Will a Borg Warner T-5 from '89 5.0 fit my '65 3-speed stang? - Ford Mustang Forum
 
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post #1 of 12 (permalink) Old 08-18-2002 Thread Starter
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A t-5 tranny

I have just recently seen a Borg Warner t-5 at a junkyard from a 1989 5.0 Mustang. i was wondering if this will fit in my 65 mustang. I have 3 speed manual in it now.
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post #2 of 12 (permalink) Old 08-18-2002
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it will, but there are allot of modifications to be made. There is a posibility that it will not work with your engine. In 1965 Ford produced 2 different 289 blocks, one with 5 bell-housing bolts, and the newer one that has 6 bellhousing bolts. If it has 6, then you can bolt a T5 to it
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post #3 of 12 (permalink) Old 08-18-2002 Thread Starter
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I have a 4 bolt form tranny to bellhousing. but i could also buy the bell housing form the junkyard.
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post #4 of 12 (permalink) Old 08-18-2002
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Quote:
Originally posted by gavin123
I have a 4 bolt form tranny to bellhousing. but i could also buy the bell housing form the junkyard.
count the number of bolts between the ENGINE and the bellhousing
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post #5 of 12 (permalink) Old 08-18-2002
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There is a kit to put a T-5 into your 65. As for the bellhousing I'm not sure if it matters, I don't know.

Here is why I say this. A T-5 has a longer input shaft. To put it in your 65 the kit uses a spacer/adapter plate between the trans and bellhousing.

If the trans 4 bolt patterns are the same between the 5 bolt and 6 bolt bellhousing to engine patterns it may not matter what bellhousing you have.

Tony Berger
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post #6 of 12 (permalink) Old 08-19-2002
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Justin, it does, you need a T5 bellhousing, it is deeper
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post #7 of 12 (permalink) Old 08-19-2002
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You do not need a T-5 bell housing.

Sacramento Mustangs and Mustangs Unlimited have a kit that has the proper spacer plate to adapt the T-5 to the original bell housing.

http://www.sacramento-mustang.com/cgi-bin/cart.pl?db|sm.dat|Transmission

http://www.mustangsunlimited.com/


Since gavin123 already has a bell housing it would make sense to try and use it. The question was 5 bolt or 6-bolt engine pattern. If he has a 5 bolt, then he would have to use the spacer/adapter. Evan if he has the 6 bolts, he has a bell housing already and the adapter kit makes sense again.

Yes you can use a T-5 bell housing, but you need to modify it too to use the 65's clutch linkage. There maybe be some starter alignment issues too, a different flywheel may be needed

Tony Berger
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post #8 of 12 (permalink) Old 09-03-2002 Thread Starter
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borg warner t-5 info for a 65 mustang

so it doesn't matter what year borg-warner t-5 i buy. b/c i could buy any of the 5-speeds at the junkyard.
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post #9 of 12 (permalink) Old 09-08-2002
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Re: borg warner t-5 info for a 65 mustang

Quote:
Originally posted by gavin123
so it doesn't matter what year borg-warner t-5 i buy. b/c i could buy any of the 5-speeds at the junkyard.
Yes, it matters! T5's were/are built for a number of cars and Mustang 5.0L are just one of them. You need a World Class T5 capable of 300 ft-lbs of torque or greater. This shortens the list of potential T5s to about 20% of the available salvage transmissions. There's a list on the web site and it lists the potential models you can use. To be honest, there's nothing better than a new transmission and Ford Racing, Summit, Jegs and others sell these for about $1200. Now before you knock the price and say a salvage transmission is better, think twice! The new one has the latest mods and is good for 330 ft-lbs of torque. A salvage unit might need rebuilding or need the mod kit. If you pay for a rebuild after buying salvage, then you're at the same price level.

