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$129.95

GRC Step-Up Subframe Connectors 1979-04 Mustang GRCSF-1

GRC  Step-Up Subframe Connectors 1979-04 Mustang GRCSF-1

The GRC Performance subframe connectors incorporate a unique "step up" design that supports the floor pan of any 1979 -04 Mustang as well as connecting the front and rear subframes together. Our subs also contain "contour bends" to allow the subs to follow the shape of the floor pan eliminating the air gap between the floor and subframe, allowing for maximum ground clearance, even when running side exhaust kits. We also made the subs as wide as the factory frame and as long as we possibly could without having them protrude past the end of the stock rails.

Another important point when selecting subframe connectors is weld contact area. GRC subs are designed to have as much weld contact area as possible. Over half of each sub can be welded to the stock rails. Included with each kit is a seat cross brace and torque box reinforcement plate to further strengthen the structure of your Mustang. Select "Online Instructions" on our home page to view the instruction sheet.

Note: These subs do not fit 1996-98 Cobra Mustangs.

Pre-welded tabs help align the front of the sub with the factory rail and give additonal welding contact area.
Contour bends allow for maximum ground clearance and weld contact area.
"Step up" design eliminates air gap and allows for side exhaust clearance and floor pan support.
Heavy duty seat cross brace and torque box reinforcement plate add to the overall strengthening of the Mustang structure.
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