I personally like Novak stuff. I have their engine mounts and Xfer to Trans mount.

I tried finding the adapter on Advance Adapters site.......couldn't find it.

I've found the technical information on their stuff is much better and they answer the phone.

 

I'm leaning in that direction too. Novak just seems to be a lot more "involved" and less corporate, but this is for an older relative so due diligence compels me to check out the other option, where it looks so much cheaper on paper. I am a little uneasy that I can't seem to find a copy of Novak's installation instructions anywhere on the internet.

 

While can't speak to the TH350 kit, if it's anything like the SM465 to D300 kit I bought from Novak, it was top notch. Talked to a tech to get some information about the kit and he was very knowledgeable and answered all questions, also provided some install tips as well.
To me Novak would be the way to go.

 

I can’t speak to that exact adapter. Everything I have used from AA worked, but the Novak stuff has seemed more thought out with a better fit and finish.

 

i have no experience with AA, but i am very happy with the novak adapter i installed in my cj to use the np435 with my 258. that transmission swap was the single best mod i've made to the cj, bar none, and the novak adapter made it possible.

 

Just saw the added pics. What a monster! I had the same thing on my old Power Wagon. You needed something like a Power Wagon just to haul it around.

I like the specs on your CJ-5! Has it ever been shown here?

 

I looked over the manuals for both and it seems as though your paying for a flex plate in one and your left with deciding if you have a workable flex plate in the other. See starter engagement.

Both seem to describe similar install concerns that need to be thoroughly researched before making a decision on which is the “best” kit. They seem to go about addressing the issues from different directions.

One thing not mentioned is cooling. Not knowing your current set up, you will definitely need to plan for transmission cooling of some sort if you don’t have the provisions for that already in your radiator. Transmission cooler may be in your plans.

Your question is a good one on which is best in this case because of the mentioned unknowns in both manuals. I would be more inclined to buy the more complete kit.

 

I looked over the manuals for both and it seems as though your paying for a flex plate in one and your left with deciding if you have a workable flex plate in the other. See starter engagement.

Both seem to describe similar install concerns that need to be thoroughly researched before making a decision on which is the “best” kit. They seem to go about addressing the issues from different directions.

One thing not mentioned is cooling. Not knowing your current set up, you will definitely need to plan for transmission cooling of some sort if you don’t have the provisions for that already in your radiator. Transmission cooler may be in your plans.

Your question is a good one on which is best in this case because of the mentioned unknowns in both manuals. I would be more inclined to buy the more complete kit.

Where did you find those manuals, BrutusBlue? I'd love to read those. I would have started there too, but I couldn't find the Novak instructions anywhere. It would definitely make it much easier to decide if I knew exactly what was involved in each installation. You're right, they do seem to have completely different approaches to the same goal, and I can't envision how two such different sets of parts would solve the same pretty basic problem. The flex plate is the biggest difference between the two kits, and that closes the price gap between the two to a big extent. The Novak kit also includes a new dust shield, drilled for bolt access. The general concensus so far agrees with you, that the Novak kit is probably the best option, even if it is slightly more.