Top loader troubles
I think a may have some issues with my 4 speed (NP435). When i got it the PO said it was stuck in 4th. Which it was. I pulled the top, played with the gears, countershafts and reset the top and it starting working fine. A few laps around the yard and clutch exploded. (i'm assuming they moved it around starting in 4th, which wore it out).
I have since replaced the clutch and it seems to be working well. My question is how much should reverse and low grind when it goes into gear (these are non-syncroed). It doesnt grind hard but it sounds like im meeting a stationary gear to a moving one and it grinds a little going in.
I'm nervous that i have not fixed the problem and something with explode if i get it going over 2nd gear.
Any thoughts would be extremely appreciated!
As for how much 1st and rev grind...I usually wait till its nearly stopped and lightly rest the lever towards the appropriate gear...until it drops...first is essentially all but at a stop when you go in it as its the stump pulling gear...
In general the NP435 is IMO an all but bulletproof gearbox...teamed with an FE...stumps lose every time without fail...
- cs65
The NP435 has two nylon inserts on each shift fork. When these crack apart, fall off, shifting can be a PITA...especially if the broken pieces get jammed up within the gear train.
2) D2TZ7C430B (replaced D2TZ7C430A) .. Insert-1st/2nd Gear Shift Fork / Obsolete
WESLEY OBSOLETE PARTS in Liberty KY has 9 = 606-787-5293.
PARTS INTERNATIONAL in Farmers Branch TX has 50 = 888-727-0418.
GREEN SALES CO. in Cincinnati OH has 99 = 800-543-4959.
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2) C2TZ7C430B (replaced C2TZ7C430A) .. Insert-3rd/4th Gear Shift Fork / Obsolete
PARTS INTERNATIONAL has 9.
WESLEY OBSOLETE PARTS has 35.
GREEN SALES CO. has 65.
I thought it killed the Engine.
Reverse & First Gear, are both Lower Gears, and are hard to get into, and maybe even impossible if your not stopped. You should usually start in Second Gear, and usually just use first for Luggin', Pullin' Towin' trailers up steep grades...etc.
Well at least I feel comfortable that it's not going to explode.
I thought double clutching only helped going from gear to gear. Most of the grinding is from intial take off.
I guess if i was rolling i could let the clutch out in neutral, get the trans up to speed and then shift into first while rolling. I bought this truck strickly for mud bogging so i have a feeling i will be using the non-syncroed section a lot.
Thanks for all the help guys!









