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Driving Theodore (Our M37) I keep wondering just how loud a stock M37 should be? Pretty much its yelling back and forth in the cab if you want to say anything. Are they all this loud inside?

-jim lee

Yep-loud enough to consider hearing protection, especially at 40mph+....
Gary

Whad'a say? Straight pipe is all I have for the moment.

It actually seems to be a little better with no top on in my experience...


-T

I agree, no top is better. I just put the canvas back on and it's much louder. The weird thing is that most of the noise seems to come from the fan and the transfer case! The exhaust is new and though it's not quiet, it certainly does not compete with the mechanical "symphony". I'm always a bit concerned that I can't hear something critical going wrong...

mine was loud till i put 5 quarts of gear lube in the transfer case and transmission. the guy i bought it from says "oh yeah, they always whine like that"

i have no problem holding a conversation in either of mine with the hard tops on, and my floor pans are not sealed as good as they could be.

I'll qualify my response, that's at 40+mph w/ 4.89's .

Does taking along a passenger help in your machines? I just did a car drop off with one of my guys and its noticeably quieter in the cab with a passenger.

Blocking exhaust noise maybe?

-jim lee

jim lee wrote:Does taking along a passenger help in your machines? I just did a car drop off with one of my guys and its noticeably quieter in the cab with a passenger.

Blocking exhaust noise maybe?

-jim lee

As long as that passenger isn't a wife !

i am thinking of going to tractor supply and buying a sheet of 4x8 foot 1 inch thick rubber mat they put in horse stalls and lining the floor,tranny hump with it.
those sheets probably weigh 100 lbs each.
if we add mass
it will dampen sound

billy wrote:i am thinking of going to tractor supply and buying a sheet of 4x8 foot 1 inch thick rubber mat they put in horse stalls and lining the floor,tranny hump with it.
those sheets probably weigh 100 lbs each.
if we add mass
it will dampen sound

I'm planning on lining my bed floor with them

might as well do the cab too

52PLOWERWAGON wrote:

billy wrote:i am thinking of going to tractor supply and buying a sheet of 4x8 foot 1 inch thick rubber mat they put in horse stalls and lining the floor,tranny hump with it.
those sheets probably weigh 100 lbs each.
if we add mass
it will dampen sound

I'm planning on lining my bed floor with them

might as well do the cab too

i am thinking using cardboard and making patterns that fit together to cover the tranny hump etc
then cutting them out in rubber and maybe tying it all together with black duct tape (that gorrila stuff works good)

I have used those gray foam interlocking floor mats you can find at hardware and auto stores. I think even Princess Auto (Canada) and Harbor Freight (USA) carry them.

Lighter, easier to cut and form, and a closed foam rather than rubber. Worked well in my M1009 CUCV.