ZF5 issues in neutral

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Apr 10, 2017 | 10:24 PM

#16

reamer

Logistics Pro

Joined: Jan 2001

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From: Connecticut

I'll dig it out for you.

Apr 10, 2017 | 10:26 PM

#17

Gary Lewis

FTE Legend

Joined: Jul 2010

Posts: 32,875

Likes: 48

From: Northeast, OK

Quote:

Originally Posted by reamer

I'll dig it out for you.

Hope you put it on here for easy reference.

Apr 10, 2017 | 11:12 PM

#18

xjpilot

Thread Starter

Elder User

Joined: Sep 2007

Posts: 640

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From: Dallas

disregard. I was thinking it was in a PM, but i found reamers post

Apr 11, 2017 | 05:51 AM

#19

reamer

Logistics Pro

Joined: Jan 2001

Posts: 3,789

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From: Connecticut

Quote:

Originally Posted by Gary Lewis

Hope you put it on here for easy reference.

F5TZ7277-A

Apr 11, 2017 | 06:25 AM

#20

Gary Lewis

FTE Legend

Joined: Jul 2010

Posts: 32,875

Likes: 48

From: Northeast, OK

Quote:

Originally Posted by reamer

F5TZ7277-A

Thank you. But, what tricks did you learn about installing it?

Apr 11, 2017 | 11:30 AM

#21

SpencerS

Tuned

Joined: Apr 2014

Posts: 265

Likes: 1

From: Portland OR

i got a zf5 and solid flywheel swapped into my 6.9 truck and it doesnt make much noise in neutral, but at low speed in first or second it is incredibly loud.. and like others have said, the OD makes it very worth it. In my truck with 3.55 rear and stock tires i would be turning ~2200 rpm at 55 which sucks with an engine limited to 3200rpm. now with the OD i cruise at ~1500 rpm at 55

Apr 11, 2017 | 11:49 AM

#22

cadunkle

Cargo Master

Joined: Oct 2005

Posts: 2,297

Likes: 26

From: NJ

To expand on Specer's post, with my '86 6.9 turbo with 3.55:1 gears I'm seeing an over 3 MPG improvement in mostly around town driving after going from C6 to ZF5.

Apr 11, 2017 | 11:52 AM

#23

Gary Lewis

FTE Legend

Joined: Jul 2010

Posts: 32,875

Likes: 48

From: Northeast, OK

I'm not at all surprised. The C6 is a serious power-hog, and with the lack of OD on top of the lack of a lockup torque converter the MPG with one of them really hurts.

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Apr 11, 2017 | 04:37 PM

#24

reamer

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Joined: Jan 2001

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From: Connecticut

Well in my case, the interior "white" silicon boot is just about the same dimension as the tunnel hole, Soooo, to make it a water tight seal, and had to "close up" the tunnel opening so the screws had something to bite into, another thing is the mounting screws with the boot. There is one in each corner, they have to go through, (from top to bottom) 1, black plastic collar, 2. Carpet. 3. black rubber boot, and 3 the silicone boot.

Now, you'll want to seal the silicone boot to the tunnel for water seal. Now trying to align all the other stuff into holes in the tunnel was a "challenge"