Grizjohn Posted October 22, 2014 Report Share Posted October 22, 2014 Hello Guys I have been a member for a while, but not posted before (that I remember!) I have a 1950 Pilothouse. The engine ran nicely when I bought the truck a few years ago, but I want to get it to a better driving truck so I can use it daily if I choose to. I am thinking of keeping the flathead, but would like to put a NP2500 transmission behind it and possibly change the rear end, but 1 step at a time. Do you think this will work? Will it be possible to find a bellhousing for this combination or will I need special adaptor plates etc. I am not a mechanic by any means and after searching on this site, I have not been able to find any information that will help me determine how best to proceed. Any advice that anyone can provide would be appreciated. Thanks Grizjohn Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted October 22, 2014 Report Share Posted October 22, 2014 What is a NP2500 transmission? I do not know of any non factory transmission that is a direct bolt up with no modifications required. Quote Link to comment Share on other sites More sharing options...
Grizjohn Posted October 22, 2014 Author Report Share Posted October 22, 2014 Hi Dan I think it is also now known as an NV2500. It is a 5 speed pulled from an 87 Dakota. I understand they are a good transmission and would like to try it. Do you know of a good source that I can into for adaptor kits? I have the engine and bellhousing still from the Dakota as well as the complete drive train from the 50, so if I can use as much of that a possible, it would be great, but don't know where to start to get it mated together. Thanks Grizjohn Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted October 22, 2014 Report Share Posted October 22, 2014 I don't think you will find an adaptor for that transmission. You can always build your own but it is not a job for the faint of heart. 1 Quote Link to comment Share on other sites More sharing options...
Grizjohn Posted October 22, 2014 Author Report Share Posted October 22, 2014 Thanks don, I will have to look into a engine shop and get some further help. Quote Link to comment Share on other sites More sharing options...
MartinsB3B Posted October 23, 2014 Report Share Posted October 23, 2014 Would it be possible to find another belhousing to the era of your truck and drill holes to make the bolt pattern correct? Just a thought. Quote Link to comment Share on other sites More sharing options...
NiftyFifty Posted October 23, 2014 Report Share Posted October 23, 2014 Would it be possible to find another belhousing to the era of your truck and drill holes to make the bolt pattern correct? Just a thought. Once you remove the stock bell housing, you lose your clutch/brake pedal mounts, so that creates another fabrication headache. I would look at the T5 swap, there is already a kit and many members with great success including myself. Quote Link to comment Share on other sites More sharing options...
Grizjohn Posted October 24, 2014 Author Report Share Posted October 24, 2014 Thanks guys. I will look at your suggestions and see what I can come up with. Appreciate the help. Quote Link to comment Share on other sites More sharing options...
cavisco1 Posted October 24, 2014 Report Share Posted October 24, 2014 The AX15 and NV3550 are both good 5-speeds that were available in a variety of vehicles. It would be really interesting to see if this swap is feasible. The Jeep/Dodge AX15 5-speed, the Jeep NV3550 5-speed and the 87-92 Toyota Supra Turbo R154 5-speed all share the same case to bellhousing bolt pattern. Here is a link to some more info on the AX15 NV3550: http://www.moparchat.com/forums/showthread.php?s=&threadid=71020&highlight=supra Advance adapters has some good information on these transmissions. See page 50 of the NV manual. It's a large PDF file. http://tinyurl.com/p8lo7u7 And this guy at Quality engineered components claims he can fit one of these to a flat six, but I'm not very clear on the details. http://www.qualityengineeredcomponents.com/?page_id=224 Scott. 1 Quote Link to comment Share on other sites More sharing options...
DJ194950 Posted October 25, 2014 Report Share Posted October 25, 2014 (edited) Some questions, For the 1 ton truck? Do you plan to haul loads? Did not notice anyone asking. DJ Edited October 25, 2014 by DJ194950 Quote Link to comment Share on other sites More sharing options...
wayfarer Posted October 25, 2014 Report Share Posted October 25, 2014 The AX15 and NV3550 are both good 5-speeds that were available in a variety of vehicles. It would be really interesting to see if this swap is feasible. The Jeep/Dodge AX15 5-speed, the Jeep NV3550 5-speed and the 87-92 Toyota Supra Turbo R154 5-speed all share the same case to bellhousing bolt pattern. Here is a link to some more info on the AX15 NV3550: http://www.moparchat.com/forums/showthread.php?s=&threadid=71020&highlight=supra Advance adapters has some good information on these transmissions. See page 50 of the NV manual. It's a large PDF file. http://tinyurl.com/p8lo7u7 And this guy at Quality engineered components claims he can fit one of these to a flat six, but I'm not very clear on the details. http://www.qualityengineeredcomponents.com/?page_id=224 Scott. Scott, adapting the bell to the block is straight forward as the photos on my website show. The block adapter mounts any LA type bell housing, or one-piece trans, and there are several options for the flywheel. The same block adapter also mounts the A-904/A-500 TF. I would be happy to answer any questions that you are unclear about. As mentioned, this is NOT a simple weekend swap since you generally lose attachment points for other stuff like the brake petal and rear mounts. Plan ahead!! 1 Quote Link to comment Share on other sites More sharing options...
cavisco1 Posted October 25, 2014 Report Share Posted October 25, 2014 Thanks Wayfarer. I went back and carefully looked at your site again finding the photos. Looks like you've researched these swaps well and sell a quality product. Scott. Quote Link to comment Share on other sites More sharing options...
cavisco1 Posted October 26, 2014 Report Share Posted October 26, 2014 Grizjohn, If you have the drive-train from the '50 out of the truck, it would be interesting to mock-up the NV2500 against the bell on the flathead. Post some pictures of what it looks like. 1 Quote Link to comment Share on other sites More sharing options...
Grizjohn Posted November 4, 2014 Author Report Share Posted November 4, 2014 Hi Guys Sorry I haven't responded sooner, been traveling alot with work. Thanks for all the great feedback. I will look everything over and get some ideas. I will also get some pictures out to you all as soon as I get to that point. I really appreciate the information. Grizjohn Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.