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11-30-2020, 10:19 PM | #1 |
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Join Date: Dec 2009
Location: bisbee, arizona
Posts: 1,529
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Looking for old posts on installing the np 4500.
Sorry to ask but I'm looking for post's on what must be done to install a np 4500 in the 67 to 72 chevy trucks. Did a search but search tools not working. I know they are a few good ones because there are references to them on other sites. Anyway can somebody who knows provide some links.
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11-30-2020, 11:05 PM | #2 |
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Join Date: Jun 2013
Location: Somewhere
Posts: 3,052
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Re: Looking for old posts on installing the np 4500.
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12-03-2020, 12:59 PM | #3 |
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Join Date: Jul 2014
Location: North-central Virginia
Posts: 1,099
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Re: Looking for old posts on installing the np 4500.
Is this a 4wd or a 2wd truck? What engine are you intending to use? I've done a fair bit of research into these transmissions.
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1987 C6P V20 truck, 2010 LMG 5.3, AFM delete, 2010 Camaro exhaust manifolds, 1997 nv4500, 1991 np241c, hydroboost, 2005 14bff axle & driveshaft, drop-n-lock gooseneck, 4.10 gears, stock suspension, rims, and tires. Still a work in progress. Any questions or suggestions are welcome! |
12-03-2020, 09:30 PM | #4 |
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Join Date: Dec 2009
Location: bisbee, arizona
Posts: 1,529
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Re: Looking for old posts on installing the np 4500.
1972 c10 long bed fleet side with a 465 in it now.
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12-03-2020, 10:56 PM | #5 |
Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,579
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Re: Looking for old posts on installing the np 4500.
Adding a od will have a effect that could be good or bad..
What are your rear gears and rear tire size? These calc will help determine highway rpms.. https://tiresize.com/chart/ http://www.csgnetwork.com/multirpmcalc.html
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Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
12-04-2020, 12:08 AM | #6 |
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Join Date: Jul 2014
Location: North-central Virginia
Posts: 1,099
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Re: Looking for old posts on installing the np 4500.
This is a bit of info I threw together to help folks make sense of the GM nv4500 transmissions. I hope you can load it without a facebook account. If you can't read it, let me know, and I'll send it directly.
https://www.facebook.com/groups/2678...07231606140004 My favorite gear ratio calculator is linked below. This calculator has three different nv4500's listed. 92-94 has different ratios. The other two are identical to each other. http://www.grimmjeeper.com/gears.html If you're running a LS engine in a lightweight truck that's used for highway cruising, you'll want to gear it so you're running 2000-2200 rpm at 70 mph. A SBC 350 would prefer a slightly lower rpm. A straight-six is much happier even lower yet. If you're doing any towing, drag racing, or just like spirited driving, you'll want higher rpms.
__________________
1987 C6P V20 truck, 2010 LMG 5.3, AFM delete, 2010 Camaro exhaust manifolds, 1997 nv4500, 1991 np241c, hydroboost, 2005 14bff axle & driveshaft, drop-n-lock gooseneck, 4.10 gears, stock suspension, rims, and tires. Still a work in progress. Any questions or suggestions are welcome! |
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