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Old 10-27-2024, 08:42 PM
PDUB PDUB is offline
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Join Date: Jul 2003
Cobra Make, Engine: Unique Motorcars 289 USRRC, 1964 289 stroked to 331, toploader
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...looks like standard Jag outboard brake hubs from 94-96 XJS cars. I think they were available on a few other models, as well, but don't quote me on that. Bolts up to the standard Jag center section, from the fulcrum bracket out - meaning lower inboard fulcrum bracket/control arm/hub, and spacer for the brake rotor/axle/hub on top. I am using these on my Unique Motorcars 289 USRRC. Below is my suspension in the wild!

It should be noted that there are some subtle differences in the design, one being that there is a different outboard u-joint for the drive axle, an easy swap. Additionally, the lower outboard fulcrum point on the control arm, where it connects to the hub carrier for the outboard setup, uses a smaller diameter bolt shaft, so the lower control arm and hub are specific to this design. I am told that both the control arm and hub carrier can be drilled for the larger bolt and thus work with the older control arms/hubs. A guy Daze has some info on this, as well. I think we even had a discussion on here years ago, when I was first researching this. Hope this helps!


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Unique Motorcars 289 USRRC
1964 289 5-bolt block
Toploader and 3.31 rear

Last edited by PDUB; 10-27-2024 at 08:51 PM.. Reason: Added info...
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