NP445, anyone?
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More Turbo
Joined: Sep 2003
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NP445, anyone?
Also known as the New Process 4530, this four speed transmission has a 4.56 First gear and is fully synchronized, I believe. Pulling mountain passes in my '77 F150 with the 400, it is uncomfortable to shift down into Third with its very big gap from Fourth. The 5 speeds have the same issue. I am looking at the New Process 445 or 4530 which has a much shorter gap between Third and Fourth. This transmission appeared in '70s Dodges. Has anyone attempted to use this tranny in place of a NP435? I'm looking mostly at the bellhousing side of things.
Thanks,
R.
Thanks,
R.
Lead Driver
Joined: Nov 2006
Posts: 5,217
Likes: 506
From: Pa.
Also known as the New Process 4530, this four speed transmission has a 4.56 First gear and is fully synchronized, I believe. Pulling mountain passes in my '77 F150 with the 400, it is uncomfortable to shift down into Third with its very big gap from Fourth. The 5 speeds have the same issue. I am looking at the New Process 445 or 4530 which has a much shorter gap between Third and Fourth. This transmission appeared in '70s Dodges. Has anyone attempted to use this tranny in place of a NP435? I'm looking mostly at the bellhousing side of things.
Thanks,
R.
Thanks,
R.
Moderator & parts slinger
Joined: Feb 2007
Posts: 50,263
Likes: 5,822
From: S/W Missouri, Polk county
And once you figure that out, check out Advanced Adapters, they pretty much have whatever needed to match a whatever trans to a whatever motor.
Also you might have to figure out output yokes, and that leads to a possibly of an odd u joint and then maybe a d/s length change.
https://www.advanceadapters.com/
Also you might have to figure out output yokes, and that leads to a possibly of an odd u joint and then maybe a d/s length change.
https://www.advanceadapters.com/
Thread Starter
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More Turbo
Joined: Sep 2003
Posts: 516
Likes: 27
Thanks, guys,
There is a 1 7/8" difference between the Ford and Dodge input shafts, also the bolt pattern of Ford and Dodge differ. I'll have much better luck putting the NP445 behind a 318. But further research indicates the early '80s 460 pickups used a B-W T19 with gear ratios similar to the 445. Maybe I need to start looking for one of those.
R.
There is a 1 7/8" difference between the Ford and Dodge input shafts, also the bolt pattern of Ford and Dodge differ. I'll have much better luck putting the NP445 behind a 318. But further research indicates the early '80s 460 pickups used a B-W T19 with gear ratios similar to the 445. Maybe I need to start looking for one of those.
R.
Laughing Gas
Joined: Aug 2010
Posts: 983
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From: Colorado Springs CO
FTE Legend
Joined: Nov 2015
Posts: 30,960
Likes: 4,129
From: Angier, NC
The NP435 and the BW T18 do not have the first gear synchronized, only the BW T19 has the first gear synchronized.
From what I have seen the T19 was used behind the 460 and the diesel motors in the later (80's) years.
The T18 my truck (81 F100 w/300 six) came with was in pretty bad shape and did not put a lot of miles on it till I swapped it out for a NP435.
Now like you I dont like the gap between 3rd & 4th gears as it is pretty big but I fixed that
When I installed the NP435 I also installed a Advance Adapters over drive (Range Splitter) unit so I can split all the gears turning the 4 sp into a 8 sp transmission.
Now I will say some of the gears are to close to be splitting when not pulling a heavy load but I do split 3rd to 4th gear a lot because of the big gap.
Because the 300 pulls good at low RPM's I can also use over drive at 45 MPH at about 1100 RPM.
I will also say in my case the OD did not change the MPG but it has lowered the RPM so less wear on the motor running at lower RPM's
I can also run with traffic at 70-75 MPH and turn 1800-2000 RPM.
BTW in 4th at 55 MPH was 1800 RPM I now can run 70 MPH at 1800 RPM in 4th OD.
Dave ----
From what I have seen the T19 was used behind the 460 and the diesel motors in the later (80's) years.
The T18 my truck (81 F100 w/300 six) came with was in pretty bad shape and did not put a lot of miles on it till I swapped it out for a NP435.
Now like you I dont like the gap between 3rd & 4th gears as it is pretty big but I fixed that
When I installed the NP435 I also installed a Advance Adapters over drive (Range Splitter) unit so I can split all the gears turning the 4 sp into a 8 sp transmission.
Now I will say some of the gears are to close to be splitting when not pulling a heavy load but I do split 3rd to 4th gear a lot because of the big gap.
Because the 300 pulls good at low RPM's I can also use over drive at 45 MPH at about 1100 RPM.
I will also say in my case the OD did not change the MPG but it has lowered the RPM so less wear on the motor running at lower RPM's
I can also run with traffic at 70-75 MPH and turn 1800-2000 RPM.
BTW in 4th at 55 MPH was 1800 RPM I now can run 70 MPH at 1800 RPM in 4th OD.
Dave ----
Lead Driver
Joined: Nov 2006
Posts: 5,217
Likes: 506
From: Pa.
The NP435 and the BW T18 do not have the first gear synchronized, only the BW T19 has the first gear synchronized.
From what I have seen the T19 was used behind the 460 and the diesel motors in the later (80's) years.
The T18 my truck (81 F100 w/300 six) came with was in pretty bad shape and did not put a lot of miles on it till I swapped it out for a NP435.
Now like you I dont like the gap between 3rd & 4th gears as it is pretty big but I fixed that
When I installed the NP435 I also installed a Advance Adapters over drive (Range Splitter) unit so I can split all the gears turning the 4 sp into a 8 sp transmission.
Now I will say some of the gears are to close to be splitting when not pulling a heavy load but I do split 3rd to 4th gear a lot because of the big gap.
Because the 300 pulls good at low RPM's I can also use over drive at 45 MPH at about 1100 RPM.
I will also say in my case the OD did not change the MPG but it has lowered the RPM so less wear on the motor running at lower RPM's
I can also run with traffic at 70-75 MPH and turn 1800-2000 RPM.
BTW in 4th at 55 MPH was 1800 RPM I now can run 70 MPH at 1800 RPM in 4th OD.
Dave ----
From what I have seen the T19 was used behind the 460 and the diesel motors in the later (80's) years.
The T18 my truck (81 F100 w/300 six) came with was in pretty bad shape and did not put a lot of miles on it till I swapped it out for a NP435.
Now like you I dont like the gap between 3rd & 4th gears as it is pretty big but I fixed that
When I installed the NP435 I also installed a Advance Adapters over drive (Range Splitter) unit so I can split all the gears turning the 4 sp into a 8 sp transmission.
Now I will say some of the gears are to close to be splitting when not pulling a heavy load but I do split 3rd to 4th gear a lot because of the big gap.
Because the 300 pulls good at low RPM's I can also use over drive at 45 MPH at about 1100 RPM.
I will also say in my case the OD did not change the MPG but it has lowered the RPM so less wear on the motor running at lower RPM's
I can also run with traffic at 70-75 MPH and turn 1800-2000 RPM.
BTW in 4th at 55 MPH was 1800 RPM I now can run 70 MPH at 1800 RPM in 4th OD.
Dave ----
On the T-19 weren't those hydraulic clutch transmissions in the Ford applications?
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