Re: 1991 K30 4l80E or NV4500 behind Cummins?
The NV4500 will be the cheapest and easiest. The 13 speed fuller would be cool, but what a waste in a pick up. You'd get tired of shifting that thing for sure. Not to mention I'm sure it would suck to work on. I put a 8V92 and a 10 speed in a 86 K30 and it was a really tight fit. Sucked to work on once I got everything in there. The 4L80E can be built to handle it but will be expensive to get behind the cummins. You will need an adapter and flex plate, and a controller and a starter. Probabaly around $1700 just to get the trans mated to the cummins. If you want to go with the fuller, I do have one bell housing left that will work for one.
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Ryan
1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread
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1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project
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