

Re: built transfer case

The main thing "breaking" in them is the viscous clutch component. When it ramps up to full hump(from fluid shear), the silicone expands from heat. There is an air gap(bubble) in the viscous housing. Once the heat and pressure gets so high, the viscous will crack like in the pic that Jeff has of Jeremy's transfercase.

 

[typhoon92]

Re: built transfer case

I had the output shaft break on my syclone transfercase. Hey George do you happen to have a spare output shaft that you would want to sell?

 

[jwaller]

Re: built transfer case

I have a output shaft for a sy but not a ty. $225 shipped. why so much? cause I don't really really want to sell it but if you want it thats the price. hope this doesn't piss you off.

 

[JSM]

Re: built transfer case

The main thing "breaking" in them is the viscous clutch component. When it ramps up to full hump(from fluid shear), the silicone expands from heat. There is an air gap(bubble) in the viscous housing. Once the heat and pressure gets so high, the viscous will crack like in the pic that Jeff has of Jeremy's transfercase.

this one?

http://gallery.jsmanufacturing.com/main.php?g2_view=core.DownloadItem&g2_itemId=967&g2_serialNumber=2

 

[George Blake]

Re: built transfer case

Yep, see how the case of the viscous came apart at the rear?
I don't stock stuff like that anymore. I have a rack full of stuff that guys "swore" they would get, then I never hear from them again. If you want a true output shaft upgrade, get a Ty shaft.

 

[cloneman315]

Re: built transfer case

so what is different about the ty one?what do u have to do? just change to a ty case and or driveshaft also ?

 

[Flyin Ryan]

Re: built transfer case

as far as rebuilding.. I snagged this info from somewhere off this site in the past

REBUILD INFO FOR BORG WARNER 4472 TRANSFER CASE FOR SYTY


http://www.drivetrain.com/transfercasesparts.html#Borg-Warner 4472

Borg-Warner 4472 & 1372 All-Wheel Drive Transfer Case 1990-1998 Astro & Safari / 1991-1992 Syclone / 1992-1993 Typhoon / 1991-1997 Bravada
PART NUMBER
PER UNIT
DESCRIPTION
TYPE
YEARS
COST
K272000 - Rebuilder Kit - Bearings, Gaskets and Seals $109.29

K272900 - Overhaul Kit - Gaskets, O'Rings and Seals $30.08

201207C - Adapter Gasket $2.30

201055 - Input Seal $9.80

201048 - Front Output Shaft Seal $9.00

201087R - Rear Output Shaft Seal 27 Spline Outputshaft $17.28

201045 - Rear Output Shaft Seal 32 Spline Outputshaft $7.28

8008 - Rear Bushing - Not in Kits 27 Spline Outputshaft $12.42

201448 - Rear Bushing - Not in Kits 32 Spline Outputshaft $24.70

272888T - Drive Chain Syclone/Typhoon/Bravada/ S10 1.75" Wide - 43 Links $149.94
Random pitch, one blue linkback, combination round and square linkbacks 272888V 1

Drive Chain - Astro/Safari 1.75" Wide - 43 Links $141.81

 

[10secTy]

Re: built transfer case

Hoovers broke a couple outputs when they went to the slicks. They changed to a Typhoon output and I have not heard anymore about breaking the outputs.

I had all the guts of my tcase cryo treated and I will be using a typhoon case in the Syclone.

Nolan

 

[George Blake]

Re: built transfer case

The biggest problem is the jerking. When the tail end bounces, it loads and unloads the drivetrain. The shafts are at the center of it and it's gotta give somewhere. The smoother the takeoff(suspension wise) the better the chances are.