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Sell me on the T5

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anotherhassel
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Sell me on the T5

Post #1 by anotherhassel » Fri Mar 15, 2019 11:25 pm

Guys as the title says sell me on a T5 vs my 3.03. I have a line on a T5 outta a Tbird. One has a 3,5 first gear the other is a 3.97. I understand abt the pilot bearing. I have 2.83 auto rear in the car now. Not changing it. I have dual exhaust and a 2 bbl. No future mods in store for the engine. Is the 5 speed that much better? Really need some advice on this one guys.

Thanks for the help as always!

frozenrabbit
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Re: Sell me on the T5

Post #2 by frozenrabbit » Sat Mar 16, 2019 5:39 am

Toploader fan here.

The overdrive would probably be useless with that rear end gear.

If you can find one, ONLY '70-71 170c.i. Maricks and Comets had a 3.49 first gear, if you are looking for more bottom end.

Transmission #RAN-BA1 and BA2. Possible there was a BA, but can't confirm.

Bolt in option without having to change up everything a T5 install needs.

I've been looking for one.

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xctasy
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Re: Sell me on the T5

Post #3 by xctasy » Sat Mar 16, 2019 5:50 am

Ford paid good development money to turn the Borg Warner 1974-1980 SR4 into the 1981 T4. Earlier versions had a 240 lb-ft torque capacity. 30 lb-ft up on the 78 ET four speed used behind 2.3's.

In 1981, Ford used the T4 on the 3.3 Fords as a regular production option. The case was 1352, the same as the T5. Ford decided to let Jeep , GM and Nissan use the gearbox first for the 1982 model year because the demand was so high.

Ford used there own Tremec 140/142 5 speed in the 2.3's, and the SROD Tremec 170 in the 5.0 Capri/Mustang and 4.2/4.9 F trucks and E vans. The T140/142 was a 210 lb-ft trans, while the SROD was limited to the 240 lb-ft of the first 5.0 GT 2-BBL and 5.0 GT 4bbl. The T5 replaced all those except for the trucks, which got the Mazda or ZF's in F's and E's, and either Mazda or Mitsubishi 5 speeds in Rangers, and later SuperCharged T birds. Ford made servicing the clutch actualtions very complicated in the Mazda, ZF, and Mitsi transmissions. The center release slave cylinder required full transmission removal for those, not so with the T5, which is why its liked so much.

The T5 really is better than all of the above. :beer:

The ratios are okay enough to use with your 2.83:1 7-1/4" axle too, JT. And the shifter should come out where you have the 3 speed 3.03 shifter you have. Sometimes, you need to loosen and reposition the (maybee new) engine mounts to get the shifter to come out the old hole, but its s good fit usually. You can rebuild it if it ever breaks, it shifts sweetly, and Ford made the T5 a strong and long lasting addition to performance fours, sixes and eights both in the USA and Australia for 20 more years. Last engines it was behind made 295 hp and 321 lb-ft, so in some versions, it reallt could take a huge pounding and survive.

You gotta be insane not to use it. If Nissan, GM and AMC Jeep stood in line to snaffle it up first, it must have been really good! Nissan used it because it could eventually cope with a turbo 2.8 in line six or the early VQ30ET turbo in the Z car Coupes. If it was a bad gearbox, why would Nisssan use it ( the most reliablity conscious and second in conservative in terms of engineering risk only to Toyota)

Okay, sold on it yet? :mrgreen: :nod: :hmmm:

And I love the Toploader 4 speed and 9 bolt 3 speeds too!

Those gearboxes are actually way tougher than the best T5's, they used 3 speeds behind the 390 FE which had well over 425 lb-ft of torque in some versions with the Heavy-duty 3-speed manual with the 320hp 1967 GT 390 big block.

The problem with the TopLoaders is short ratio spread, and reduced parts backup.

