tranny
Thread Starter
|
New User
Joined: Apr 2001
Posts: 3
Likes: 0
tranny
I was thinking of getting a NV 4500 transmission, but have heard that the gear ratio is too wide. What does this mean? I am looking for a good 5 speed manual tranny that will mount to a Ford 429.
Thanks
Thanks
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
tranny
For what you are wanting to do with a 429, you need to look at the cars, not the trucks, IMHO.
John
jowilker
[link:www.ford-trucks.net/users/jowilker|Club FTE since 01 01] My FTE Page
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NC Truck Owners] NC Ford Truck owners group
66F100s Rule
In the cool still quite of night you can hear chevies rusting away.
John
jowilker
[link:www.ford-trucks.net/users/jowilker|Club FTE since 01 01] My FTE Page
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NC Truck Owners] NC Ford Truck owners group
66F100s Rule
In the cool still quite of night you can hear chevies rusting away.
Elder User
Joined: Jun 1999
Posts: 940
Likes: 0
From: LAT 46.55501° & LON -122
tranny
[font size="1" color="#FF0000"]LAST EDITED ON 02-May-01 AT 10:40 PM (EST)[/font][p]When people say a tranny is "too wide", they are saying that there is too big a difference in ratio between nearby gears. For example 2nd gear may bee too low, yet 3rd gear is too high for a particular speed/RPM. This is typically not a problem for a larger V8 in a truck application, but for a whimpy 4-banger with a narrow engine power band, gross performance may suffer.
The NV4500 is a good tranny that was available in 90's Dodge & Chev. trucks. Think of it as a 3-speed with a granny 1st & OD 5th. The ratio's for Dodge are: 1st>5.61 2nd>3.04 3rd>1.67 4th>1.00 5th>.74 Chevy are: 1st>6.34 2nd>3.44 3rd>1.71 4th>1.00 5th>.73 The lower 1st in the Chevy is difficult to find because all the "Jeep guys" have been swapping them in. I prefer the Dodge version personally because it is fully synchronized including 1st&reverse--no more grinding gears to get R. I also know that some people swap different gears between the two to help narrow down the split, probably not necessary in your case.
Not sure if you can make it work for your engine, but these people will know. They sell new NV4500's, and make adapter kits for just about anything to bolt them to. http://www.advanceadapters.com/
The NV4500 is a good tranny that was available in 90's Dodge & Chev. trucks. Think of it as a 3-speed with a granny 1st & OD 5th. The ratio's for Dodge are: 1st>5.61 2nd>3.04 3rd>1.67 4th>1.00 5th>.74 Chevy are: 1st>6.34 2nd>3.44 3rd>1.71 4th>1.00 5th>.73 The lower 1st in the Chevy is difficult to find because all the "Jeep guys" have been swapping them in. I prefer the Dodge version personally because it is fully synchronized including 1st&reverse--no more grinding gears to get R. I also know that some people swap different gears between the two to help narrow down the split, probably not necessary in your case.
Not sure if you can make it work for your engine, but these people will know. They sell new NV4500's, and make adapter kits for just about anything to bolt them to. http://www.advanceadapters.com/
Cargo Master
Joined: Aug 2000
Posts: 2,931
Likes: 12
From: SW Michigan
tranny
What you have heard is correct, the NV4500 gears are very wide, I wouldn't use one unless you can get it for nothing. The Clark 280 series was available behind several ford engines in the mid 60s to the late 70s and are plentiful in big-truck salvage yards. I paid 250 $ for one with all the pieces to put it behind a 390. My 285 clark has 7.0 1st, 4.09 2nd, 2.24 3rd, 1.47 4th and direct fifth. Other clarks have different gears and Eaton can tell you the ratio if you read them the tag (Clark was bought out by Eaton). There are some real bargans out in the junkyards. The other possibilty is the 5 and 6 speed ZF trannys that come behind the newer 460s, again a salvage yard item. DF
Thread
Thread Starter
Forum
Replies
Last Post
KaeJay
1987 - 1996 F150 & Larger F-Series Trucks
4
Sep 9, 2007 08:02 AM
Sunfire_Stomper
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
8
Nov 5, 2002 03:31 PM
