NP435 Grinding
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Freshman User
Joined: Jul 2002
Posts: 35
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From: Snohomish USA
NP435 Grinding
I have a 84 bronco with a NP535. At first I had to realease the clutch a little to engage 1st gear, so I replaced the clutch, pressure plate and bearing. While I had it torn apart I put in a new flywheel. It still has the same problem and now it grinds from 1st to 2nd. I notice when I down shift it will grind at 2500RPM. Is my linkage going bad? I changed the fluid when I replaced the clutch. Whats the deal?
Senior User
Joined: Jun 2002
Posts: 193
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From: Western Slope, Colorado
NP435 Grinding
I had the same problem with my NP435. The aluminum second gear synchronizer cone sheared the rivets that held it on it’s mount. This was on a Saturday, no one locally had a new one. A friend of mine at a gear shop used regular pop rivets(!) to put it back together, I was skeptical but I needed to run the truck, I ran it three years this way. A couple of months ago, when I had my engine rebuilt, I installed a rebuild kit that included new syncros, the pop riveted syncro was still holding together but was racking on the rivets a little bit.
Wes
Wes
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custom1106
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
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Mar 18, 2011 07:17 PM
1st, 2nd, 435, clutch, converting, gear, grind, grinding, grinds, hydraulic, mechanical, np, np435, synchronizer, transmission
