Why Sliding block on racers

[estorhok@xxxxxxxx]

Can anybody tell me why the GTA, jr,m's all used the sliding block rear
suspension as opposed to a watts linkage (like the alfetta)?

I'm considering making a GTAm replica, but would rather put in a less 
maintainence watts linkage instead of the sliding block.  If there were a
really good reason, then I would consider doing the sliding block...

Thanks

Eric Storhok
Ann Arbor, MI

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