Do Roof Rack Top Channels Need to be Measured for Replacement T-Bolt Spacer Pack
Updated 02/03/2026 | Published 06/30/2024
Question:
Hello, Thanks for the useful video. My question relates to the dimensions of the T-bolt itself because i am wanting to move my Lockrack to a new roof rack that has channel grooves. Specifically, can you tell me the length and width of the flat portion of the T-bolts. The length and width of the flat part of the T-bolt will tell me if they will fit into the load bar channel grooves of the new roof rack. The new roof rack i have is the Lexus OEM roof rack for the 2024 Lexus GX 550 Overtrail SUV. Thanks for your help.
asked by: Christopher D
Expert Reply:
Hey Chris, so I have great news and that is that the roof racks that have top channels nowadays are all very similar in dimension so the t-bolt kits like the part # LR72FR is going to fit without requiring you to measure.
Product Page this Question was Asked From
LockRack Replacement T-Bolt Spacer Pack for Watersport Carrier Channel Mount Bases - Qty 4
- Accessories and Parts
- Watersport Carriers
- Roof Mount Carrier Parts
- Spacers
- Lockrack
more information >
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Jameson C.
2/3/2026
Hey Chris, how did the LockRack T-bolts end up fitting with the Lexus roof rack channels on your GX 550? Knowing how that match worked could really help others moving their carriers to similar factory racks.