All Sub-Frames & Components
All sub-frames come with side brackets, center pivoting crossmembers, and hardware. Sets of side brackets and individual pivoting crossmembers can be purchased separately. Both come with all necessary hardware for installation. Please view the How-To Install a Zero Torsion Sub-Frame video on our Videos page.
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ALL NEW SUBFRAMES: our subframes now come with hot dipped zinc (galvanized) coated inside and out and double layers of gloss hammer-tone powder coating. Hang your storage boxes from the subframes, no problem!
3-point Zero Torsion sub-frame
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A 3-point subframe consists of two side pivot brackets, normally mounted towards the front) and one crossmember pivot, normally mounted in the rear. The support frame weldment, which is bead blasted, hot dip galvanized, then twice powder coated for maximum corrosion resistance, with stainless steel hardware, are also included. A 3 / 4-point subframe has the same set up as the 3-point, but includes a extra crossmember pivot, doubling up crossmember pivots on the rear of the weldment frame.
4 & 5-point Zero Torsion sub-frame
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A 4-point subframe consists of two side pivot brackets, normally mounted in the middle) and two crossmember pivots, normally mounted in the front and rear. The support frame weldment, which is bead blasted, hot dip galvanized, then twice powder coated for maximum corrosion resistance, with stainless steel hardware, are also included. A 5-point subframe includes one extra crossmember pivot which is mounted in the rear next to the rear most crossmember pivot of the 4-point system.
3-point Zero Torsion sub-frame
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8' 3-point - fits 8' rectangle or 10' DA $8656
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10' 3-point - fits 10' rectangle or 12' DA $10,389
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12' 3-point - fits 12' rectangle or 14' DA $10,669
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14' 3 point - fits 14' rectangle or 16' DA $11,126
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14' 3 / 4 pt. - fits a 14' rectangle or 16' DA $12,426
NOTE: A set of subframe crossmember mounting gussets are now included with every subframe crossmember pivot.
NOTE: The 3 / 4-point hybrid subframe system is designed to accommodate large departure angle and rectangle habitats that designed for a pass through installation.
NOTE: A 3-point subframe is advantageous if you desire a cab to habitat pass through.
NOTE: All our subframes are compatible with all our Access Stairs systems.
3-point or 4-point? Watch this
ISO System Promo Video
See more ISO videos HERE
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4-point Zero Torsion ISO sub-frame
NOTE: The ISO sub-frame, named after the shipping container corner locking mechanisms (ISO 1161), turns your Overland Expedition camper into a daily driver with a Zero Torsion flatbed.
NOTE: A 4-point subframe is advantageous for additional support point loading, and is required for sub-frame length greater than 14'.
4 & 5 -point Zero Torsion sub-frame
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8' 4-point - fits 8' rectangle or 10' DA $9656
8' 4-point "ISO" - fits 8' rect. or 10' DA $10,606
10' 4-point - fits 10' rectangle or 12' DA $11,350
10' 4-point "ISO" - fits 10' rect. or 12' DA $12,300
11' 4-point - fits 11' rectangle or 13' DA $11,523
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12' 4-point - fits 12' rectangle or 14' DA $11,695
(also fits the 19' cabover w/DA)
12' 4-point "ISO" - fits 12' rect. or 14' DA $12,275
(also fits the 19' cabover w/DA)
13' 4-point - fits 13' rectangle or 15' DA $11,912
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14' 4-point - fits 14' rectangle or 16' DA $12,128
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15' 4-point - fits 15' rectangle or 17' DA $12,329
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16' 4-point - fits 16' rectangle or 18' DA $12,688
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17' 4-point - fits 17'rectangle or 19' DA $13,620
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17' 5-point - fits 17' rectangle or 19' DA $14,731
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18' 4-point - fits 18' rectangle or 20' DA $14,132
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18' 5-point - fits 18' rectangle or 20" DA $15,361
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19' 5-point - fits 19' rectangle or 21' DA $15,746
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20' 5-point - fits 20' rectangle or 22' DA $16,219
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21' 5-point - fits 21' rectangle or 23' DA $16,668
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22' 5-point - fits 22' rectangle or 24' DA $16,956
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NOTE: All our subframes are compatible with all our Access Stairs systems.
NOTE: A set of subframe crossmember mounting gussets are now included with every subframe crossmember pivot.
Crossmember Pivot Gusset (pair)
Included for every crossmember pivot
Pivots - Zero Torsion ISO sub-frame
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...you can attach camper jacks to the mounts and lift your habitat off at your basecamp to roam unencumbered by height and weight. Brackets are made for both rectangle and departure angle habitats.
Zero Torsion Pivots - Sold Separately
Pair of Side Pivot Brackets
One Crossmember Pivot
Heim Joint Set
$1388
$1879*
$920
*NOTE: A set of subframe crossmember mounting gussets are now included with every subframe crossmember pivot.
See the Zero Torsion sub-frame in action, keeping this habitat torsion free in an extreme environment... on an Overland Driving course.
