| Jeep | Model Year | Closest distance between forward towers - (M1) | Distance from uppermost windshield to forwardmost tower foot - (M2) | Closest distance between rear towers - (M3) | Crossbar spread distance center to center - (M4) |
| Cherokee/ Wagoneer | 91/96 | Q4 - 46 5/8" | 6" | Q4 - 46 5/8" | 36" |
| Cherokee/ Wagoneer Max Crossbar Spread | 91/96 | Q4 - 46 5/8" | 6" | Q4 - 46" | 69" |
| Cherokee/ Wagoneer | 84/90 | Q30 - 46 1/8" | 6" | Q31 - 45 7/8" | 36" |
| Cherokee/ Wagoneer -Max Crossbar Spread | 84/90 | Q30 - 46 1/8" | 6" | Q31 - 45 7/8" | 68" |
| Grand Cherokee | 93/96 | Q26 - 41 5/8" | 4" | Q27 - 40 3/8" | 36" |
| Grand Wagoneer | 93/95 | Q26 - 41 5/8" | 4" | Q27 - 40 3/8" | 36" |
