t170 trans to flathead?
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Tuned
Joined: Mar 2009
Posts: 315
Likes: 8
From: Austin, TX
t170 trans to flathead?
I am looking for a way to use a 4 speed in my 53 v8 flathead to give me some better gearing with a new 9" I am dropping in. Finding a 4 speed that is of the smae year have proven to be hard I was wondering how about using a t170? Has anyone done it and is there much involved?
Post Fiend
Joined: Jun 2001
Posts: 7,493
Likes: 7
From: Erie, pa
The t-170 should give you an overdrive 4th gear to make the road run a little better,
You'll need a Hogshead adaptor for the tranny they are available used off the F-2 and bigger trucks and some parts houses sell them.
You'll need a Hogshead adaptor for the tranny they are available used off the F-2 and bigger trucks and some parts houses sell them.
Elder User
Joined: Nov 2008
Posts: 915
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From: Gunbarrel, Co.
So what's the point of the T-98, why that tranny?
Posting Guru
Joined: Feb 2006
Posts: 1,325
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well crap wish t-98s where worth that much in wyoming i used to have three or four of them. think they are still scattered in storage somewhere.
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FWIW the gearing on these isn't great. 2nd to 3rd is a big gap. Depending on your gears and tires, it will either be a nuisance or a real pita.
If I was doing all the work, I'd go T5. The 4 speed ODs aren't strong transmissions, so anything they take, a T5 will take. Especially the aluminum case units.
jmo, good luck with it.
If I was doing all the work, I'd go T5. The 4 speed ODs aren't strong transmissions, so anything they take, a T5 will take. Especially the aluminum case units.
jmo, good luck with it.
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Thread Starter
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Tuned
Joined: Mar 2009
Posts: 315
Likes: 8
From: Austin, TX
Its just a stock flathead butbut means I could get decent speed from a stop and could use the 3.00 gear for my 9" and get a nice cruiser. I know I can do a t5 but seems like a lot of work and to use the stock clutch/brake pedal assembly with one.
Elder User
Joined: Nov 2008
Posts: 915
Likes: 1
From: Gunbarrel, Co.
First off if you plan on using anything other than the stock tranny your going to have to modify the tranny crossmember. If you want to stay with ford parts then in the family of the T98 is the T-19 with all forward syncro gears and come both wide and close ratio gears. The close ratio gear set has the same gearing as the T-5 minus the overdrive 5th. I've seen t-19's on craigs list for $100 bucks. You don't say were you live but I don't think your going to be happy with that 3.00 gearing unless your living at sea level and no hills. I'm running 3.50 and wish I had gone with 3.70. I may correct that this winter. In my build I re-used all the stock pedels assemblies and clutch parts.
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