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Old 03-17-2017, 11:56 PM   #1
SunSoaked
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NV4500 conversion questions: X-member/Seat

I'm going to swapping a nv4500 into my 85 K20 that currently has a turbo 350.

I got two questions that I'm hoping someone can answer:

1. Transmission X-member-are they different? How so?
2. Does the factory floor shifter clear the bench seat?

Thanks for any help.
Mike
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Old 03-18-2017, 09:09 AM   #2
meatwagon83
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Re: NV4500 conversion questions: X-member/Seat

I just did this swap in my truck, but mine is 2wd, yes the shifter clears, I have heard that you can use the same crossmember, I did, but again, mine is 2wd
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Old 03-18-2017, 09:12 AM   #3
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Re: NV4500 conversion questions: X-member/Seat

[/URL]

Plenty of room!
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Old 03-18-2017, 10:54 AM   #4
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Re: NV4500 conversion questions: X-member/Seat

i swapped my sm465 for a nv4500..its 2 wheel drive as well..shifter clears fine and I reused my crossmember but had to move it back 1 1/2" ...which means shortening driveshafts.. measure case length of both trans to give you an idea..
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Old 03-18-2017, 01:40 PM   #5
meatwagon83
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Re: NV4500 conversion questions: X-member/Seat

I had to move my crossmember forward about 2 inches, and have my driveshaft lengthened, I went from a t400 to a nv4500 though
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Old 03-18-2017, 10:21 PM   #6
SunSoaked
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Re: NV4500 conversion questions: X-member/Seat

Thanks Meat & Mongo,

So the 4500 fit within the trans tunnel? You just had to move the shifter opening forward or back, correct?

Thanks, Mike
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Old 03-18-2017, 10:48 PM   #7
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Re: NV4500 conversion questions: X-member/Seat

Yes ..I had to move my shifter hole back from where it was original and mine has the high tunnel and it had plenty of clearance
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Old 03-18-2017, 10:54 PM   #8
SunSoaked
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Re: NV4500 conversion questions: X-member/Seat

Hey Mongo, what year is your truck? Where is your speedo gauge get fed from? Is it cable or sensor generated.
Thanks
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Old 03-18-2017, 10:58 PM   #9
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Re: NV4500 conversion questions: X-member/Seat

Gots to stuff this in here somehow. lol!
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Old 03-18-2017, 11:07 PM   #10
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Re: NV4500 conversion questions: X-member/Seat

Mines a 81..on the speedo I wanted to keep my original as my truck only had 22600 verified miles on it when I bought it a couple years back (came from local fire dept) and the trans was pulse speedo so I had to use a Dakota digital convertor box on mine.
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Old 03-18-2017, 11:08 PM   #11
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Re: NV4500 conversion questions: X-member/Seat

Good looking and clean trans and transfer you got..
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Old 03-19-2017, 08:27 AM   #12
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Re: NV4500 conversion questions: X-member/Seat

I had to put a high trans hump in mine since it was 2wd auto
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