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84 K20 "Ethel" Not an Sbc/NV4500/241C

Semi restoration of a 1984 K20 pickup. 5.3 LS, nv4500, np241c.
LOL I had a 3500 in my s10... behind a 4.3 it wouldn't shift at 5500.. no just no.. road ranger or nothing.. 13 spd
 
I'd be worried about it with any sort of weight

I had an 88 GMC with a 350 TBI and the Getrag 5 speed. I used to tow a 6000 lb trailer through the mountains with it. No issues, I just didn't tow in 5th gear. This was the weakest year for the 5 speed too. The NV3500 in later years was much stronger. I think these get a really bad rep for less reasons than the 6.2 does.
 
That's fine and dandy but I have a 4l80 and I do not have a nv3500. So if ya want send me one and I'll try it..
 
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