GRT Modified

Open-wheel modified (2017 Team GRT sheet). Numbers below come from public manufacturer sheets or sanction rulebooks. We do not invent missing values.

Published geometry & baseline numbers

Panhard C-C (QC)

19½"

Panhard frame mount

3rd notch up

Wehrs J-bar mount

6⅝" to bottom of bracket · 7⅜" to bolt center

Rearend location

15¾" inside 2×2 → pinion center @ ride height

Rearend width

60" centered

4-bar lengths

16" top · 13½" bottom

Pull bar

23⅝" C-C @ 20° tight / 18° sweeping · pinion 7°

LR brake floater

16½–17" C-C

Always verify against your exact year chassis and series rulebook. Setup sheets change by year.

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Interactive mid-window card

If a number is wrong for a specific year, email the correction with a sheet PDF. We will update grade and sources.