Can you install the T5-Z in place of a three-speed toploader? Sure you can and it doesn't require any sheet metal modifications. Use a California Pony Cars T5 adapter plate and crossmember, a new transmission mount, new slip yoke. You'll need a new shift handle, boot and escutcheon. NPD carries all these parts. You may need to shorten and rebalance your driveshaft; $100 will take care of this. How will it feel? Ha-Ha...its the best modification you can do for a classic Mustang, you'll wonder why you didn't do it sooner. Is it good for all 289's, 302's, 351w's? It is good for all 289-302s but is not the transmission for 351w's Why not? T5's torque rating is max at 330 ft-lbs. This makes it compatible with all 289-302s regardless of horsepower but for the same reason not good for stroker 302's (347) or 351w's. For these engines pick a more robust tranny.
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post #10 of 12 (permalink) Old 09-10-2002 Thread Starter
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what do you recromend for the 302 stroker, b/c i have a 302 stroker in my garage being prepared to put in.
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Re: borg warner t-5 info for a 65 mustang

Quote:
Originally posted by gavin123
so it doesn't matter what year borg-warner t-5 i buy. b/c i could buy any of the 5-speeds at the junkyard.
With your present configuration, 3-speed transmission, your best choice is to use the California Pony Cars adapter plate for T5 and their crossmember. To use this, you need a new transmission mount with slotted holes instead of the one with round holes you have now.

You will need:

a. T5 transmission
b. CPC adapter plate (some machine work required to fit it).
c. CPC crossmember
d. New transmission mount (slotted hole type)
e. New slip yoke (explained below).
f. New shifter handle (completely different from your present shifter).
g. Driveshaft rework (explained below).

You can use your present shifter boot, escutcheon plate for the shifter. You can also buy new ones if your current ones are shabby.

(b) above. The CPC adapter plate matches the Toploader bell housing you have now to the T5 transmission. It also spaces the T5 7/8" back from the mounting position of your current 3-speed. This is needed because the T5's input shaft is 7/8" longer than your 3-speeds. The machine shop work to fit the adapter plate to your existing bell housing is about $35.

(d) above. Although you could use your old transmission mount, slot its holes and make it fit, its much easier to buy the new mount and it fits directly. The lump on the mount faces back towards the rear end.

(e) above. You'll need a new slip yoke. Although the old one will fit, its most likely worn significantly in the area where the T5's rear seal rides. The T5 uses Dextron III/Mercon V transmission fluid that is a lot thinner than the type of transmission grease used in your 3-speed. The result of using the old slip yoke is usually a lot of transmission fluid spots on your driveway. Get a new one to avoid the mess it can cause.

(f) above. You'll need a T5 shift handle to bolt onto the top of the T5. There are many available but if you want one that looks like the original four-speed shift handle, you can get it from National Parts Depot and other Mustang vendors. This handle looks original except for the 5-speed knob on top.

(g) above. You MAY need to rework the driveshaft. Why? With the T5 spaced back 7/8" most folks find that the clearance between the end of the T5 and the slip yoke is too close. You need 7/8" clearance between the seal and the yoke part of the slip yoke. So how do I find out how much to cut off the driveshaft and how do I do it? After installing the T5, do a trial install of the driveshaft. If you can't get it in, then obviously, you need to shorten it. If it goes in but is closer than 7/8" between the yoke and the tranny tailshaft, then you shorten it enough to achieve 7/8" clearance. Hence if the clearance is 1/4" before shortening it, then you'll need to shorten it 5/8", etc. Where do I get this done? The best thing is to find a light duty driveline shop in your home town that does this work for you. Also have the shop replace the u-joints at the same time and you'll be sure of having a good, freshly balanced driveshaft.

The T5 is a pleasure to have in your car compared to the 3-speed and you'll get 10-15% better gas mileage on the highway as a result of the swap. This is a very worthwhile change. My advice is not to buy a used transmission rather buy a new one. By the time you get a used transmission, have it reworked and the update kit installed, you'll be very close to the cost of a new one. Save yourself a lot of pain and agony and install a new one.

Last edited by Jeff65; 09-10-2002 at 11:35 PM.
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Quote:
Originally posted by gavin123
what do you recromend for the 302 stroker, b/c i have a 302 stroker in my garage being prepared to put in.
I assume this takes you to 347 ci. If so, it will up torque enough to take you out of the T5's working range. You'll need a Tremec 3550 or TKO and a little sheet metal modification.
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