MGB Monroe rear tube shock part#

Started by MG four six eight, August 19, 2009, 08:22:19 PM

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On June 12 I posted about replacing Monroe Sensa-Trac (5877ST) shock absorbers with Gabriel Guardians (81464). To follow-up...

I have about 8000 miles on the Gabriel Guardians now. Although I still believe the dampening characteristics of the Gabriels are better, they have NOT been trouble free. The distance tubes at the top end of both Gabriel shock absorbers have crushed severely. (I think they used garbage-grade steel.) Since I installed the shocks with safety washers and elliptically offset nuts, there was no danger of things coming apart. However, the crushed tubes resulted in loose mounting, and subsequent banging noises and harshness. (You can tighten them up temporarily while on a road trip, but they continue distorting and coming loose as you drive further.)

GabrielGuardian-CrushedDistanceTube1.jpg

GabrielGuardian-CrushedDistanceTube2.jpg

The previous Monroe shocks appeared similarly constructed, but their distance tubes were definitely more robust. I've extracted one successfully, and transferred it into a Gabriel bushing:

GabrielGuardian-MonroeDistanceTube.jpg

Unfortunately, I destroyed the other Monroe distance tube during extraction so I'll have to come up with another plan for the other side shock absorber.
1971 MGB GT V8
Buick 215 w/ Rover heads, custom EFI & crank-fired ignition.
Custom front and rear coilover suspensions.

MGBV8

Hmm, you still bottoming out, Curtis?  Do you think the Gabriels are any stiffer than the Monroes?

I really need a slightly, (a bit more than slightly) stiffer rear shock. Maybe the Corvette shocks that Bill didn't like. Or, maybe the GAZ adjustables. Yeah, that's the ticket!  ;)
Carl

MGBV8

Anyone have any GAZ info? I just tried the standard GAZ kit over at Jim Watson's/ The GAZ shock is too long for my lowered MGB. The shock measured 12" fully compressed. My Monroe at ride height is right at 12.5".  Need a shorter GAZ.
Carl

mgb260


MGBV8

I would really like to be able to reach under the car & turn the knob at track days & autox.

The GAZ part #s are GT5-2222 for CB & GT5-2223 for RB. Can't seem to find the specs anywhere.
Carl

mgb260


MGBV8

Thanks, Jim. I'll check it out.

GAZ shock specs seem to be Top Secret.
Carl

Scott Costanzo

Carl,
I worked with GAZ via email when I purchased different upper mounts for the front shocks I bought from Moss Europe. The were very responsive. Bet they would be happy to answer your questions.

MGBV8

I sent them an email earlier today, so we will see. Cannot believe in this internet era there is nothing out there. Driving me crazy.
Carl

MustangSix

I had a set of these on the shelf from another project and they were  the right length, so I bolted them on by putting a sheet metal sleeve inside the top mount and simply using a 7/16" bolt on top.  

No idea of the brand, but they have been working well.  Ordered a second set for my son's roadster.  Also seem to work well.  Decent ride, good damping.  

http://www.speedwaymotors.com/Speedway-Short-Gas-Filled-Shocks-Plain,2183.html

302GT

McMaster Carr has a wide variety of tubing that can be used to make shock bushings in steel, stainless steel and aluminum.

GAZ shocks were included with the Hoyle suspension kit I am using. I found these shocks to be poor. The single adjustment made both the compression and rebound stiffer so when rebound was in control compression was far too stiff. Then the bushings around the piston shafts wore out (about 30,000 miles). I replaced them with QA-1 single adjustable shocks (rebound only) and this was a huge improvement.