i have never had a tank crack....but your looking for the long dorky low tank right? they came on a lot of tx's-txl's from 1976-1979 i think. than there was the short low tank like a starfire tank some of those sleds came with like our tx-c did. i have a tank for you if you need the long low one but its faded but you can paint it, thats what i did with mine.
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