The following is a visual guide to our base rack towers. The towers are grouped by how they attach to the roof and then by newest to oldest.
Common replacement parts are listed for each, clicking the product name will take you to the product web page where additional parts may be found.
You can find instructions for current products by clicking the product name. For discontinued products please click here and enter the product name or part number, or contact customer service at the contacts below.
Couldn't find what you needed, or have additional questions? You can contact customer service here or by phone at 888-925-4621 during business hours
Naked Roof Towers
BaseLine Tower (PN 8000146) 2016 - Present:
For naked roof fits, uses BaseClips. Not compatible with Q, Y, or RidgeClips
Parts List:
8880623 Adjustment Bolt w/ Clip
8880669 Swing Screw
Q-Tower (PN 8000124) 1994 - 2018:
For Naked roof fits. First generation Q-Tower was PN 800105. Please see this article regarding fits. Q-Towers use Q-Clips, not compatible with BaseClips or Y-Clips. Q-Towers are being phased out and will be replaced by the BaseLine in 2018.
Parts List:
8880047 Single tower8880048 Stripped tower8810071 Cam Cover
8810073 Lock Fastener set of 4
8880703 5mm Wrench - Contact customer service
For base pads click here
Discontinued 1C SST Tower (PN 8000102)1987-1996:
For naked roof fits, used Y-Clips, not compatible with Q-Clips or BaseClips. Click here for a list of historical fits.
Parts List:
NO PARTS AVAILABLE
SideRail Towers
TimberLine Tower (PN 8000147) 2016 - Present:
Fits Raised factory rails, replaced RailGrab towers in 2016.
Parts List:
8880615 Pitch Adj Bolt Set of 4
8880820 Strap Kit
RidgeLine Tower (PN 8000145) 2016-Present:
Mounts to factory flush mount and some raised side rails using RidgeClips.
Parts List:
8880615 Pitch Adj bolt set of 4
Discontinued RailGrab Tower (PN 8000138) 2009 -2016:
Fit on factory side rails. Replaced by the TimberLine tower in 2016. Click here to see a list of historic fits for this tower.
Parts List:
Discontinued EzRider / Locking EzRider. 2004-2009:
Fit on some raised and flush mount side rails, replaced by the RailGrab in 2009.
Parts List:
8890099 Tower pad - Contact customer service
Discontinued DoubleCross (PN 8000110) 1995-2002:
Fit on raised factory rails. Replaced by LowRider in 2002. Click here for more information on this tower and a list of historical fits.
Parts List:
NO PARTS AVAILABLE
Discontinued LowRider / LowRider Max (PN 8000118, 8000136) 2001- 2009:
Fits on raised factory side rail, replaced by RailGrab in 2009. LowRider Max used one of three different Claws depending on vehicle. Click here for more information on this tower and a list of historical fits.
Parts List:
8810150 Claw Pad - Contact customer service
Track / Fixed Point
SkyLine Tower (PN 8000148) 2016 - Present:
Mounts to factory tracks and some raised rails with the use of Landing Pads.
Parts List:
8880615 Pitch Adj bolt set of 4
8880618 Rubber Topper
Discontinued Control Tower (PN 8000214) 2002-2016:
Mounts to factory tracks and some raised rails by use of Landing Pads. Replaced with SkyLine in 2016. Related articles: Custom Installation, Landing Pads
Parts List:
8880703 5mm hex wrench - Contact customer service
Discontinued Locking RailRider1 (8000208), Locking RailRider 2 (8000209), Locking RailRider 3 (8000210) 1997-2002:
Fit on factory tracks, , same towers, different mounting hardware. Mounting hardware used with these was similar to the current Landing pads, but these towers are not compatible with Landing Pads.
Parts List:
Locking Rail Rider 1, 2 and 3
8810142 Wedge Assembly set of 4 - Contact customer service
Locking RailRider 1 Only
8810075 "B" Plate set of 8 - Contact customer service
8810156 "C" Plate set of 8 - Contact customer service
Locking RailRider 2
NO PARTS AVAILABLE
Locking RailRider 3
NO PARTS AVAILABLE
RainGutter Tower
1A / 1A HighRise Tower (8000101) 1979 - Present:
Used on cars with external rain gutters or with Bolt Top Loaders Side Loaders. For more information on the brackets click here. Not compatible with tracks, naked roofs, or any type or clips, Q, Y, or BaseClip.
Parts List:
8810007 Tower shear block base set of 4
8810009 Tower rivet w/ PAL nut
If you have further questions please contact us here, or by phone at 888-925-4621 during business hours.