Optima Yellow Top D31A

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12-21-2005 | 12:51 AM

merrillr4

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Optima Yellow Top D31A

Hello to all,

I just bought two brand new Opitma Yellow top, Model D31A. I remember from reading previous forums that they are a tight fit. I bought the batteries and got them into the trays. Now I am having trouble bolting them down. I thought I read somewhere that someone fabed something up. Who was that person(s) and what did you do? The current bolts are not long enough since the D31's are taller. I went to the local Home Depot and Auto parts store, but no luck. I tried searching on the forum and didn't find anything. Thank you to all for you help!!

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12-21-2005 | 07:11 AM

Commatoze

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From: Sturbridge, Taxachusetts

Does this help??

Quote:

Originally Posted by jrihani

.............My group 31 yellow-top Optimas did NOT just "drop right in", but the modifications were very, very minor. At the inside edges of the battery trays there are several small gussets. I only had to mill one off with my Dremel for the battery to sit perfectly flat (important to me on the drivers side so that the temp sensor was flush on the battery bottom). The passenger side slid in perfectly. The stock battery bolts are a bit too short. You could get some allthread stock to replace it. I work in a manufacturing facility and I had some friends out on the floor to weld in a piece of material. I then shot them with some spraypaint and I'm good to go.

After a LOT of research on this topic I am convinced that the group 34 Optima Red-tops (probably the most widely available model?) will do an excellent job in these trucks. If I ever trade up to a 3rd gen that is what I will almost certainly get................

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