What transmission should I use? - Page 2 - Ford Truck Enthusiasts Forums

Notices

What transmission should I use?

  #16  
Old 01-13-2019, 05:23 PM
moroza's Avatar
moroza
moroza is offline
Junior User
Thread Starter
Join Date: May 2016
Posts: 92
moroza is starting off with a positive reputation.
Originally Posted by fordman75 View Post
...
You're thinking the NV3500 or NV4500. One had a fifth gear issue and neither have good gearing for me. NV3550 is a Jeep transmission, rated for 300ft-lb, perfect ratios, and supposedly reliable, just not sure about it holding up with this kind of weight. Novak's (or Advance Adapters') kit would use my current bellhousing and clutch setup. Custom driveshaft is a given in any scenario.

Originally Posted by NumberDummy View Post
What engine mounting system uses 4 mounts (rubber insulators)?
Some VW aircooled setups, but I meant four powertrain mounts, that is, two at the engine and two at the back of the trans. Not sure about Ford trucks but this is a typical setup for smaller vehicles.

Originally Posted by FuzzFace2 View Post
With any of the swaps I am seeing you will need to over come the motor / bell housing mounting unless you stay with what you have and add the OD unit on the back side.
NV3550 kit would let me keep the bellhousing and therefore the mounting. I might want to add a mount to the trans rear - not sure if it'll like being cantilevered like the NP435 - but not having to mess with current mounts is one of the advantages to this setup.

Now what I have not heard of any one say is of the autos that can be used. You would not have a shifter in the middle of the floor, a cable type can be mounted anywhere.
They make C6 that bolt to the 300 and being anon-OD trany you would need to bolt the GV unit on the back side and once over 30 MPH you can split gears.
You also have the AOD and AODE both have over drive the "E" being electric and needs a controller box to run it but is used it heaver trucks.
Just something to think about.
Dave ----
It'd solve the shifter problem, but I can't stand automatics, no way no how.
 
  #17  
Old 01-13-2019, 05:37 PM
FuzzFace2's Avatar
FuzzFace2
FuzzFace2 is offline
Post Fiend
Join Date: Nov 2015
Location: Angier, NC
Posts: 8,726
FuzzFace2 has a great reputation on FTE.FuzzFace2 has a great reputation on FTE.FuzzFace2 has a great reputation on FTE.FuzzFace2 has a great reputation on FTE.FuzzFace2 has a great reputation on FTE.FuzzFace2 has a great reputation on FTE.
Ok on the auto just wanted to throw it out there is all.
It would be nice if you did not need to mess with the stock mounts.
Does the NV3550 let you keep the stock bell housing & mounts? If so and the NV has a mount on the back you could add another cross member and rubber mount to support that heavy sucker!
Good luck I will be following to see what you come up with.
Dave ----
 
  #18  
Old 01-13-2019, 08:11 PM
85e150six4mtod
85e150six4mtod is online now
Moderator
Join Date: Apr 2004
Posts: 21,409
85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation85e150six4mtod has a superb reputation
I think the OP has a good answer in the 3550. They were used in 1/2 tons with V8s, and if it is used conservatively in his rig he should be OK. Plus it's not a lot of money vs. an aftermarket OD etc. Keeps his bell and clutch.

That's where I would focus some attention at this point.
 
  #19  
Old 01-13-2019, 10:47 PM
fordman75
fordman75 is online now
Postmaster
Join Date: Dec 2000
Location: South central, Minnesota
Posts: 4,914
fordman75 is a splendid one to beholdfordman75 is a splendid one to beholdfordman75 is a splendid one to beholdfordman75 is a splendid one to beholdfordman75 is a splendid one to beholdfordman75 is a splendid one to behold
Originally Posted by FuzzFace2 View Post

Have you looked into how hard it is to find a used Brownie? I hear they can be hard as they don't make them any more.

Now what I have not heard of any one say is of the autos that can be used. You would not have a shifter in the middle of the floor, a cable type can be mounted anywhere.
They make C6 that bolt to the 300 and being anon-OD trany you would need to bolt the GV unit on the back side and once over 30 MPH you can split gears.
You also have the AOD and AODE both have over drive the "E" being electric and needs a controller box to run it but is used it heaver trucks.
Just something to think about.
Dave ----
They are still around. They were used in a lot of old grain trucks. And those trucks are still being used, sitting on farms, out in fields and also in the truck salvage yards. And there is usually 3 or 4 Spicer/Brownie boxes on Ebay as a last resort. It seems like they pop up in waves. You won't see them for a while and then a bunch of them get listed. I was just watching a couple listings. One was the Brownie and the other was all the shifter parts.


Autos suck! That's why I didn't mention them. In a heavy vehicle that tows, they just don't have a steep enough 1st gear. They are also heavy, power robbers that cause the engine/cooling systems to run hotter. Behind a stock 300 it would make it absolutely miserable. Right now I own two 351W powered vans one a E250 ( E4OD ) and one E350 ( C6 ) . I'm going to be swapping them both out for manual transmissions. Most likely both NP435's.








