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Rebuilding an NV4500 Manual Transmission Photos

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Here's our Larry's Automotive-rebuilt trans ready to reinstall in our Chevy pickup. The folks at RSG note that one of the important things to remember about the NV4500 is that it requires Castrol Syntorq LT synthetic oil (or equivalent--RSG has an equivalent that they sell under their own brand name) due to the synchronizer material and design, as well as the large amount of gear teeth in mesh in this unit. Using standard gear oil will cause the NV4500 to shift poorly and eventually fail.
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