Tranny
Senior User
Joined: Mar 2004
Posts: 117
Likes: 0
From: Portland, OR
Well, I'm far from an expert on the subject, but I can tell you what I have.
I usually have only heard good things about the NP435. It's still a popular transmission for off roaders.
I believe it came in the 2 wheels drives as well as 4x4's.
After many years of excellent service I just rebuilt my NP435 (4 speed).
It's one tough tranny, but I've never abused it and the super low granny gear is nice when you have to pull the occasional U-Haul truck out of the ditch!
The only thing I replaced on it was the input shaft - it was starting to look a little twisted and cracked (probably from when I was pulling the large truck out of the ditch).
The 360 or 390/NP435 was a pretty common package for these trucks so you should have no problem finding the right bellhousing to mate up to the engine with. (I saw a half dozen of them in the junkyard this last weekend).
I've always preferred a manual transmission over an auto, especially in a truck. You've got more control when loading it up, it's tougher and there are less components to bust. I shudder at the thought of having to deal with column linkage. What could be more simple than the tranny shifter sticking directly up through the floor?
Cheers, and keep me posted as to what you decide.
I usually have only heard good things about the NP435. It's still a popular transmission for off roaders.
I believe it came in the 2 wheels drives as well as 4x4's.
After many years of excellent service I just rebuilt my NP435 (4 speed).
It's one tough tranny, but I've never abused it and the super low granny gear is nice when you have to pull the occasional U-Haul truck out of the ditch!
The only thing I replaced on it was the input shaft - it was starting to look a little twisted and cracked (probably from when I was pulling the large truck out of the ditch).
The 360 or 390/NP435 was a pretty common package for these trucks so you should have no problem finding the right bellhousing to mate up to the engine with. (I saw a half dozen of them in the junkyard this last weekend).
I've always preferred a manual transmission over an auto, especially in a truck. You've got more control when loading it up, it's tougher and there are less components to bust. I shudder at the thought of having to deal with column linkage. What could be more simple than the tranny shifter sticking directly up through the floor?
Cheers, and keep me posted as to what you decide.
Senior User
Joined: Sep 2008
Posts: 311
Likes: 1
From: Waterdown, Ont.
Fornatic,
I have a 72 F250 with a 360 mated to a T-18 4speed manual with a granny low. It does the job nicely. As Jackslater says, the New Process 435 is also a good option. As for what Ford offered in that year, the man you want to talk to is NumberDummy. You have several options, and you can't go wrong with what's already been suggested.
Keep on truckin'
John
I have a 72 F250 with a 360 mated to a T-18 4speed manual with a granny low. It does the job nicely. As Jackslater says, the New Process 435 is also a good option. As for what Ford offered in that year, the man you want to talk to is NumberDummy. You have several options, and you can't go wrong with what's already been suggested.
Keep on truckin'
John
Thread Starter
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New User
Joined: Aug 2010
Posts: 8
Likes: 0
Thanks. Any other options, let me know please. By the way, on that t18, do I need any special adapter or does it just bolt rite up?
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Senior User
Joined: Sep 2008
Posts: 311
Likes: 1
From: Waterdown, Ont.
Fornatic,
You will need the proper bellhousing to mate the 360 to the t-18. The bellhousing for the auto transmission will not work as far as I know. Again, ND, or any number of folks on this site will help you id the correct bellhousing.
Good luck,
John
You will need the proper bellhousing to mate the 360 to the t-18. The bellhousing for the auto transmission will not work as far as I know. Again, ND, or any number of folks on this site will help you id the correct bellhousing.
Good luck,
John
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Senior User
Joined: Sep 2008
Posts: 311
Likes: 1
From: Waterdown, Ont.
These trucks have the aerodynamics of a barn. That being said, they're a lot more fun. And that's really what it's all about.
Keep on truckin'
John
Senior User
Joined: Sep 2008
Posts: 311
Likes: 1
From: Waterdown, Ont.
Jackslater,
Remember, thats highway miles at 55 mph. Around town it's more like 11ish. I just finished a trip from Vancouver, BC to Waterdown, Ontario. 3,123 miles across the northern states. Bed was loaded with all my tools, my motorcycle, all my stuff, etc. And I still managed 15.5 over those 3000 miles. I thought that was pretty good, too, as I had guesstimated 10 mpg so I could figure my cost of gas and not get stuck halfway back. All in all, I was pleasantly surprised. Best of all, I actually like rollin at 55, cause I can really see stuff at that speed...
Regards,
John
PS. In Canada, gas is sold by the litre. In Vancouver it was 1.18 per litre when I left. As I rolled into Washington state, the gallon converted into 73 cents a litre. That makes a huge difference when you're traveling 3000 miles. The whole trip cost me $604.65 in gas, and $60.00 for a motel one night. Rest of the time, I slept in the cab - usually at rest stops, but not always. 5 days of fun!
I've done it before, and I'd do it again - I love traveling across the states, it is truly a beautiful place...
Remember, thats highway miles at 55 mph. Around town it's more like 11ish. I just finished a trip from Vancouver, BC to Waterdown, Ontario. 3,123 miles across the northern states. Bed was loaded with all my tools, my motorcycle, all my stuff, etc. And I still managed 15.5 over those 3000 miles. I thought that was pretty good, too, as I had guesstimated 10 mpg so I could figure my cost of gas and not get stuck halfway back. All in all, I was pleasantly surprised. Best of all, I actually like rollin at 55, cause I can really see stuff at that speed...
Regards,
John
PS. In Canada, gas is sold by the litre. In Vancouver it was 1.18 per litre when I left. As I rolled into Washington state, the gallon converted into 73 cents a litre. That makes a huge difference when you're traveling 3000 miles. The whole trip cost me $604.65 in gas, and $60.00 for a motel one night. Rest of the time, I slept in the cab - usually at rest stops, but not always. 5 days of fun!
I've done it before, and I'd do it again - I love traveling across the states, it is truly a beautiful place...
Senior User
Joined: Sep 2008
Posts: 311
Likes: 1
From: Waterdown, Ont.
Fornatic,
What is your rear diff ratio? Going lower numerically (ie, from say, 4.10 down to 3.5, or 3.00 will lower your engine revs, and thereby lower your gas consumption. My old 77 with a straight six and rear diff ratio of 3.00 to 1 got excellent (by the standards of the day) gas mileage. What is your truck running now?
Regards,
John
What is your rear diff ratio? Going lower numerically (ie, from say, 4.10 down to 3.5, or 3.00 will lower your engine revs, and thereby lower your gas consumption. My old 77 with a straight six and rear diff ratio of 3.00 to 1 got excellent (by the standards of the day) gas mileage. What is your truck running now?
Regards,
John
Thread Starter
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New User
Joined: Aug 2010
Posts: 8
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I have no idea. I bought it about a week ago. Completly stock f250 2wd with 360 and 3 speed auto. I don't really want to mess with the ratio cause I was planing on a crown vi front suspension and rear axle
Junior User
Joined: Nov 2009
Posts: 52
Likes: 0
From: Spring branch
fF it's a 9 inch should be a tag attached to one of the bolts on the third member to tell you the ratio... if your pushing 3000 rpm's at 50 it's probably got 4.10's or 4:56'S...2 ways to go if you don't want to mess with gearing. An overdrive manual tranny (which a 435 ain't) or way taller tires