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T18 or T170?

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Asa
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T18 or T170?

Post #1 by Asa » Sat Oct 20, 2018 6:22 pm

This guy, with an aluminum case, is on my '87 donor engine which is out of a F150. From what I can find online, its either a T18 or T170

I don't need it, so I'm figuring I'll sell it. Anyone know what it is, and what I might expect to sell it for?

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jason832
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Re: T18 or T170?

Post #2 by jason832 » Sat Oct 20, 2018 7:22 pm

The t18 is probably cast iron not aluminium. The t18 is also a monster 4 speed with granny first.

Go onto google and look up the following transmissions and see if they look like the ones you have. Its pretty easy to identify what you have by looking at it.

Np435
T18
T19
Zf5 ford 5 speed
M5od-r2
The t170 as you suspect

Should be one of those. Judging the color, clear ford style part number, and ribbing of the case I can see in the picture it looms like a zf5 or mdod-r2. The zf5 is the one that will be worth a good amount out of the list.

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Re: T18 or T170?

Post #3 by sdiesel » Sun Oct 21, 2018 1:07 am

that's not a zf.
a long love affair with the 300 six.
my lastest and final fling is a fresh 300 in an 88 ford f350 dually 4X flatbed

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Haywood
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Re: T18 or T170?

Post #4 by Haywood » Sun Oct 21, 2018 12:33 pm

If that is out of an '87 f-150 it is most likely a T170FT (Code-RTS) Top loaded 4 speed with 4th being overdrive. Aluminum case and shift tower. Found in Ford F150-250 light duty trucks, also known as a TOD (top shift overdrive)
Actually a rather pleasant transmission, decent gear spacing, unloaded I prefer it to the M5R2 Mazda 5 speed, which seems a bit short in first and a little notchy. A T170FT does have a lot of yellow metal parts inside, so fluid should be safe for that.

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Re: T18 or T170?

Post #5 by Lazy JW » Tue Oct 23, 2018 12:54 pm

I own four (4) T-18's, every one of them has a cast iron case and they also have a very clear raised casting mark of "T18". They are big, heavy, and quite durable.
"The White OX" 1974 F-350 300-6, Stock single exhaust, Carter YF, T-18A, Dana70 w/4.11, Flatbed dually w/dump bed. "Where no oxen are, the crib is clean, but much increase is by the strength of the ox" (Proverbs 14:4)
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Re: T18 or T170?

Post #6 by Asa » Tue Oct 23, 2018 8:04 pm

Joe, Haywood, thanks for the info.I appreciate the info.

ANy thoughts on worth?
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Re: T18 or T170?

Post #7 by Max_Effort » Tue Oct 23, 2018 9:04 pm

Asa wrote:Joe, Haywood, thanks for the info.I appreciate the info.

ANy thoughts on worth?


You’ll find them for $250 used at the salvage yards.

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Re: T18 or T170?

Post #8 by Asa » Tue Oct 23, 2018 10:36 pm

Max_Effort wrote:
Asa wrote:Joe, Haywood, thanks for the info.I appreciate the info.

ANy thoughts on worth?


You’ll find them for $250 used at the salvage yards.

About $150 more than I was thinking it was worth. Thanks.
Right and Wrong are just words, what matters is what you do



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Dr Jay
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Re: T18 or T170?

Post #9 by Dr Jay » Wed Oct 24, 2018 1:06 am

T170FT gets a bad rap,
I have used one in my truck for 5 years or so.
No doubt not as durable as a T18, or a ZF. I started with a toploader 3 speed.
Bolts right up to to a big six bellhousing. Clutch fits, drive shaft and yoke all bolt in. Speedo gear slips right in.
I dropped to 3.70 on rear end ratio and let the overdrive carry me.
I do not carry heavy loads or tow routinely.
It is just easy and effective!
PS: I did just acquire an HEH toploader 4 speed.
I think it could make my ride “Sporty” hahaha
Blessings,
Dr Jay

1978 F100 Shortie, Lowered front and rear, 300 .030 over, 300 carb head, Clifford, Holley 390
268 Comp Cam, Cloyes, Fuel Inj. exhaust manifolds, MSD 6A, TOD, 9"

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Re: T18 or T170?

Post #10 by arse_sidewards » Wed Oct 24, 2018 8:44 am

Lazy JW wrote:I own four (4) T-18's, every one of them has a cast iron case and they also have a very clear raised casting mark of "T18". They are big, heavy, and quite durable.


Some guy on gofastbroncos allegedly split a NP435 in half. That required getting airborne through.
1994 F150 4x4 8ft, engine is basically stock.

66" leafs, extended radius arms, lockers in both ends, nothing special.

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Re: T18 or T170?

Post #11 by Max_Effort » Wed Oct 24, 2018 9:59 am

arse_sidewards wrote:
Lazy JW wrote:I own four (4) T-18's, every one of them has a cast iron case and they also have a very clear raised casting mark of "T18". They are big, heavy, and quite durable.


Some guy on gofastbroncos allegedly split a NP435 in half. That required getting airborne through.


I rebuilt lots of broken NP435's ... when I worked on medium duty trucks. The GVW makes a difference. School busses were bad, because of the drivers. I never saw a case split in half tho...

The SM465 is a stronger 4sp trans, but it's not a direct bolt in to a Ford.

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Re: T18 or T170?

Post #12 by Lazy JW » Wed Oct 24, 2018 11:58 am

Max_Effort wrote:... School busses were bad, because of the drivers...


:lol: When I was in high school we had a bus driver named Jim S. He was an old Navy man, about 6'5" and weighed around 275; he had everyone's respect without being a jerk, and was definitely the most fun bus driver we ever had.

