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The factory C7 rear toe adjustment works reasonably well right up until you start asking substantially more from the suspension.
Add serious negative camber and the stock toe links begin running out of adjustment. Add sticky tires and track loads and the factory eccentric also becomes one more suspension adjustment capable of slipping when you'd really prefer that it didn't.
M-80 Toe Links replace both problems with a simple turnbuckle-adjustable link, premium FK rod ends, hardened stainless hardware, and fixed eccentric-lockout plates.
Rear toe has an enormous influence on how stable and predictable a car feels, particularly at speed.
Your alignment shop can spend all afternoon putting the rear toe exactly where you want it, but that number only matters if the suspension actually keeps it there.
That's why we don't particularly love relying on a round eccentric cam to hold one of the more important alignment settings on a heavily tracked Corvette.
Once rear camber moves beyond roughly -2 degrees, the factory C7 toe adjustment starts becoming the limiting factor in getting the rear alignment where you actually want it.
The M-80 provides substantially more usable toe adjustment so adding track-oriented camber doesn't leave you unable to correct toe afterward.
The factory toe link relies on another round eccentric cam for adjustment.
M-80s replace that eccentric adjustment with fixed aluminum plates. Toe is then adjusted at the link itself instead of by rotating a cam inside the cradle.
Our C7 Adjustable Camber Kit replaces the factory round eccentric cams at the lower control arms with positive-position adjustment plates.
But the factory rear toe eccentric is a separate adjustment point. Leave the stock toe link in place and you've still got one eccentric hiding back there.
The M-80 Toe Links remove that final eccentric while also supplying the extra toe range needed when you start running serious rear camber.
Shop C7 Camber Kit
Alignment adjustment should not be complicated.
Loosen the jam nuts, rotate the center section of the M-80, watch the toe measurement move exactly where you want it, then lock everything back down.
Because the link adjusts in place, there's no need to disconnect an end or fight with the factory eccentric every time you want to make a small toe change.
M-80s came from wanting a toe link that fit correctly, adjusted easily, used hardware we trusted, and stayed that way.
The center links are machined from stout .875-inch-diameter 7075 aluminum billet, giving the assembly the stiffness and strength we wanted without unnecessary bulk.
The pivot points use premium FK PTFE-lined spherical rod ends rather than inexpensive generic heims. They're precise, smooth, and guaranteed for life.
Custom tapered pins are machined from hardened 17-4PH stainless steel and press-fit into the spherical bearings to eliminate unwanted play at the joint.
Machined aluminum plates replace the factory toe eccentric and positively locate the mounting point. Adjustment happens where it belongs: at the toe link.
For years we sold another adjustable toe-link solution.
We dealt with fitment issues. We dealt with inconsistent hardware and rod-end quality. And after repeatedly trying to get those problems corrected at the supplier level, eventually the obvious solution was to stop complaining and make the damn things ourselves.
So we designed the M-80 around the C7, selected the hardware we wanted to use, machined the pieces ourselves, and made fitment our problem instead of the customer's.
We walk through the M-80 design and installation on a C7 Corvette, including the eccentric-lockout hardware and adjustment process.
The M-80 link bodies and lockout components are machined for AMT's C7 application using 7075 aluminum and hardened 17-4PH stainless hardware, paired with premium FK spherical rod ends.
We made these because we wanted a toe-link system we could install, align, track, and sell without wondering what problem was going to show up next.
The M-80 system is guaranteed for life to the original purchaser, including the FK PTFE-lined spherical rod ends.
