NP435 noisy 3rd??? - Pirate4x4.Com : 4x4 and Off-Road Forum

Coors · 06-08-2010, 04:41 PM

So i tore my np435 out today do to 3rd being excessively noisy. Upon tearing the top off and looking in side I don't see any problems yet. Need to tear down the rest of the way.

Anyone have any advise at what to look at or what might be the culprit? 3rd was really noisy.

recoiljunky · 06-08-2010, 05:41 PM

I'll be watching this thread, mine is noisy in third too.

Coors · 06-08-2010, 07:36 PM

The difference is night and day between 3rd and 4th. I know it isn't right

Coors · 06-09-2010, 01:13 PM

Anyone got any input on this????

Hillbilly Rockstar · 06-09-2010, 08:48 PM

I never rebuilt my NP435, but third gear was always noisy as hell, I wheeled the crap outta it, mud raced it for a few years, drove it everyday to work, nothing ever broke out of it. It was just noisy. Same deal in my dads '79, it was noisy for about 10 years, sold the truck, still going with the same trans. I wouldnt be too worried about it, either rebuild it, see if it changes, or throw a couple jugs of that lucas oil stabilizer stuff in there, might quiet it down some.

speed bump · 06-09-2010, 09:41 PM

I've never had one that wasn't noisy in 3rd supposedly its normal though.

Coors · 06-10-2010, 06:42 AM

well i picked up a fresh one for $150. suppost to only have 15,000 on it. couldn't really rebuild mine for that price

i did end up finding metal in trans and at least one bearing shot

06-08-2010, 04:41 PM	#1 (permalink)
Coors Registered User Join Date: Jan 2002 Member # 9381 Location: Corning, CA Posts: 758	NP435 noisy 3rd??? So i tore my np435 out today do to 3rd being excessively noisy. Upon tearing the top off and looking in side I don't see any problems yet. Need to tear down the rest of the way. Anyone have any advise at what to look at or what might be the culprit? 3rd was really noisy.

06-08-2010, 05:41 PM	#2 (permalink)
recoiljunky Registered User Join Date: Sep 2007 Member # 99761 Location: Dothan, Alabama Posts: 350	I'll be watching this thread, mine is noisy in third too. __________________ Pistol packin', Monkey drinkin', no money bum '75 Bronco with R.A.S. (Raped Ape Syndrome)

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06-08-2010, 07:36 PM	#3 (permalink)
Coors Registered User Join Date: Jan 2002 Member # 9381 Location: Corning, CA Posts: 758	The difference is night and day between 3rd and 4th. I know it isn't right

06-09-2010, 01:13 PM	#4 (permalink)
Coors Registered User Join Date: Jan 2002 Member # 9381 Location: Corning, CA Posts: 758	Anyone got any input on this????

06-09-2010, 08:48 PM	#5 (permalink)
Hillbilly Rockstar Registered User Join Date: Jul 2009 Member # 138463 Posts: 138	I never rebuilt my NP435, but third gear was always noisy as hell, I wheeled the crap outta it, mud raced it for a few years, drove it everyday to work, nothing ever broke out of it. It was just noisy. Same deal in my dads '79, it was noisy for about 10 years, sold the truck, still going with the same trans. I wouldnt be too worried about it, either rebuild it, see if it changes, or throw a couple jugs of that lucas oil stabilizer stuff in there, might quiet it down some.

06-09-2010, 09:41 PM	#6 (permalink)
speed bump Registered User Join Date: Apr 2010 Member # 157768 Location: sw montana Posts: 77	I've never had one that wasn't noisy in 3rd supposedly its normal though.

06-10-2010, 06:42 AM	#7 (permalink)
Coors Registered User Join Date: Jan 2002 Member # 9381 Location: Corning, CA Posts: 758	well i picked up a fresh one for $150. suppost to only have 15,000 on it. couldn't really rebuild mine for that price i did end up finding metal in trans and at least one bearing shot