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Old June 4th, 2016, 11:13 PM
Chuck78 Chuck78 is offline
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Default Re: NV4500 vs AX15/AR5

AX15 Gear ratios are:
3.83 / 2.33 / 1.44 / 1.00 / 0.79
(1st can be swapped to 4.31 & 5.15, od to .83)
(All gears can be swapped from the g452 Toyota Dyna truck transmission to get:
5.15 / 2.74 / 1.93 / 1.00 / 0.83 // reverse 5.04 / ***Dyna is an international model, unsure of US version)
It weighs approximately 96lbs.

NV4500 Gear ratios from 1995+ are:
5.61 / 3.04 / 1.67 1 / .74 // Reverse 5.61
(93-94 had a 6.34:1 1st & non- synchronized reverse)
It's weight is 195lbs.

There are zero used Dodge gasoline 2wd versions of this on eBay currently. There is one company selling modified remanufactured units at $1,000 plus a $500 core charge, plus shipping.
So you can pretty much plan on this costing you about $1,700 plus the adapter from Novak. $2,000 basically if you want an already modified and rebuilt NV4500. You spend $500 less than a brand-new TKO 500 to get a deep granny gear heavy duty truck transmission basically, $500-700 more for the TKO500 get you a brand new transmission with no adapter and more sporty ratios, and more flexibility in the shifter location.
Certainly you could find a used Dodge gasoline 2wd nv4500 and rebuild & modify it yourself and save at least $500

There's apparently a design flaw with fifth gear in particular, slightly with 4th, and that there is excessive wear on some internal shaft parts. There are several fixes for this problem, and the eBay auction that I reference the price on states that they upgrade several parts internally including a fix for this problem.

Last edited by Chuck78; June 4th, 2016 at 11:18 PM.
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