Konrad or NOS 3a’s
 

Well after I trashed a trans at the Rendezvous I pulled the engines and found some rot in the center of the transom, so down the rabbit hole I go. Since I will be replacing the whole thing I will also be replacing the drives, (TRS). I found some nos 3a’s but being they are also obsolete I am trying to decide if Konrad would be a better choice. Anyone have experience with both?

Sorry to hear that brotha. Those 3A’s are stout. Baby 6’s. Loved ours. Parts can be scarce to find though but and the direct bolt up of the Konrad sure is appealing. Tough call. Think I’d go with the 3As though personally. Just because I of my personal experience.

Yep, I have been kind of leaning that way. Since I have to replace the transom anyway being a direct bolt up really does not matter. I just wish everything with a trans had not been discontinued, really the only thing using a trans these days is the 6's and 8's.

yeah. If you can get NOS 3A’s I’d do that. I mean, in reality they’re highly unlikely to break if you’re running under 800hp through them. I wasn’t exactly easy on mine and NEVER had an issue. They shafts were pitted from water sitting in the prop hub which caused the shaft seals to leak
at times. I figured I’d replace the shafts when they let go. They never did. If you buy the drives install and run them and then just pick up random
parts when you come across them.

If I remember correctly, there is a guy here on OSO with the screen name RMPRAM that was making parts for SSM drives? I could be wrong, but I believe I used to see him post parts for sale in OSO marketplace.

Hit this guy up about sourcing gear sets and parts for the 3a’s, he seemed to be better situated for old parts than anyone I talked to awhile back. You’ll get a good indication of availability at least.


https://cimg5.ibsrv.net/gimg/www.off...50c7db61f.jpeg

Is there a reason that no one talks about the IMCO SCXT drive? It is for transmission setups and should be plenty stout.

Call Gary Kollofski 612-247-7081 this is who still makes parts for SSM 3, 4s and 5s

Dan,

correct me if I’m wrong but I don’t think Gary makes the parts anymore. He may have some stock left but when I contacted him for #5 uppers he had none and was not going to make any.

OP - I’d go 3s over Konrad. I’d go 6s if you’re going to keep the boat. SSM 3-5 parts are hard to find, but they are good drives.

I have very good luck with my konrads held up well and I do like the ability to call and order any part you need and have it shipped that day. 3as are great drives but hunting parts is tough.

frick did you sell your konrads?

The Imco drives are designed as replacement for Bravo which does not use a transmission. They are great option for Bravo changes, but TRS uses a 72c trans between the engine and drive.

Frick, did you have Konrads before the 5s? If so what didn’t you like?

No, Joe is correct, the SCXT drive is for a transmission application........SC and SCX are for a Bravo app

Tell me more about these scxt’s. I lovey transmissions. I’m not scared of the trs’s, but if I go bigger in the future…. I’m riding the ragged edge.

All you wanted to know

https://imcomarine.com/cal_store/

I got my boat with TRS back in 2010 - then I bought a pair of Konrads and mocked them up. I never ran the Konrads, along the way we built up the engines to a point the Konrads wouldn't have held - I found a SSM5 package and rigged the boat with 5s.

I'm sure the Konrads are sweet. I would not have run them over 750-800hp.

Sold them though? I remember your ride at glass Dave’s

I brought you a stereo to rendezvous for Bowron back in the day.

My vote is Konrads.
The 3s are basically obsolete.
You can drive to Konrad in Wisconsin and pick up any part you need.

As Joe and F2 said. But they are SCT drive packages.
For the internet challenged. Snip from the Imco catalog regarding the SCT NOT the SCX.

https://cimg4.ibsrv.net/gimg/www.off...0f2ce5e346.png

Yeah, I did sell them, a guy on here bought them to put on his Formula. I Never actually ran them on my boat, they were brand new.

Yes, thanks for bringing me the stereo, appreciate it.

Well I went with the Konrads so hopefully I will start this project soon. If anyone is looking for a nice complete set of TRS drives let me know.