10-16-2025, 04:30 PM

Gary H

Ultimate Warrior

Join Date: Feb 2002

Location: Jacksonville

Posts: 1,487

Unusual speedometer gear housing

Just started working on a customer's 72' Bonneville. The car is very original with it's 455-2 bbl engine and long shaft turbo 400 transmission. Found it has this speedometer housing with a wire going to it, along with the traditional speedometer cable. Is this a speedometer speed warning option? I've never seen one in 40 years of working on Pontiacs.

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62' Lemans, Nostalgia Super Stock, 541 CI, IA2 block, billet 4.5" crank, Ross, Wide port Edelbrocks, Gustram intake, 2 4150 style BLP carbs, 2.10 Turbo 400, 9" w/4:30 gears, 8.76 @153, 3100lbs

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