The International Cessna^® 170 Association

Hello every one. For those looking for a less expensive alternative to the J-3804-28 mount, the following part numbers can be used. All Lord mounts use a jelly spacer with the squish tube which helps with dampening on startup. This is not necessary if using a carbon propeller. aka Newton’s third law makes the prop spin faster rather than the plane feeling the torque of engine start.
J-3804-28 1200 lb/in shear springrate ——- stock option.

J-3804-31 1400 lb/in

J-3804-37 1650 lb/in

J-3804-39 1750 lb/in

J-6545-1 1200lb/in This using a different type of isolator.

Barry mount options:
94110-40. Same as J-6545-1

94110-02 same as J-3804-28 minus the jelly spacer.


Cheers and happy shopping!!

Good info.

More here: viewtopic.php?p=139316

I wish I had this info a couple of months ago. Those Lord mounts are now $500 a piece! I just installed them today.