Shocks

Discuss fixes, upgrades and modifications to your M37

Moderators: Cal_Gary, T. Highway, Monkey Man, robi

Post Reply
User avatar
W_A_Watson_II
SFC
SFC
Posts: 627
Joined: Sat Oct 20, 2007 7:02 am
Location: MO
Contact:

Shocks

Post by W_A_Watson_II »

Ok, it looks like I need to replace the Monro Gas-Magnum 60 shocks I installed on the front of my M when I built it. I went with the Gas-Magnum 60's 66707 as I had a larger spring pack, and they worked great on the trail and RTI Ramp trials, that is until last weekend when I pulled up on a 25 degree ramp and scored a 98. It seems that the extended shock just could not take anymore, and puked oil.

So I could install some limiting straps, but would also like to get a little more shock stroke. The chart below list my (as I see them) options. The top shock (66707) is what I have now.

Image

As my shock with the truck setting on the tires is at 19", and I have 2.5" between the bump stop pads and the frame, I could get down to a 16.5" (or slightly longer as the shock is on an angle), but believe I need a little more short travel to accommodate the axle tilt on a RTI, so I'm thinking a shock that is fully compressed at 16.375".

I like the 3rd from the bottom shock, the 66891. I should gain a good 0.875" of extra downward travel. However the shock is a little smaller in diameter.

:?: Your thoughts? :?:
Thanks,
Will
1946 Dodge Power Wagon
1953 Dodge M37 - "Frankenstein"
My 1953 Dodge M37 WEB Site
Master Yota
MSGT
MSGT
Posts: 828
Joined: Sun Nov 15, 2009 11:50 am
Location: Prince George BC Canada
Contact:

Re: Shocks

Post by Master Yota »

Smaller diameter means less working fluid in the shock. For slow speed wheeling this usually isn't a problem. At higher speeds on rough roads, you might experience shock "fade" out a little sooner. For the truck its on though, I wouldn't be too worried about it...
Ray
1953 CDN. M37
1954 CDN. M152
SydneyM37
CPL
CPL
Posts: 144
Joined: Sat Oct 20, 2007 11:55 pm
Location: Sydney, Australia

Re: Shocks

Post by SydneyM37 »

I am running Monroe Gas magnum 60 part number 66957
so far i am happy with them.
I had too search and search so much to finally pick this model, consulting with stock standard and doing my own
research, no help available this end, as noone knows what an M37 even is.
I wrote in my notes normal ride height, compressed height,extended height, compression forces,
Hell i even learnt the mounts are known as L4 ( go Figure) learnt things called "Bore sizes".

Don't ya just love restoring old trucks--- not
Keep em green to keep ya keen
User avatar
W_A_Watson_II
SFC
SFC
Posts: 627
Joined: Sat Oct 20, 2007 7:02 am
Location: MO
Contact:

Re: Shocks

Post by W_A_Watson_II »

Installed the new longer shocks today. HEre you can see the difference in lengths. The new shock is a Monro Gas-Magnum 60 #66891 (16.375/26.75) while the old one was a Monro Gas-Magnum 60 #66707 (16.0/25.5). The new shock is 3/8" longer when compressed and 1.25" longer when extended.

Image
Thanks,
Will
1946 Dodge Power Wagon
1953 Dodge M37 - "Frankenstein"
My 1953 Dodge M37 WEB Site
Post Reply