SDP Transmission

MaxComp88B

Member
Mar 30, 2022
152
15
18
Opinions on SDP Built Trans? It seems to be a better-priced built trans than others. It comes with a goerend billet torque converter. Opinions on it?
 

MaxComp88B

Member
Mar 30, 2022
152
15
18
Or would I just be better to find a local shop and have them build it? I imagine it would probably be cheaper too.
 

MaxComp88B

Member
Mar 30, 2022
152
15
18
Southwest Missouri area. I wont take it to a normal tranny shop. I was gonna find soemoen within 3 hrs out me that specalizes in allisons. Thre is a pulling shop who builds competitive transmissions around me I guess so I may find there phone number and give them a call. I dont plan on doing to much. Truck will stay stock fual and air for a long time. I plan on my top hp tune to just be like a 125 tune so I dont need a crazy built tranny but I want something that will hold up. Mine has 308k miles on it but never skips a beat and the motor is making more power than ever now with a new motor in it and a lot more mods.
 

Bdsankey

Vendor
Vendor/Sponsor
Feb 1, 2018
4,165
1,274
113
Larsen, Wisconsin
I've used our own units, DHD, SDP, and Randy's without any hiccups. The crew at SDP builds a good trans but I will say their typical lead times are a bit crazy.

Randy's uses all Goerend guts in their converters so it's essentially a Goerend without the label (oversimplification).


Another option is to build it yourself if you are confident in your mechanical ability using a high quality kit. We use Goerend kits at our shop in every build but the Limitless/Inglewood kits are great as well and Evan is a solid guy to work with.
 
Last edited:

OleBlackyLBZ

Active member
May 22, 2020
353
85
28
Southwest Missouri area. I wont take it to a normal tranny shop. I was gonna find soemoen within 3 hrs out me that specalizes in allisons. Thre is a pulling shop who builds competitive transmissions around me I guess so I may find there phone number and give them a call. I dont plan on doing to much. Truck will stay stock fual and air for a long time. I plan on my top hp tune to just be like a 125 tune so I dont need a crazy built tranny but I want something that will hold up. Mine has 308k miles on it but never skips a beat and the motor is making more power than ever now with a new motor in it and a lot more mods.
If it were me I would kick the can down the road, I ran tunes similar to what your wanting for 2-3 years on a stock trans beating the crap out of it. Sure it will go eventually but you may as well get the good out of it and it may last you 5 years, I highly doubt you will be as hard on it as I was mine.
 

MaxComp88B

Member
Mar 30, 2022
152
15
18
If it were me I would kick the can down the road, I ran tunes similar to what your wanting for 2-3 years on a stock trans beating the crap out of it. Sure it will go eventually but you may as well get the good out of it and it may last you 5 years, I highly doubt you will be as hard on it as I was mine.
It would be hard to be any harder than I am on it. I race everyone and there grandma even if they arnt racing me. The only thing I wont do is do a 4wd launch.
 
  • Like
Reactions: Bdsankey

OleBlackyLBZ

Active member
May 22, 2020
353
85
28
It would be hard to be any harder than I am on it. I race everyone and there grandma even if they arnt racing me. The only thing I wont do is do a 4wd launch.
Sounds like we are in the same boat then haha, I don't think I ever drove the truck that the skinny pedal didn't get put to the floor at least once and usually more than once. Now that it makes a lot more power and I have gotten older, I take it a tiny bit easier on her..