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sycboi
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The 5-speed Richmond topic has become a T-56 6-speed topic so I thought I would start a new thread for discussion.
Does anyone know the "ins and outs" of the electric speedo sensor? I already have a Stewart Warner speedo gauge in my car with a Hall Effect switch on the 18-spline speedo output. I assume there would be two wires at the T-56 stock sensor that would run the SW electric gauge the same way, OR is it more complicated than that?
Also, other than the difference in input shaft lengths on the various T-56 applications...wouldn't any T-56 bolt up to a bellhousing the same way? I can't really find anything on the bell to tranny case bolt patterns...
Also, I can't seem to get a clear idea on whether all mustang, chevy, and Viper shifters fit from one T-56 to the next...
-Michael
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sycboi
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68S was correct in the Richmond thread about the chevy input shaft being longer than the viper thus needed a "deeper" bellhousing. I am thinking a late chevy T-56 might afford me the space to keep my dual clutch disc set-up...albeit with 10.5" discs with the correct spline for the input...
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68S
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From what little I have read on aftermarket electric speedometers, it seems you can recalibrate most of them to work with the electronic speed sensor that comes with the T56. Some electric speedometers might need to have the signal from the speed sensor altered in order to work properly. In a few posts on the subject the Dakota Digital SGI-5 seems to be the most popular way to handle any signal mismatch that may arise. http://www.dakotadigital.com/index.cfm/page/ptype=product/product_id=126/category_id=287/home_id=59/mode=prod/prd126.htmAs far as the shifter handles go, they seem like the least of the problem. Where they attach to the shifter base they are basically just a piece of flat rectangular stock with two holes drilled in it. Judging by looks I would say the handles should be interchangeable between automakers but I doubt you will find a factory version that exactly fits your application. My T56 is most likely going into a Challenger so I will end up either modifying one of my old Pistol Grip shifters or just making one from scratch. Is there any particular shifter you plan to use? I can take some measurements of the mounting hole spacing if you need it. Pat |
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sycboi
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I actually want to retain my Pistol Grip and the mustang base seems like it would put the handle about right where I'd need it...
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68S
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Is your Pistol Grip handle the type that is bolted to the base or is it held in with clips?
I have a bolt in type for E-body and I compared the bolt pattern just a few moments ago. The bolts are a little larger in diameter and spaced closer together on the Tremec but not by much when compared to my Pistol Grip. To give you an idea how close, by using slightly smaller bolts I was able to mount the Pistol Grip onto the T56 base. I would wait until after installing the transmission before modifying the shifter handle in case the placement is off. If you are lucky enough to have the shifter end up in the right spot it looks like you would only need to enlarge the two holes in the shifter and slot one of them to make the bolt pattern match up.
Pat
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sycboi
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I appreciate your feedback Pat. I have the '71-'74 B-Body style Pistol Grip repopped for Hurst so I'm not too worried if I have to modify the holes a bit. Good point about waiting to see actual fitment and location. Time will tell! -Michael  |
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FredDart
Jr. Member
 Offline
Posts: 98
BigBlockDart.Com
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Also, other than the difference in input shaft lengths on the various T-56 applications...wouldn't any T-56 bolt up to a bellhousing the same way? I can't really find anything on the bell to tranny case bolt patterns...
-Michael
I sent an email to Tremec about this issue (using a viper bellhousing with a ford or gm t56). Basically what he told me as I recall is that yes it will bolt right up, but you wont be able to use it because of the input shaft lenght (mopar drivers usually have bigger shafts  ). Why dont you just use the whole viper t56 set-up? Its not that much more expensive. If you're going with a BB t56, you should ask MikeR. He used a viper t56 on his. Fred |
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sycboi
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Also, other than the difference in input shaft lengths on the various T-56 applications...wouldn't any T-56 bolt up to a bellhousing the same way? I can't really find anything on the bell to tranny case bolt patterns...
-Michael
I sent an email to Tremec about this issue (using a viper bellhousing with a ford or gm t56). Basically what he told me as I recall is that yes it will bolt right up, but you wont be able to use it because of the input shaft lenght (mopar drivers usually have bigger shafts ). Why dont you just use the whole viper t56 set-up? Its not that much more expensive. If you're going with a BB t56, you should ask MikeR. He used a viper t56 on his. Fred I really only want to use the Viper 6-speed, but I also want to understand the possibilities front to back before I start spending money. I have checked out Mikes set-up extensively, and his is the motivation behind my swap. Just something about cruising at low rpms really appeals to me. Thanks for your input Fred. -Michael |
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yambra
Jr. Member
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Posts: 21
BigBlockDart.Com
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What about this site. http://www.rsgear.com/transzilla.aspI looks like they'll build whatever you have if you already have a tranny. I think I saw this in a Car Craft mag. I'll look tomorrow. I think I remember it saying something about being able to get the tranny set up for rb/hemi. |
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MikeR
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Just went through my car records to find where I bought my t-56, I bought it in 2005 from Standard Transmission http://www.standardtransmission.com/for under $2300.00 including shipping. The part number on my invoice is tuet2062, Description: T-56 Viper, and it had a 12 month/12,000 mile warranty. Hope this helps. They also have lake wood bell housings now, they look like they've grown quite a bit. |
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sycboi
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I'm watching both those transmissions on Ebay. I just want to see what the used market is doing to the prices. I completely rebuilt my 18-spline A833 so i'm not too worried about getting one in need of some attention.
