nv4500 problems - Page 2 - Dodge Cummins Diesel Forum
94-98 Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect...NO ADVERTISING

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post #13 of 16 (permalink) Old 09-29-2017, 08:35 PM
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Most dodge dealers keep the synotorque in stock. Just give them the molar number I posted earlier and they can get it either way. It's expensive but worth the pain of replacing syncros if you use the wrong stuff. I've seen the aftermath of having amsoil in these transmissions for a relatively short amount of time. Not worth the lower cost or availability of other "equivalent" oils


1996 2500 ECLB, NV4500, 4X4
Engine: 24 Valve P-Pump Swapped,
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, Adj. Timing Gear @ 20*, Haisley L19 studs, DAP 3 Piece Mani, Fluidampr, Southbend DD3250, 5" Exhaust+FTE Resonator
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post #14 of 16 (permalink) Old 09-29-2017, 10:28 PM
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Quote:
Originally Posted by austinl517 View Post
its side to side and up and down but not in and out. I can move it all the way to the edges of the collar though. as far as the syntorque goes I've done a lot of looking around and it seems like castrol discontinued it as you can't even find it on their website directly let alone anywhere else. I know you can get the gm equivalent at dealerships but from as much looking around as I've done people recommended amsoil or gm mostly.


That much side play might have something to do with a bad pilot bearing between the input and the main shaft. Or a broken main shaft. Which would explain the hard shifting. Ask me how I know


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post #15 of 16 (permalink) Old 09-29-2017, 11:20 PM Thread Starter
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hoping to get some time this weekend to tear this sucker down and get abetter idea of whats wrong. wiggling the input shaft with the top cover off I can definitely see a lot of movement which has me thinking it's a bearing issue. shopping around it seems like I can get a bearings,synchros,seals rebuild kit for about $160, or I can also get all that plus an updated fully splined mainshaft for $320. Wondering if it's with the extra coin considering I already has an upgraded 5th gear nut

96 12 valve nv4500 swap with updated mainshaft, 1 3/8 input shaft, valair dual disk clutch, 2wd, 0 fuel plate, adjustable boost elbow, kdp fix, pillar gauges, fass 125 w/ 1 bolt sump, 60lb valve springs, 4k gov springs, arp head studs, 180 P pump slightly turned up
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post #16 of 16 (permalink) Old 09-30-2017, 12:51 AM
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Any "upgraded" nut is a half-azzed fix. A fully splined shaft is a good investment.
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97 3500, 2 WD, G56, slightly bombed, 1.3 million miles. Started the second million on 8/24/13
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