D & D Performance GM/Viper T56

[tracy]

Does anyone have experience with this transmission from D & D Performance?

I want a T56 built to Viper specs and I want to bolt it up to a BBC in my 69 Camaro. I currently have a Muncie 4 speed with a new clutch, pressure plate, throw out bearing, etc.. The D & D guys implementation is supposed to bolt right up to my current bell housing and use standard linkage, etc...Would I be better off changing over to a hydaulic clutch setup than sticking with the stock linkage?

Are there any other gotchas that people have seen with this situation that I should be aware of.

Here is the list of specs:

650 lb-ft Torque Capacity

1.125 x 26T GM Input Spline

30T Viper Output Spline

Close Ratio w/ Deep Overdrives(2.66/1.78/1.30/1.00/.74/.50)

Carbon Fibre Blocker Rings

Steel 3-4 Shift Fork

Precision built and blueprinted by D$D technicians

Direct bolt-up to GM Saginaw/Muncie/T10 bell housings

Direct bolt-up to McLeod 8630 series steel bell housings

Accepts stock GM clutches,linkage,T.O.B.,pilot bearing,trans. mount

7T GM Mechanical Speedo Drive or Electronic Speedo Drive

Transmissions come with a offset shifter (towards driverside)

Thanks,
-Tracy

[camcojb]

I've had two T56's spec'd as above, both worked very well. Plus their service was awesome. They called me the day they showed up (I mailed in cores) and 2 days later they called again, they were done.


Jody

[tracy]

Thanks Jody!

[hapevo]

I'll second on what Jody said. D&D was great to deal with and the turn around was super quick. My T56 is behind a 482 BBC in my 69 Camaro. I just got it up and running last week. So far so good.


Ross

[cutlasskid]

thats the trans i use with my twin turbo setup no problems yet. How ever i would not go with the .50 6th gear unless you drive nascar lol. i have a 3.89 rear gear p275/50/15 on rear and can go 83 mph and be at 2,000 rpm. very good service plus they are 25 min away.

[cutlasskid]

also i forgot they sell there own d&d shifter for more money, its there version of the pro 5.0 good shifter it make for a very very tight shift pattern like driving an indy car. Im not a manual trans drag racer and had problems with gear slection due to the short throws.

[rocketman]

i have d&d t-56 in my z-28 with a 396 lt1 and it's great,takes all the abuse i throw at it and i mean abuse

[tracy]

Were any of you posters using the T56 with the adapter plate that allows it to bolt up to the stock 4 speed bell housing with standard linkage, etc? Someone mentioned that I may have to cut my tunnel at the firewall to clear that adapter plate (69 Camaro)?

[cutlasskid]

i have the adaptor plate and mclode bell but with the hydralic clutch i had to stretch the floor pan alittle to get the trans to fit in my olds but the adaptor plate was fine, also could not fit the reverse lockout solinoid in my tunnel.

[Bad Bowtie]

I'm very interested in knowing if anybody has adapter plate hitting the firewall issues in a 68 camaro as well. If so I'm in big trouble cause the firewall already has beautiful black paint on it, (customer brought it to me just out of the paint shop). I bought the Viper/t56 from D&D also but haven't gotten around to checking the fitment yet because I'm waitng for a clutch fork adjustment pivot that screws into the bellhousing. The vendor that I bought all the Mcleod stuff from sent me one for a mustang.
Just my luck!

Tracy, I have decided to give the clutch linkage a try over the hydraulic system, just will be easier for me at this point, crossing my fingers.
Jack