Morris Minor 5-leaf Spring U-bolt with Nyloc Nuts. Sold as a Pair SUS709-SetA

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Morris Minor 5-leaf Spring U-bolt with Nyloc Nuts.  Sold as a Pair   SUS709 / ACA5497

Its always wise to replace this type of item in pairs... given that if one side is worn or the threads are stripped etc the chances are that the other side needs doing at the same time:

Typically as found on many models of Morris Minor Cars

Overall length 155mm
Width (center to center) 63mm