In-cab noise under 70dB, doable?

[icor1031]

I read that while moving, the M35A2's cab noise is around 100dB.

If I route the exhaust to the rear of the vehicle and add a muffler, should I be able to get it under 70? (street speed, ~35mph)

How about if I also insulate the firewall, engine hood, and damp the floor / various areas, to lower resonant frequency?

Thoughts? Thanks!

 

[Jeepsinker]

You should be able to achieve less Db than that if you do all that.

 

[icor1031]

Awesome, thank you!

 

[welldigger]

Ya I'd say that's doable.

 

[Warthog]

Almost all of the questions you will have, have been asked many times over the years.

http://www.steelsoldiers.com/showthread.php?28885-M35A2-Sound-Deadening-Project
http://www.steelsoldiers.com/showthread.php?86442-Deuce-Floor-Insulation
http://www.steelsoldiers.com/showth...to-make-a-deuce-quieter-and-warmer-in-the-cab
http://www.steelsoldiers.com/showthread.php?2721-Sound-Heat-insulation

 

[red]

Exhaust routed to the rear and a muffler added brought mine to 84 decibels at 55mph, right around 70 at idle. Not insulated yet.