transfer case swap

[jjorgensen52]

I'm swapping my TC from my original trans to the new RPM trans I got last week. Question is, when I pulled the old one apart, it appeared to have some sort of thick adhesive on the bolts? Looked like a sealant. I have a new tc to adapter and adapter to trans gasket, but I'm wondering if I need to seal those bolts, or if the gasket and the little o-rings that are on them will do the trick.

 

[SY2932]

Re: transfer case swap

I have done eight syty transmissions thus far and I have never used a sealer on the bolts, just used the gasket, and I haven't had one leak. If follow the Helm's syclone service manual supplement, part number X-9176 to the letter, it doesn't call out applying sealer to the bolts either.

You mentioned having the transfer case to transmission gasket (part number 1564-2511) but you didn't say anything about the transfer case to transmission adaptor gasket (part number 1358899). It is a circular seal that goes in between the transmission and the adaptor. You will need that one as well. BTW, the transter case to adaptor gasket only goes on one way so make sure that you have ALL the bolt holes lined up before you install it. If you don't you won't be able install all the bolts due to gasket interference.

You will want to tighten the transfer case adaptor to transmission bolts to 52 Nm or 38 ft. lbs. It will be the same value for the transfer case to adaptor bolts as well. HTH's

 

[bezerk]

Re: transfer case swap

i used instant gasket, instead of the OEM gasket

 

[jjorgensen52]

Re: transfer case swap

I had both the tc to adapter gasket and the adapter to trans seal. Went on well, after i cleaned the sealant off. My manual said to torque them to 33 Ft lb (original ty supplement), is there any harm in adding a few lbs?

 

[nightdiver]

Re: transfer case swap

Dont add more than 2-3 ft lb cause the cork gasket wil fail and make things worse