He drove a late 70's thirty passenger (yes, I did indeed ride the short bus) 4WD Ford bus on a 1 1/2 ton chassis with a 300 six and four-speed granny tranny. Jim drove that bus like he was Mario Andretti on speed; this was a very rural route in the hills of northern Idaho with tight corners and big bumps. I remember one old cattle guard that had enough of a drop that when we hit other side would sometimes get us airborne for a few feet. Why he never broke anything is indeed a mystery to me; of course all of us kids thought it was great sport :D

That was the vehicle that started my love affair with the Ford 300 six. I never saw Jim again after I left home for the Marines, but I always smile when I think of him drifting around those gravel corners with his 8-track blaring some rock 'n roll music and us boys in the back whooping and hollering. Those were indeed the good ol' days. :nod:
Joe
"The White OX" 1974 F-350 300-6, Stock single exhaust, Carter YF, T-18A, Dana70 w/4.11, Flatbed dually w/dump bed. "Where no oxen are, the crib is clean, but much increase is by the strength of the ox" (Proverbs 14:4)
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Re: T18 or T170?

Post #13 by Max_Effort » Wed Oct 24, 2018 10:54 pm

Lazy JW wrote:
Max_Effort wrote:... School busses were bad, because of the drivers...


:lol: When I was in high school we had a bus driver named Jim S. He was an old Navy man, about 6'5" and weighed around 275; he had everyone's respect without being a jerk, and was definitely the most fun bus driver we ever had.

He drove a late 70's thirty passenger (yes, I did indeed ride the short bus) 4WD Ford bus on a 1 1/2 ton chassis with a 300 six and four-speed granny tranny. Jim drove that bus like he was Mario Andretti on speed; this was a very rural route in the hills of northern Idaho with tight corners and big bumps. I remember one old cattle guard that had enough of a drop that when we hit other side would sometimes get us airborne for a few feet. Why he never broke anything is indeed a mystery to me; of course all of us kids thought it was great sport :D

That was the vehicle that started my love affair with the Ford 300 six. I never saw Jim again after I left home for the Marines, but I always smile when I think of him drifting around those gravel corners with his 8-track blaring some rock 'n roll music and us boys in the back whooping and hollering. Those were indeed the good ol' days. :nod:
Joe


The worst driver I ever saw would burn a clutch in a month, destroy a trans in two months. It was a full size Ford school bus with an NP435. The bus was owned by a social club, the only bus they had. We were getting a lot of heat for the constant failures.
Usually the bus was towed in. We repaired it and put it out in the yard.
Then finally, the driver came to get the bus while it was still in the bay....and answered all the questions.
He started the engine, revved it way up and just slipped/rode the clutch the whole way out in reverse, then ground it into gear and did the same all the way out of the yard.

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Re: T18 or T170?

Post #14 by THE FRENCHTOWN FLYER » Thu Oct 25, 2018 9:03 am

I know of a similar instance where a new driver modulated his speed on a manual shift Falcon by the amount of clutch engagement he applied, keeping the throttle constant. Sheeesh
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Re: T18 or T170?

Post #15 by MechRick » Thu Oct 25, 2018 7:43 pm

Years ago as a Ford dealer tech I had a Fox body come in for it's second warranty clutch at 8,700 miles.

Yes, 8,700 miles.

The disc was destroyed, all the clutch material down in the bellhousing. I asked the salesman that sold the car to the young girl to go for a ride with her and report back.

His report was that she was starting out in third gear, shifting to second, back to third, then on up to forth and fifth...
1994 F150, 4.9L/ZF 5 speed, C-Vic police driveshaft
EFI head w/mild port work, 3 angle valve job
1996 long block, stock pistons, ARP rod bolts
Stock cam, aluminum cam gear
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http://fordsix.com/forum/viewtopic.php?f=2&t=73244
Bronco II with a 2.3L swap http://fordsix.com/forum/viewtopic.php?f=13&t=72863
1988 F250 2x4, 460 ZF 5 speed.

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Re: T18 or T170?

Post #16 by Backwoodswalker375 » Fri Oct 26, 2018 7:19 am

About 25 years ago a elderly gentleman would bring a beautiful 1965 ford shortbed to our shop for service. It was a really nice truck. But he would go through a clutch in about 6 months. After 4 clutches I finally met the guy. He was pretty much deaf. He would slip the clutch on takeoff and then run it pretty much wide open in first and go straight to third. It was a straight 6 with 3 on the tree. I wish I had that truck today. Steve

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Re: T18 or T170?

Post #17 by Lazy JW » Fri Oct 26, 2018 11:39 am

Amazing! :bang: :mrgreen: :nod:

My old bus driver, Jim, was also a very competent mechanic and a skilled driver, in addition to being an avid outdoorsman and gunsmith. He didn't really ABUSE the bus, but he did push it pretty hard within its limitations.

My White Ox has a bone-stock clutch rated for a half-ton pickup; it has pulled many, many loads of hay with a CGVW of 20,000 lbs, plus many loads of firewood, gravel, wood chips, etc. That clutch has never given a minute's worth of trouble, and it is easy on my aging knee; my wife drives it frequently, and she is as good a hay truck driver as you will ever find. Her Dad was an old truck driver and mechanic; he taught his daughters well.
"The White OX" 1974 F-350 300-6, Stock single exhaust, Carter YF, T-18A, Dana70 w/4.11, Flatbed dually w/dump bed. "Where no oxen are, the crib is clean, but much increase is by the strength of the ox" (Proverbs 14:4)
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