Related to it, is the wide ratio iron Orion or alloy case Tremec T170 SROD 4 speed, a revised 3 speed gearbox with a looping great overdrive of 0.81 or 0.72, made with the 1963-1976 Top Loader tooling outsourced to Fords Mexico production plant. This was in fact based on your 3 speed short RAN 9 bolt case, so its a compact gearbox, with a reasoable shift if the plastic shifter bush hasn't chopped out. Despite the SROD's choice of three excellent wide ratio 4 speeds (I6, V8, and truck ratios were made from 1977 to 1986), which have a huge ratio spread, its a Far Inferior Transmission to any other 3 or 4 speed Top Loader, and the T5 is just as strong and doesn't suffer the mainshaft failure common to the SROD.
Last edited by xctasy on Sat Mar 16, 2019 5:22 pm, edited 2 times in total.
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bubba22349
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Re: Sell me on the T5

Post #4 by bubba22349 » Sat Mar 16, 2019 1:40 pm

frozenrabbit wrote:Toploader fan here.

The overdrive would probably be useless with that rear end gear.

If you can find one, ONLY '70-71 170c.i. Maricks and Comets had a 3.49 first gear, if you are looking for more bottom end.

Transmission #RAN-BA1 and BA2. Possible there was a BA, but can't confirm.

Bolt in option without having to change up everything a T5 install needs.

I've been looking for one.


The 170 six used in the early Bronco's also used the 3.49 1st gear 3.03 trans too. Used with a high ratio rear gear (2.47 to 2.79) this would be another version of "the poor man's overdrive". Good luck in the hunt. :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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powerband
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Re: Sell me on the T5

Post #5 by powerband » Sat Mar 16, 2019 4:06 pm

Guys as the title says sell me on a T5 vs my 3.03. ...One has a 3,5 first gear the other is a 3.97. I have 2.83 auto rear... advice on this one guys.


... not sure what car you are building/modding:

the High ratio rear gear ( 2.83:1 Maverick?) is the center issue. If you really want to keep it , the 4 cyl T5 might be a better choice for two reasons. The lower 3.97 first would give some advantage for initial acceleration (but run out of revs fast), and the 4 cyl T5 has a lower ratio 5th Overdrive (typically 4cyl=1:.79 vs V8's=1:.68. A rear ratio @ 3.4:1 to 3.80:1 is better suited to the V8 T5's 3.5 or 2.95:1 1st ratios and .68 OD's.
The 3.03 is a strong versatile tranny but doesn't offer great drivability, any T5 vs 3.03 offers better drivability with a gear spread to take advantage of the torquey' small block six's powerband .

hav efun

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anotherhassel
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Re: Sell me on the T5

Post #6 by anotherhassel » Mon Mar 18, 2019 5:44 pm

Guys thanks for the responses. I contacted modern Driveline today and they informed me that the 4cyl T5 is the one that would work with the rear gears the best. I was told that I would be at abt 20mph and 3000 rpm in first gear and 67 or so in OD at 2000rpm. I can live with that. What I can’t live with is their pricing! Wow! The guy insists that I need to replace my clutch bc it’s the wrong size? This doesn’t make sense since I have a 67 and up bell. From what I can find I already have a 1-1/16” input shaft. Can anyone shed some light in this? Also do I need to change the rear yoke?

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bubba22349
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Re: Sell me on the T5

Post #7 by bubba22349 » Mon Mar 18, 2019 6:02 pm

You are correct, if you have the (1967 up) it's all ready the largest bell housing and is also the bigger 9 inch clutch unit with the 1 1/16 inch diameter spline. All you should need is the T5 adapter plate to fit your bell housing, maybe a clutch disk, a good T5 trans, front yoke, and some shortening of your driveshaft. Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

anotherhassel
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Re: Sell me on the T5

Post #8 by anotherhassel » Mon Mar 18, 2019 6:19 pm

bubba22349 wrote:You are correct, if you have the (1967 up) it's all ready the largest bell housing and is also the bigger 9 inch clutch unit with the 1 1/16 inch diameter spline. All you should need is the T5 adapter plate to fit your bell housing, maybe a clutch disk, a good T5 trans, front yoke, and some shortening of your driveshaft. Good luck :thumbup: :nod:



Thanks bubba! I’m kinda annoyed that I was being told I was wrong and that I needed to replace my clutch. It only has maybe 15000 miles on it. Probly not even that much! I guess salesman gotta be salesman though. He was trying to sell me a new shifter and bolts and all kinds of stuff tha I was t interested in.

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bubba22349
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Re: Sell me on the T5

Post #9 by bubba22349 » Mon Mar 18, 2019 9:08 pm

Yes for sure maybe he works on a commission. Some people will use the stock three speed or four speed Ford floor shifter handle and adapt it to the T5 to keep it looking like its still original. Good luck :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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