Who Has Used Poly Engine Mounts ? - Page 2 - JeepForum.com
LinkBack Thread Tools
post #16 of 19 Old 12-27-2013, 11:15 PM
Registered User
1993 ZJ 
Join Date: Jul 2011
Location: placerville
Posts: 297
I installed the v8 poly mounts in my 6cyl mounts. Think i am the only one who has ever done it and documented it. Almost no more vibrations than stock. Then I also yanked out my 42re and installed a nv3550

Much more responsive to the throttle instead of having power going into movement of the motor. The difference is that the poly inserts are twice as much material than the brown dog mounts or the universal poly mounts that you make yourself.

1993 ZJ Clayton long arms with Johnny joints, custom front axle W yota center, D44 chevy outers, fabtech dirtlogic 2.25, front bilsten rear shocks, tacoma rear axle, 4.88, arb rear, 5 speed, poly motor mount inserts, NP241OR 4-1 ,receiver front for xcr 8k winch
sdmayhew is offline  
Sponsored Links
post #17 of 19 Old 12-27-2013, 11:22 PM
Registered User
1993 YJ Wrangler 
Join Date: Apr 2005
Location: near St. Louis, mo.
Posts: 1,626
I love my Brown-Dog poly mounts in my 4.0. Feels firm and sporty, not "bad" at all. I hear the 2.5 is a no go though.

93YJfalcon is offline  
post #18 of 19 Old 12-28-2013, 03:57 AM
Registered User
1991 YJ Wrangler 
Join Date: Dec 2012
Location: Marietta, GA
Posts: 632
What are these vibrations you speak of? I too have Brown-Dog poly mounts on my 4.0 and an Energy Suspension trans mount and the thing runs smooth.

tom_sprecher is offline  
post #19 of 19 Old 12-28-2013, 06:53 AM
Registered User
1994 YJ Wrangler 
Join Date: Aug 2009
Location: Lexington,SC
Posts: 1,849
Yep - my experience as well. A sporty feel is the best descriptor. It feels like a tighter package with the poly mounts.

1994 YJ Wrangler, 4.0, AX15, NP231, 35x12.50x15 BFG KM2s, 4" RC lift, 1" lift Boom Shackles, 1" BL, 4.10 gears, 8.8 LSD in rear and D30 Aussie Locker in front, on-board air conversion, Ramsey RE8000 winch.
linusb is offline  

Quick Reply

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome