NP205 Trans Case Mount

[kyoung]

I have a 68 K10 that the previous owner has installed a NP205 and SM465 into. The transfer case had no poly or rubber mounts between it and the frame when I bought it, it was just bolted to the frame. I am putting in a new transfer case mount and am wondering exactly how it should be placed. Anybody have pictures of how their's is mounted? The assembly manual is no help on this one.

The mount has 4 poly pieces (2 bigger ones and 2 smaller ones) and a metal piece which has 2 big holes in it that the poly pieces fit into. Any ideas?

Thanks in advance.

[msgross]

are you talking about the bottom mounts or the side?


Bottom:
big one's on top, little one on bottom, metal sleeve inside...

Side: borrowed pic

[kyoung]

Mike.

The side mount is what I am asking about.

My set-up does not look like what you have...Maybe I'm missing something. I do not have the top piece that you are showing. I have the bottom piece which is bolted to the transfer case. But it was directly bolted to the frame...I tried to put the flat part of the mount under the frame but it caused the transmission to be tilted in a bad angle.

[Billhilly]

Yes, you are missing the piece that bolts between the verticle side of the chassis and the top of the bracket on the transfer case.

[Tex_50613]

ok I have a dumb question then, I'v had 3 square body chevy's (83, 79, 76) with the NP205 , SM465 combo and not a one of them had that mount, was it a option or had all 3 of my trucks had that pulled off for some reason?

[kyoung]

Originally Posted by Tex_50613

ok I have a dumb question then, I'v had 3 square body chevy's (83, 79, 76) with the NP205 , SM465 combo and not a one of them had that mount, was it a option or had all 3 of my trucks had that pulled off for some reason?

Did they mount right to the frame?

[Tex_50613]

Originally Posted by kyoung

Did they mount right to the frame?

naw they have the mount between the trans and t-case and another crossmember immeaditally behind the t-case with no mounts on it, they don't have the mount your picturing at all

[67gmcstepside]

Is that mount available in after market?

[84 400]

my 77 crossmember mounts right to the frame. The 205 to th350 adapater sits on two poly mounts.

[67mater]

that is the exact mount on my sm420 and t221. weird.

[RaysK20]

My 73 K20 has the side mount for the 205 case. It was a 465 trans now its a th350. But my 78 with the 465/205 did not have one and it never gave me a problem.

[binford]

Chevy stopped using that mount as it was cracking the transmission bell housing on the automatics.

They came up with a rod that bolted into the holes on the side of the 205 and the other end bolted to the back of the block where the bell housing bolts too, to create a triangle to keep the 205 square to the back of the engine when under heavy load.

You need to hold the engine in two locations and the transmission and transfer case in a third position. A 3 legged chair always sits flat having the same pressure on each leg. Adding a mount to the side creates stresses that breaks stuff.

[Richard]

Good information for people to have. But, do you know that the last post to this thread was over 10 years ago?

[jaros44sr]

Originally Posted by binford

Chevy stopped using that mount as it was cracking the transmission bell housing on the automatics.

They came up with a rod that bolted into the holes on the side of the 205 and the other end bolted to the back of the block where the bell housing bolts too, to create a triangle to keep the 205 square to the back of the engine when under heavy load.

You need to hold the engine in two locations and the transmissinon and transfer case in a third position. A 3 legged chair always sits flat having the same pressure on each leg. Adding a mount to the side creates stresses that breaks stuff.

Do you have a pic of exactly where that bar bolts to at the engine block been wanting to do this for years but never had the proper info

[sweetk30]

goes in a bellhousing bolt hole . there is a bolt / stud in that place and the bar goes on the stud part and a flange nut secures the bar to the bolt/stud unit .

[jaros44sr]

Originally Posted by sweetk30

goes in a bellhousing bolt hole . there is a bolt / stud in that place and the bar goes on the stud part and a flange nut secures the bar to the bolt/stud unit .

Thanks for the reply, that makes sense