Too low geared
New User
Joined: May 2002
Posts: 2
Likes: 0
Too low geared
I have a 72 utility truck with in line si
240). The rear end
is so low geared that the engine is screaming at 55mph. Can a
5 speed be found to fit? The truck is great for towing just needs
more top end.
Thanks
240). The rear endis so low geared that the engine is screaming at 55mph. Can a
5 speed be found to fit? The truck is great for towing just needs
more top end.
Thanks
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Too low geared
You didn't indicate wheather you have a 1/2 ton or larger truck. The little six can take it, just mash the gas and drive to your nearest yard and buy a 390 to install.
All non overdrive trannys have a final output of 1 to 1 so a 17 speed tranny is turning the same as the 3 speed. You would have to go to overdrive to make a difference, or change your rearend gear.
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John
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In the cool still quiet of night, you can hear chevies rusting away.
All non overdrive trannys have a final output of 1 to 1 so a 17 speed tranny is turning the same as the 3 speed. You would have to go to overdrive to make a difference, or change your rearend gear.
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John
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[link:www.ford-trucks.com/users/jowilker|My Club FTE Page] Member 0004 since 01 01
[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NCFTO] North Carolina Ford Truck Owners Group
In the cool still quiet of night, you can hear chevies rusting away.
Senior User
Joined: Dec 2001
Posts: 396
Likes: 0
From: Ohio
Too low geared
I too have an I6 240 and wouldnt swap it for a V8 for nothing!!! When I bought my '67 it had the NP 435 with the granny gear and a 4.10 rear-end. Wanna talk about SCREAMING!!! I swapped a 5spd. w/OD from a 1990 F-150(IT WAS SOOO EASY TO DO!!!
) I also grabbed another Dana 60 axle with a 3.73 and swapped that in. The truck runs great and drives incredible.
Don't listen to everything you hear, no FE engine will out last that 6 cylinder you have!!!
Ken
) I also grabbed another Dana 60 axle with a 3.73 and swapped that in. The truck runs great and drives incredible. Don't listen to everything you hear, no FE engine will out last that 6 cylinder you have!!!
Ken
Senior User
Joined: Dec 2002
Posts: 163
Likes: 0
Too low geared
Ok, Ken, spill the beans, how EASY was it to swap in the 5spd? I've considered this before but could never find accurate info to whether or not it was even possible.
So, aside from getting the tranny, what else has to be done in order to make it work?
F.S.
"Ford Trucks; Eating Bow-ties for Breakfast"
`69 F100 390 4spd 300K+ miles and still rollin'!!
So, aside from getting the tranny, what else has to be done in order to make it work?
F.S.
"Ford Trucks; Eating Bow-ties for Breakfast"
`69 F100 390 4spd 300K+ miles and still rollin'!!
