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- - New transmission (https://67-72chevytrucks.com/vboard/showthread.php?t=587994)

1972GMCsierra4x4

07-09-2013 07:51 PM

New transmission

I was wondering if anyone out there has installed a 5 or 6 speed manual in their 4x4. I got the idea the other day of putting one in my '72 K2500 so my highway RPMs wouldn't be so high. Any information would be very helpful.
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1972RedNeck

07-09-2013 08:58 PM

Re: New transmission

Maybe you should take a look at the ranger overdrive unit.

1972GMCsierra4x4

07-09-2013 10:14 PM

Re: New transmission

I looked at the ranger a lot, the only problem is my factory center console. I think I'd have to take it out because of my transfer case shifter getting moved back for a ranger overdrive.
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1972GMCsierra4x4

07-09-2013 10:16 PM

Re: New transmission

Also, the nv4500, which was GMs 5 speed truck tranny in the 90s, has a .73 top gear ratio, which is the same as what a ranger would give me
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mcmlxix

07-10-2013 12:49 AM

Re: New transmission

There are two thread about this swap... just do a search for NV4500.. Polar Suburban is one swap and a member called SunSoaked is doing the other....

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