I'm also looking at a new Viper T-56. The thing has carbon fiber syncros...crazy!
-Michael
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Think3205
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i know a lot of poeple say to use 4.10 gears with a 6-speed, but what kind of top end speed would you have with that if you aren't setting your car up for drag? what other rear-end gears would work good with this?
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MikeR
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I'm using 5.13 gears and my tires are 31" tall. Just remember, with the viper version of the T-56 the final gear ratio is .5:1 so it'll be the like cutting your rear end ratio numerically in half, so it sixth gear it's like my rear end gear is about a 2.57 gear ratio. 75mph for me is almost 2100 rpm.
With a 4.10 it would cut it to 2.05 for highway cruising. So 75 mph would be a little under 2000 rpm with a 26" tall tire. It all depends on the tire your running, just be sure the highway speed you want to cruise at will be comfortable. For this same gearing, 5500 rpm would theoretically be 207 mph (my hood would blow off for sure!).
4.56 would see a 75mph cruising rpm of 2210, not bad. 187 mph is 5510 rpm with this gear, again with 26" tires. I'd go with 4.56, it would be very quick and a comfortable cruiser.
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Think3205
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is there some sort of formula to calculate this? i want to play with the numbers some... i'm thinking of going pro touring with 19" rims in the back and maybe havin a spare set or rims for drag or something...
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MikeR
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sycboi
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I have 4.10s in my Dana 60 with 26" tall MT SRs so cruising should be nice on long trips... Rear End Ratio: 4.10 @ Desired MPH: 58 Tire Diameter (Height) in Inches: 26 Over Drive Ratio (1 for no OD): .50 RPM at Given MPH: Rear End Ratio: 4.10 @ Desired MPH: 70 Tire Diameter (Height) in Inches: 26 Over Drive Ratio (1 for no OD): .50 RPM at Given MPH: http://www.richmondgear.com/101032.html |
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Think3205
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oh cool, thanks guys! so... in theory, i could get my car to 200mph if i set my gears up right with my tires size? any anyone come close to trying this? you guys have got me thinking now... i may have a new goal...
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sycboi
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get my car to 200mph I believe that is exactly what Bill R. is looking to do... -Michael |
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Think3205
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get my car to 200mph I believe that is exactly what Bill R. is looking to do... -Michael oh really?... how is he setting up his car? pro-touring? drag? |
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sycboi
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"Thanks. I'm pretty excited to get it back together, but I need a break, so I'm taking my time with it. I have until June to get it together, so no rush. ...I didn't want to use the "chevy" hood, unfortunately, "Mopar" hoods are dangerous at high speeds - I plan on breaking 175 with it."...Bill_Reilly  |
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Think3205
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"Thanks. I'm pretty excited to get it back together, but I need a break, so I'm taking my time with it. I have until June to get it together, so no rush. ...I didn't want to use the "chevy" hood, unfortunately, "Mopar" hoods are dangerous at high speeds - I plan on breaking 175 with it."...Bill_Reilly there are 2 Bill Reilly's??? sounds pretty sweet though man, what kind of engine set-up are you running? |
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sycboi
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No man...I was quoting his post and showing his pic for you to see  -Michael |
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Think3205
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 i feel stupid now... thanks though man... |
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Think3205
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you guys should check this guy out. i just got off the phone with the owner Weir Hot Rod Products (WeirHotRodProducts.com) and he does 6-speed conversions. He is working on bellhousing that connect the t56 to sb mopars and B/RB's and HEMI's. he said they work with the 142 tooth flywheel and they should bedone this winter...
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Think3205
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i was also told today that you can use the sb mopar (if you are running a sb) to chevy t56 bellhousing that quicktime makes if you make some sort of spacer that is 0.91" to use the viper t56. i was told that by quicktime themselves and they too are working on a bellhousing that should be done by the second quarter of next year...
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sycboi
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They hacked it up by choice to set the tranny way up under the car... -Michael "fstfish66
MIKE-R that T-56 how is that shifted side mounted shifter or top loader??...and im sure the physical size of that tranny in your A body ?? had to have a lot of the floor hump cut out ??""MikeR
Since I have the AlterKation suspension, we were able to cut out the original crossmember, with that gone the floor remained intact, just a hole for the shifter." |
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