| Chevy & GMC |
| 1988 - 1998 extended cab heights are 1" lower than that for the regaular cab application. |
| 1999 - 2000 1 ton crew cab trucks take the 1988 - 1998 regular cab size box applications. |
| 1999 - Up Stepside Magnum has a raised fin at the rear of the cover. |
| 1999 - Up regular and extended cab full size applications have the same canopy heights and angle and box sizes. |
| Note: The "one ton Dually" box flares outward from back to front - resulting in the flared portion of the box showing when a canopy is installed. |
| Crew cab models have 4 full doors opening same as car doors. |
| 2004 Canyon / Colorado models would require smaller side windows if roof racks are required. |
| 2007 was a crossover year and customers need to indicate if their truck is a "Classic Body" style or "New Body" style. |
| Dodge |
| 1994 - 2001 Full size trucks have the same cab heights, angles, and box dimensions in the Regular and Club Cab. |
| 1987 - 1996 Dakota cab heights, angles are the same in Club cab & Regular cab. |
| Dodge extended cabs 1994 to 2001 with the suicide type door opening are known as quad cabs. |
| The 2002 Dodge 1500 models & 2000 up Dakota "crew cab", and 2003 full size "quad cab" trucks have their 4 doors opening like car doors. |
| 2002 Short bed 1500 models begin Dodges new dimension boxes, 2500 & 3500. |
| Ford |
| 1980 - 1996 full size cab angles and heights are the same. |
| 1997 - 2003 full size super cab and regular cab angles are different. The regular cab angle is a more forward angle. |
| 1993 and newer Ranger units will fit the 1992 and older Ranger box, however, the canopy will sit wider on the truck box, length and heights are the same. |
| 1992 and older Ranger models will fit the newer 1993 up boxes, however, will sit narrower on the truck box, length & heights are the same. |
| 2004 Short bed F-150 "Heritage" takes the same sized box models as for the 1997 - 2003 F-150 Super Cab. |
| 2008 F-250 Super Duty gates are raised to close upon the top of the newer truck tailgates - box sizing is the same as 1999 - 2007 models |
| Isuzu |
| 1997 and newer short box Isuzu Hombre's have the same fit applications as a 1994 - 2004
s-10/15/Sonoma truck. |
| Mazda |
| Cab Plus - is the Extra Cab model |
| 1998 and up models are specific for the newer narrower truck box dimensions. |
| 1994 - 1997 Mazda models will fit 1998 and newer trucks, but the canopy will overhang along the sides of the narrower 1998 and newer Mazda box. |
| The specific fit for the 1998 and newer model will fit the 1993 - 1997 trucks, but be narrower at the front bottom of the canopy. |
| 1993 and newer Mazda cab angles and heights are the same. |
| Nissan |
| 2003 long box Frontier crew cab is the same sized box as the 1998 & up Frontier king cab box. |
| The specific unit for the 2002 long box crew cab has the cargo light area widened for more clearance of the newer cab brake light. |
| 1995 1/2 year models will fit the 1987 - 1995 1/2 year models, however, the front window is lower in height to allow for the newer brake light recessed area placement. |
| 2001 "Frontier" tail-gates have a double bend in the baseplate. This is to accomodate the truck tailgate having a wider molded plastic piece attatched. |
| the 2003 Nissan crew cab long bed seems to have undergone a mid-year bed size change from 76" to 80". The wheelbase is the same. Note: measure the truck bed before ordering! Range Rider models are designed for the 76" box. |
| Toyota |
| "Double Cab 4dr" refers to the same as a "Crew Cab". |
| "Crew Cab" / Double Cab - have 4 doors opening like car doors. |
| Extra Cab & Access Cab - have a "suicide" / opposing type door opening. |
| Compact & Tacoma model clamping - majority of installers will us a #2002 Titelok clamp. The top "reach" portion of the clamp requires trimming 3/8" off so that the top portion of the clamp will then fit to meet the outer flange and shell properly - rather than it being too long and pushing the shell outward and resulting in the rear door spacing becoming too wide. |