Originally Posted by moroza View Post
You're thinking the NV3500 or NV4500. One had a fifth gear issue and neither have good gearing for me. NV3550 is a Jeep transmission, rated for 300ft-lb, perfect ratios, and supposedly reliable, just not sure about it holding up with this kind of weight. Novak's (or Advance Adapters') kit would use my current bellhousing and clutch setup. Custom driveshaft is a given in any scenario.

NV3550 kit would let me keep the bellhousing and therefore the mounting. I might want to add a mount to the trans rear - not sure if it'll like being cantilevered like the NP435 - but not having to mess with current mounts is one of the advantages to this setup.


It'd solve the shifter problem, but I can't stand automatics, no way no how.
Thanks, you are right. That's the one I was thinking of. The one that came in the trucks. The NV3550 was the one that likes to pop out of 5th gear though. I do remember that. But there was also a fix for that too, I just can't remember what it was. As long as you aren't doing clutch dumps or power shifts with it I would think it should hold up. It sounds like the NV3550 would be the simplest solution. I have no clue what they usually sell for. So I can't say if it's the cheapest solution.

Your NP435 doesn't have a rear mount?? I know that mount set up in the older trucks didn't have any transmission mounts. But those were usually much smaller transmissions. The NP435 is a heavy chunk of cast iron hanging off that bellhousing! Those bells are a beast but I think I would still add a transmission X-member. Even if you just stayed with the NP435( which I know you aren't keeping it ) .

I like how you think about those autos!!!!




Originally Posted by 85e150six4mtod View Post
I think the OP has a good answer in the 3550. They were used in 1/2 tons with V8s, and if it is used conservatively in his rig he should be OK. Plus it's not a lot of money vs. an aftermarket OD etc. Keeps his bell and clutch.

That's where I would focus some attention at this point.
Yep the NV3550 is looking like the right choice for him.
 
  #20  
Old 01-14-2019, 02:14 AM
NumberDummy's Avatar
NumberDummy
NumberDummy is online now
Ford Parts Specialist
Join Date: Nov 2006
Location: Simi Valley, CA
Posts: 80,145
NumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputationNumberDummy has a superb reputation
Originally Posted by fordman75 View Post
Your NP435 doesn't have a rear mount?? I know that mount set up in the older trucks didn't have any transmission mounts. But those were usually much smaller transmissions. The NP435 is a heavy chunk of cast iron hanging off that bellhousing! Those bells are a beast but I think I would still add a transmission X-member. Even if you just stayed with the NP435 (which I know you aren't keeping it ).
OP's P series has two rear mounts per side. See lower pic in post #8.
 
  #21  
Old 01-14-2019, 05:09 AM
fordman75
fordman75 is online now
Postmaster
Join Date: Dec 2000
Location: South central, Minnesota
Posts: 4,914
fordman75 is a splendid one to beholdfordman75 is a splendid one to beholdfordman75 is a splendid one to beholdfordman75 is a splendid one to beholdfordman75 is a splendid one to beholdfordman75 is a splendid one to behold
Originally Posted by NumberDummy View Post
OP's P series has two rear mounts per side. See lower pic in post #8.
Yes Bill, I know it has the mounts on the bell housing ( clutch housing ) on each side. I consider those rear engine mounts. How about on the tailshaft housing of the transmission like I was talking about in the post you quoted me from? I like having some support at the rear of the transmission too. Not just have all that weight of the NP435 hanging off 4 bolts in the bell housing.
 
  #22  
Old 01-15-2019, 10:51 AM
tinman52
tinman52 is offline
Welder User
Join Date: Feb 2009
Location: northwest MT
Posts: 5,251
tinman52 has a superb reputationtinman52 has a superb reputationtinman52 has a superb reputationtinman52 has a superb reputationtinman52 has a superb reputationtinman52 has a superb reputationtinman52 has a superb reputationtinman52 has a superb reputationtinman52 has a superb reputationtinman52 has a superb reputationtinman52 has a superb reputation
FWIW, I have the Ranger OD in my COE behind a mildly hopped up 300. This is a fairly heavy truck on a dually one ton chassis. I haven't weighed it, but I'd guess 5k at least.
The Ranger works great with my T18 BW trans, 8 forward 2 reverse gears, Rear ratio is 4.10.
I tow with it occasionally, and the split gearing really helps. BUT, even with the engine mods, my truck is underpowered with a heavy load. It'll pull it, but has to work pretty hard and mpg goes down dramatically.
I have to wonder if a 300 six w/a manual trans is the best power train for your heavy MH?
 
