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Old 07-04-2018, 12:32 PM   #195
rgunlock
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Join Date: Jul 2009
Location: Tomball, Texas
Posts: 1,592
Re: 57 GMC, frame swap, 4wd, 454 big block, 4 speed

Quote:
Originally Posted by Old57 View Post
Yes, I'd like to hear what you think of it with the 4.10 gears. I'll eventually do the NV4500 trans, but not for quite a while.
Quote:
Originally Posted by Purcell69 View Post
Same here. I'm curious to see how the 4.10/NV4500 combo plays out.

-Joe
Interior is looking great in color!

I've been driving with the 4.10s, SM465/NP205 and 33" tires for a week or so now. It does great for my normal day to day driving which rarely gets above 50mph. 1st/granny low is useless for me - can't even shift into 1st anyway. 2nd is good for starting off and about the first 50 feet. Also good for crawling through parking garages. 3rd gets you up to speed quick and is perfect for turns. I've got a fairly torquey motor also, and 4th is good for a pretty large range, from sharp curves at ~1500rpm to up to 55-60mph which my tach says is 2500-3000 rpm. I would not be comfortable getting out on the highway where anything less than 70mph is obstructing traffic around here. I've got fairly loud mufflers and an imperfectly balanced drivetrain and driving a sustained 3000+ rpm isn't comfortable due to noise and light vibration. My truck seems to feel most comfortable cruising at around 2000-2500 rpm. I will be attempting to do my NV4500 swap this weekend and I'm looking forward to seeing how that works out. Hope this helps.
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Rick

78 GMC K15 SWB, 350/NV4500/NP205/4.10s Project Hazel
71 GMC C25 350/TH400 - Project Angie
59 Chevy SWB Stepside (next in line? Not sure now )
2001 GMC Sierra K2500
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