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By 62bigwindow - 9 Years Ago
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Anyone here use Mummerts T5 adapter on a 55-56? I am planning on doing the swap this winter after I get rid of the 6 cyl. It looks like a pretty easy swap but what crossmember is used? I assume the stock bell and pressure plate are retained and just the clutch disc is changed. Am I on the right track in my thinking or way off?
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By Dave V - 9 Years Ago
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I have the adapter in my 56 Victoria. You will need a clutch disc only which you can also get from John Mummert. As far as the tranny mount I have an S10 tailshaft housing on mine for shifter clearance with the bench seat and had to lower the original tranny crossmember about 1 1/2" and add a short piece of angle iron to connect the tranny mount to the crossmember. Was really pretty easy. Good luck Dave V
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By 62bigwindow - 9 Years Ago
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Do you feel that the s10 conversion was needed? I would like to stay away from that to simplify things if possible.
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By miker - 9 Years Ago
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If you haven't already done it, run a search here and over at the HAMB on T-5's. There are a lot of variations of them. Some are bullet proof, and some will grenade behind a stock 292. Part of the problem is everyone refers to them as "T-5's", when they really were different transmission. Gearing, torque rating, shifter location, etc. Also check the Tremec site for the current products.
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By Rono - 9 Years Ago
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As stated by others, there are a lot of different T-5's out there. I have a 1989 T-5 in my 56 Customline, but made sure about what I was buying by checking the ID numbers on the tranny. Here is a chart that will help identify what tranny and gear ratio's you have; http://www.britishv8.org/Articles/Borg-Warner-T5-ID-Tags.htm
I did use a Centerforce clutch disk and pressure plate on my set-up as it allows for a much lighter clutch pedal.
Rono
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By lyonroad - 9 Years Ago
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The one you want is the z code 1352-251 T5. The 1352-249 is reportedly the same trans. Originally came in the 1993 and prior Mustang Cobras. Used are tough to find but new ones are readily available at places like Modern Driveline, Summit Racing etc.
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By Canadian Hot Rodder - 9 Years Ago
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62bigwindow (4/19/2015)
Anyone here use Mummerts T5 adapter on a 55-56? I am planning on doing the swap this winter after I get rid of the 6 cyl. It looks like a pretty easy swap but what crossmember is used? I assume the stock bell and pressure plate are retained and just the clutch disc is changed. Am I on the right track in my thinking or way off?
When I switched my car over from an automatic to a T-5 I used the stock T-5 transmission mount, I just had to flip the "C" channel cross member upside down!
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By Dave V - 9 Years Ago
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The S10 tailshaft housing was needed for me due to my height ( 5' 5" ) and need the seat almost all the way forward. The original Mustang tailhousing had the shifter coming up under the front edge of the seat. Dave V
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By charliemccraney - 9 Years Ago
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lyonroad (4/21/2015)
The one you want is the z code 1352-251 T5. The 1352-249 is reportedly the same trans. Originally came in the 1993 and prior Mustang Cobras. Used are tough to find but new ones are readily available at places like Modern Driveline, Summit Racing etc.
The Z came in nothing. It is aftermarket and is stronger than any factory T5. It's been around for a long time now, so you can get lucky and find one in a car but don't hold your breath. A potentially bad thing about the Z, given that it is more performance oriented, is that it has a real tall overdrive, for use with a shorter rear drive for a reasonable total overdrive ratio. A potentially good thing is that the brand new Z will probably be cheaper than having a worn out transmission rebuilt.
A link to a chart, http://www.fordmuscle.com/archives/2000/09/t5swap/index2.shtml.
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By Canadian Hot Rodder - 9 Years Ago
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Dave V (4/21/2015)
The S10 tailshaft housing was needed for me due to my height ( 5' 5" ) and need the seat almost all the way forward. The original Mustang tailhousing had the shifter coming up under the front edge of the seat. Dave V
Dave,
Used the stock Mustang T-5 tail stock and a B&M "Ripper" shifter. Shifter came with a reversable 1" offset adapter. I bolted a Hust stick (for a nostalgia look) to the B&M shifter and it cleared my bench seat by at least 4".
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By Canadian Hot Rodder - 9 Years Ago
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Dave V (4/21/2015)
The S10 tailshaft housing was needed for me due to my height ( 5' 5" ) and need the seat almost all the way forward. The original Mustang tailhousing had the shifter coming up under the front edge of the seat. Dave V
Dave,
Used the stock Mustang T-5 tail stock and a B&M "Ripper" shifter. Shifter came with a reversable 1" offset adapter. I bolted a Hust stick (for a nostalgia look) to the B&M shifter and it cleared my bench seat by at least 4".
