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Junior Charter Member
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If my memory serves me correctly the bolts you want are 5/16-18. I believe the stock length is 1" but since I like to use the longest bolt to give better grip I used a pair of 1 1.2" long units and cut them down to 1 1/4". I recommend running a tap into the bolt holes as far as it will go without forcing it. Then measure the length of the tap in the hole and add approximately 3/8" to allow for the housing flange thickness plus a lock washer. If your housing is cast, iron I assume, you will probably paint it to prevent rust. Cast aluminum housings look fine either left plain or clear coated. I am a believer in using stainless fasteners because they don't rust. Either way, it will look MAHVELOUS.

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