Looking at an old NP435
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Senior User
Joined: Jul 2008
Posts: 205
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From: Las Vegas, NV
Looking at an old NP435
When you go to look at a used manual transmission, what do you check for? Should it shift into all gears w/o the clutch(if it's out of the truck)? Thanks.
Post Fiend
Joined: Dec 2007
Posts: 8,521
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From: Lost
Just the trans, or is it still bolted to an engine?
I always like to spin the input/output shafts, and shift thru all gears, listening/feeling for anything that doesn't seem right. If it's loose, flipping it on a side and getting the drain and fill plugs out to look for signs of metal shavings (within reason) is another thing I like to do, as well as a small sample of the lube.
Those checks can reveal quite a bit about the likely condition of the internals.
If it has a removable plate/shift tower, opening it up and having a peak inside can also tell a lot.
I always like to spin the input/output shafts, and shift thru all gears, listening/feeling for anything that doesn't seem right. If it's loose, flipping it on a side and getting the drain and fill plugs out to look for signs of metal shavings (within reason) is another thing I like to do, as well as a small sample of the lube.
Those checks can reveal quite a bit about the likely condition of the internals.
If it has a removable plate/shift tower, opening it up and having a peak inside can also tell a lot.
Super Moderator
Joined: Apr 2004
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Some info to make sure of which flavor it is, if you have any doubt:
The New Process 435 Transmission - Novak Conversions
The New Process 435 Transmission - Novak Conversions
