05-26-2021, 06:05 PM | #1 |
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PTO swap question
I am putting a nv4500 in my 1980 1 ton. I swapped the unit from the old 465. Problem is, the nv4500 housing is larger and will not allow the drive shaft to bolt up to the pto. Do they make different PTO units that space this out farther? Is there a different solution?
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05-26-2021, 06:35 PM | #2 |
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Re: PTO swap question
I will admit, I didn't think the pto units would be compatible between a sm465 and a nv4500. Make sure that the gears are definitely compatible before you run it, otherwise you'll ruin both the transmission and the pto unit.
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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! |
05-26-2021, 10:26 PM | #3 |
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Re: PTO swap question
yes they take different internal gears. and they have different offset housings as well. also depends on what year your nv4500 is. the early and late ones take a different gear too. one is 25 teeth I believe and the other is 30, due to the different 1st ratio. I have one off a 92-93 nv4500 here, but its only touching half of the tooth as it needs a 30 tooth gear in it. I was mocking it up to see if it would work but it won't.
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05-27-2021, 05:29 AM | #4 |
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Re: PTO swap question
I'm not positive on the year of transmission. Tag on top, correct?
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05-27-2021, 07:01 AM | #5 |
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Re: PTO swap question
Shifter tower style help id it .
Early is pop in like 465 Late is 4 bolt newer style . As said you NEED the correct pto parts for the change over from trans to trans .
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05-27-2021, 09:08 AM | #6 |
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Re: PTO swap question
The shifter itself is not bolted in, it's like the 465
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05-27-2021, 05:51 PM | #7 |
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Re: PTO swap question
Wow, I must have been lucky!
Almost 40 years ago I bought a PTO out of the junkyard and slapped it on an SM420 and it worked just fine
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Current/past Chevy/GMC trucks: 1958 Chevy C-60; 1965 GMC C-50; 1965 Chevy C-10; 1971 Chevy K-10; 1973 Chevy K-20; 1976 GMC C-20; 1977 Chevy C-10 Suburban; 1980 Chevy K-10; 1989 Chevy K1500; 1991 GMC V1500 Suburban; 2016 Chevy K2500 HD Other vehicles: 1988 Jeep XJ; 2011 Toyota 4Runner |
06-27-2021, 06:30 PM | #8 | |
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06-29-2021, 09:39 PM | #9 |
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Re: PTO swap question
Sure
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06-30-2021, 01:09 AM | #10 |
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Re: PTO swap question
I've got a brand new PTO and kit for an early 4500 that I never used. Current orientation is Left side rear facing. I was going to install the 4500 in my tow truck replacing the 465, but I ended up selling the truck before install.
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06-30-2021, 07:29 AM | #11 |
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Re: PTO swap question
If it was a late 4500, I'd be quite interested in that. Where do you go to buy a new pto kit?
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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! |
06-30-2021, 11:25 AM | #12 |
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Re: PTO swap question
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06-30-2021, 02:15 PM | #13 |
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Re: PTO swap question
I bought one from a local truck supply house
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