pflaming Posted October 13, 2013 Report Share Posted October 13, 2013 It's well known that the S-10 five speed transmission is a very popular swap. Mopar made similar five speed tranny's or had them made. Which model cars and which years have the best Mopar 5 speed tranny that will fit a flat head six? Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted October 14, 2013 Report Share Posted October 14, 2013 What is your objective? Do you want an overdrive transmission? Have you done the math to figgure out your engine RPM's at a given speed. Do you know your tire size and differential ratio? Quote Link to comment Share on other sites More sharing options...
james curl Posted October 14, 2013 Report Share Posted October 14, 2013 If you mean fit as interchangeable, then none, as none will have provisions for the emergency brake and most will require an adapter or rework of the bell housing to work with any modern transmission. