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Tips
Tips

TR4/4A TR3A wheel hubs and TR4A wheel hubs?

Front hubs the same.

Solid axle cars (incl TR2s, 3s, 3As, 4s & non-IRS 4As) have same rear hubs.

TR4A IRS hubs totally different.
<span style="font-style: italic">
Should add: if looking at used hibs, they may be fitted with studs for either disc wheels (longer) or wire wheels (shorter). Studs can be shortened or changed outright as required.</span>
 
:iagree:
The wire wheel and disc wheel hubs have different part numbers, but as Geo noted, the only difference is the studs (which will interchange).
 
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