  #23  
Old 01-15-2019, 02:49 PM
moroza's Avatar
moroza
moroza is offline
Junior User
Thread Starter
Join Date: May 2016
Posts: 92
moroza is starting off with a positive reputation.
Originally Posted by tinman52 View Post
I have to wonder if a 300 six w/a manual trans is the best power train for your heavy MH?
Ah, the elephant in the room has been introduced! No, of course not; that would be an Isuzu 6BD. I have nowhere near the time, budget, and workspace to make that happen, though a lesser conversion - such as a 6.9/7.3 IDI - might be doable, at least regarding cost. It'd also come with different trans options; the IDI will natively take the ZF with a Correct slave cylinder. On the other hand, towing would be an occasional requirement at most, the 6k towing budget is generous (more likely flat-tow a 2k Geo Metro, than a 4k car/pickup + 2k trailer), and at current weight - guessing 7000lb - it's surprisingly adequate.

Originally Posted by fordman75 View Post
Yes Bill, I know it has the mounts on the bell housing ( clutch housing ) on each side. I consider those rear engine mounts. How about on the tailshaft housing of the transmission like I was talking about in the post you quoted me from? I like having some support at the rear of the transmission too. Not just have all that weight of the NP435 hanging off 4 bolts in the bell housing.
Since the engine and trans are bolted together and neither can sit on its own, I consider all those "powertrain mounts". And yep, the ~135lb NP435, plus a ~15lb driveline brake and the front half of the driveshaft, are all just dangling off the bellhousing. Have been since 1973.
Thanks, you are right. That's the one I was thinking of. The one that came in the trucks. The NV3550 was the one that likes to pop out of 5th gear though. I do remember that. But there was also a fix for that too, I just can't remember what it was. As long as you aren't doing clutch dumps or power shifts with it I would think it should hold up. It sounds like the NV3550 would be the simplest solution. I have no clue what they usually sell for. So I can't say if it's the cheapest solution.
$1-1.5k rebuilt, $150 if I get lucky at Picknpull. Weight is weight, but I am a pretty gentle manual driver. My '81 Toyota's L52 is weaksauce that won't hold 200ft-lb, but I've had it for nearly 7 years and repeatedly towed 5000-6500 GCW (truck is ~3100 empty).
 
  #24  
Old 01-15-2019, 09:46 PM
fordman75
fordman75 is online now
Postmaster
Join Date: Dec 2000
Location: South central, Minnesota
Posts: 4,914
fordman75 is a splendid one to beholdfordman75 is a splendid one to beholdfordman75 is a splendid one to beholdfordman75 is a splendid one to beholdfordman75 is a splendid one to beholdfordman75 is a splendid one to behold
Originally Posted by moroza View Post
Ah, the elephant in the room has been introduced! No, of course not; that would be an Isuzu 6BD. I have nowhere near the time, budget, and workspace to make that happen, though a lesser conversion - such as a 6.9/7.3 IDI - might be doable, at least regarding cost. It'd also come with different trans options; the IDI will natively take the ZF with a Correct slave cylinder. On the other hand, towing would be an occasional requirement at most, the 6k towing budget is generous (more likely flat-tow a 2k Geo Metro, than a 4k car/pickup + 2k trailer), and at current weight - guessing 7000lb - it's surprisingly adequate.



Since the engine and trans are bolted together and neither can sit on its own, I consider all those "powertrain mounts". And yep, the ~135lb NP435, plus a ~15lb driveline brake and the front half of the driveshaft, are all just dangling off the bellhousing. Have been since 1973.



I'm actually building a 300 to swap into my 89 E350 extended van in place of it's 351W. My van with tools and supplies will tip the scales at close to 8,000 pounds. And I will also be towing a 20' foot car trailer with it. I'm not worried at all about a lack of power. I'm building the engine and the van to handle it. If you have interest in the IDI's I've got a 91 F-Super Duty( F450 ) truck with a just over 14' flat bed. I'd be willing to sell/part out. It's got the 7.3L IDI with the ZF 5spd with the driveline brake and 5.13 geared disc brake 10 lug Dana 80 rear axle. It has a professionally rebuilt injector pump, new injectors, new motorcraft glow plugs, new return line kit with Viton O-rings, a carrier electric fuel pump and a new DB electrical starter. The city I live in passed an ordinance that made it illegal to park it at my house. So now I'm having to pay to store it else where. So it's not getting used and now has brake issues from it sitting. So this spring/summer I'm probably going to fix the brakes and try to sell the truck. It would be a great drivetrain donor.



Oh believe me I know all about the weight of the NP435's. When I was younger and dumber I pulled and installed a few of those laying on my back under trucks with no jacks. I also have 7 or 8 NP435's sitting in the back of my garage. So I've had to move them around plenty. They just happen to be my favorite transmission. Tough as nails, very simple to work on and dirt cheap. That's why eventually both of my automatic equipped vans will get one swapped in. I know with what I tow/pull and the way I drive stuff the mount set up like yours would lead to broken parts. Personally I'd rather add more support then break something. But it sounds like you are much easier on your stuff.
 


Thread Tools
Search this Thread

Contact Us About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.