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Rear anti roll bar lengths (width of chassis)


jody391

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There are 2 types of rear ARB; over the diff mounting and under the diff mounting. I think you have the over the diff version which is shorter. Don't know when Caterham changed but my '93 de Dion used to have an over the diff mounting and when I had my chassis modified for the under diff mounting I had to source a 2nd hand ARB which was longer

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Just been rebuilding my rear.  Here's a pic of the mounting:

20230409_183801.thumb.jpg.fdabb6ba5a22df58ba61b3e579ab19ea.jpg

There is a plate with fixed threads which passes down from above inside the seat belt mounting box.  These then pass down through the mounts for the bar.  The other end attaches to link pieces which at the bottom are screwed into the back of the radius arm bolt - special bolts with the head drilled and tapped.

Does that help?

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I think you're just missing the seat belt box.

Why not just exchange the ARB if you've already got lower mounts fitted?  The disadvantage of the over the diff type is that it's near impossible to get the ARB in or out with the diff in place (std diff).  There is very little clearance.

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