Howdy Paul,
Since you don't know much about them, I'd recommend looking elsewhere. The traclink is an allright product (it's just a relatively short torque arm, nothing more), but you need to understand a couple of things. The most important of which is the amount of antisquat it puts down. Since I haven't been too active in with the Mustang thing lately (been concentrating more on the crotch rocket) the exact numbers escape me, but let's just say it's a bunch. I mean a bunch. Something like 150% where the Griggs T/A puts down right about 100%.
For those who don't know, antisquat is measured in a percentage of the force that the rear
suspension is exerting in an upward direction. Basically, if the action of the rear
suspension causes X newtons of upward force (which will ultimately cause or at least contribute to wheel hop, i.e. loss of traction), 100% of antisquat would transfer X newtons of downward force back into the rear
suspension. 150% would result in 1.5X newtons downward, which is a net INCREASE in downward force.
Good thing? Maybe. Depends on what you're looking for. If you can get the front end built properly to balance out the load and deal with the wild swing in traction from off to on throttle, go for it. But be sure to reinforce the floor of the car too. Last time I looked a a traclink install, they were all being installed directly to the floor pan (with some fender washers to distribute the load).
The Griggs and MM units mount to a steel structural member welded to the subframes. The traclink, exerting more force to the nose mount, bolts to sheetmetal. Less force being mounted to structural steel beams. More force being mounted to sheetmetal. Hmmm... Care to guess how many traclink owners have either found cracks in the metal surrounding the mount? Care to guess how many have flat out ripped the mount out of the belly pan? I know of lot's of cracks and have talked to one guy who had his ripped out. In GW's defense, it was a damn powerful car with some fat, sticky tires. Regardless, the sheetmetal mount is bad news. If you plan on going that route, plan on reinforcing the belly pan in that area with some decent steel (I'd use .125" both inside and outside the car) and tie it in to the cars structure.
Of course, all of this is moot if GW has changed the mount configuration. Looking at the picture though, it doesn't look like it.
Anyone know anything about this and how it compares? I've never heard a bad thing about Global west.
Traclink:
http://www.globalwest.net/mustang 79-98.htm#Traclink Traction kits