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By Dave V - 9 Years Ago
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I looked up the B&M Ripper shifter. Very interesting. The S10 tailshaft housings are getting very hard to find so this is a great solution. Dave V
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By 62bigwindow - 9 Years Ago
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I take it you are talking about the pro ripper. The ripper doesn't look like it could be adjusted.
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By 62bigwindow - 9 Years Ago
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I take it you are talking about the pro ripper. The ripper doesn't look like it could be adjusted.
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By Canadian Hot Rodder - 9 Years Ago
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62bigwindow (4/22/2015)
I take it you are talking about the pro ripper. The ripper doesn't look like it could be adjusted.
Big Window,
I guess you are right. The pro ripper comes with a bolt on "offset" for the shifter. I welded my Hurst stick to this offset and then bolted it to shifter. This also gives me shift stops as I have heard that a weakness with T-5's is jamming the 3rd gear syncro (the stops prevent this).
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By Canadian Hot Rodder - 9 Years Ago
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Since we are talking about T-5's and I just put mine back in, I have what may be a dumb question. LOL My Ripper shifter has a plug in the top base that bolts to the transmission. Last time I filled the T-5 with synthetic ATF through the side plug in the body with a suction pump. This worked, but was quite messy! Could I just not put a funnel into the shifter plug, leave the side plug out and pour in the ATF up top until it starts to come out the side plug? This is a heck of a lot easier since this time I am not using a hoist, but doing it on my back on jack stands!
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By charliemccraney - 9 Years Ago
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All Tremec transmissions have built in stops. Stops on a shifter are extra insurance, and can account for wear of the stops within the T5. Check the adjustment every now and then to make sure the clearance is adequate as out of adjustment stops on the shifter can cause more damage than no stops at all.
Here's a link to a thread about that, which includes a Tremec service bulletin you can verify for yourself by contacting Tremec. http://forums.y-blocksforever.com/Topic80557.aspx?
The 2 - 3 shift has to do with the way most manual transmissions are built and the fact that a T5 is not a racing transmission or a transmission for really high powered vehicles. The input and output shafts are directly inline. 4th "gear" simply locks the input and output shaft together. Where the two shafts connect is the weak link. Abuse the transmission or shift with too much power, and the transmission is going to break. This is true for most manuals, but TKOs and T56s, for example are built to support higher power and take more abuse than a T5, so you are able to get away with a lot more with those.
Can't help with the plug but as long as it doesn't hold some critical part in the shifter and goes into the transmission, it should work. It's a question to ask B&M. If that works, I would just put in the measured amount of fluid, I think 2.9q. I can never get the full capacity in the transmission if I use the fill plug. Never had a problem with a little less, but if I have the ability, I put in the specified amount.
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By 62bigwindow - 9 Years Ago
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Thanks for the clarification on the ripper. I plan to use that shifter with the Hurst bench seat shift handle. It should give me plenty of room to bang gears.
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By Canadian Hot Rodder - 9 Years Ago
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Ok, thanks for the info Charlie. Now I have a question about the stops on my shifter. I read the article and it mentions the later model Tremec T-5's. Mine came out of an 89 Mustang, so I am going to assume it is a Borge Warner model? Should I remove the stops from my shifter or just leave them be? I've been beating on the T-5 for 2 years now with no problem, but now I am putting out 310 ftlbs of torque.
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By charliemccraney - 9 Years Ago
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It applies to the Borg Warner T5 as well, essentially the same transmission. Just check your stop screw adjustment with each oil change and you should be good. You just want to be sure that you are fully engaging the gear and that the stop screw does not prevent that.
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By Canadian Hot Rodder - 9 Years Ago
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Will do Charlie, thanks!
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By 62bigwindow - 9 Years Ago
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Are there any other mods needed to do the swap? I know that in the truck conversion there is some geometry issues with the clutch fork.(thanks for the heads up Charlie) Is this an issue with the car conversion?
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By charliemccraney - 9 Years Ago
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That is possible geometry issues when using a diaphragm clutch. A stock style long clutch may be ok. And if you are able to use the stock pressure plate, there should be no issues at all. See this thread for more info, http://forums.y-blocksforever.com/Topic15164.aspx?
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