4 speed help
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Junior User
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4 speed help
Well i just recently blew 1st an reverse out of my 79 250 4x4 married np205 351m. If anyone can help me find out from what year to what year 4speed's directly bolt up in there.. It would be awsome also about how much i should pay for it. and Should i just get it rebuilt and save future hassel? and how much for a rebuild.
thanks again folks
bill C
ps the truck still got me up the huge steep hill of bolders and loose dirt in 2nd/4low and home again ! gotta be happy bout that haha
thanks again folks
bill C
ps the truck still got me up the huge steep hill of bolders and loose dirt in 2nd/4low and home again ! gotta be happy bout that haha
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
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From: Simi Valley, CA
Originally Posted by Big billy C
Well i just recently blew 1st an reverse out of my 79 250 4x4 married np205 351m. If anyone can help me find out from what year to what year 4speed's directly bolt up in there.. It would be awsome also about how much i should pay for it. and Should i just get it rebuilt and save future hassel? and how much for a rebuild.
thanks again folks
bill C
ps the truck still got me up the huge steep hill of bolders and loose dirt in 2nd/4low and home again ! gotta be happy bout that haha
thanks again folks
bill C
ps the truck still got me up the huge steep hill of bolders and loose dirt in 2nd/4low and home again ! gotta be happy bout that haha
How to tell the dif, without crawling under.
Look at how the shift lever attaches to the shift tower.
The Warner uses a shift lever retaining cap that threads on/off.
The NP 435 uses a notched cap that twists on/off by a 1/4 turn. This cap is retained to the shift tower by two pins.
All this is visible from inside the cab.
FYI: If you have the NP 435 type, the notched retaining cap is a POS.
The two notches tear apart, because when you go to remove the shift lever, you need to press down on the cap while it's being turned.
It's still available from Ford in case you ever need one: B8T-7220-D.
btw: I'm going to be gone for several hours, so somone else will prolly assist you once the trans type is known.
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I just checked it out. and its the NP435 4 speed type, with the two pins one on eather side of the shifter tower. Now What would a rebuild cost. (i would take it out and put it back in) And would a rebuilt NP435 withstand 38'' tires and 450 horse/torque? and If not what would i have to "soup up " internally?
thanks again
bill C
thanks again
bill C
Postmaster
Joined: Dec 2002
Posts: 3,594
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From: Southern Oregon USA
THe best way to tell a 435 from a T18 is that the 435 has an aluminum shift tower.
You really won't know how much its going to cost to rebuild until you get it apart and figure out what has failed and what hard parts you may need.
The standard 435 rebuild kit with bearings, gaskets and seals will run about $125. If you need synchro assys, shafts or gears, most everything is available. Off the top of my head, figure $200-300 for labor. Worst case, you can buy a rebuilt for under $700.
There's not much you can do to modify the 435 for more abuse. They are already built pretty bulletproof. It will take a good amount of torque and horsepower and will stand up to almost any abuse you can give it.
Jason
You really won't know how much its going to cost to rebuild until you get it apart and figure out what has failed and what hard parts you may need.
The standard 435 rebuild kit with bearings, gaskets and seals will run about $125. If you need synchro assys, shafts or gears, most everything is available. Off the top of my head, figure $200-300 for labor. Worst case, you can buy a rebuilt for under $700.
There's not much you can do to modify the 435 for more abuse. They are already built pretty bulletproof. It will take a good amount of torque and horsepower and will stand up to almost any abuse you can give it.
Jason
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Ok well then 700 ish american would be under $1000 CND and i could come up with that. Before it broke , while in 1st and in reverse it whined really laud at any rpm. Could that have bin the sound of it wearing out. i know there'd be some gear noise with how stout it is to begin with but would be a sign wear? It used to have the tendancy to slam out of first. and now if i hold it hard in 1st. or reverse it just barely moves then bang!
p.s. anyone know if i can drop it out as a unit like unbolt it from the bellhausing and the tcase and just drop it out? Whats the easiest way to do it?
thanks
bill C
p.s. anyone know if i can drop it out as a unit like unbolt it from the bellhausing and the tcase and just drop it out? Whats the easiest way to do it?
thanks
bill C
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Postmaster
Joined: Dec 2002
Posts: 3,594
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From: Southern Oregon USA
Originally Posted by Big billy C
Ok well then 700 ish american would be under $1000 CND and i could come up with that. Before it broke , while in 1st and in reverse it whined really laud at any rpm. Could that have bin the sound of it wearing out. i know there'd be some gear noise with how stout it is to begin with but would be a sign wear? it would have the tendancy to slam out of first. and now if i hold it hard in 1st. or reverse it just barely moves then bang!
Jason
Carpenter Local 745
Joined: Apr 2006
Posts: 5,794
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From: on da beach
I got this going for you too on your tranny, it is in the 4x forum.
https://www.ford-trucks.com/forums/7...-tranny-s.html
https://www.ford-trucks.com/forums/7...-tranny-s.html
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haha i got no idea. i just clicked on the 73 to 79 truck forem. I'm in Hope if you or anyone esle is around there i got the big truck with the Ambulance cross on the doors haha. ( been there since new former mobile first aid for Alison pass logging )
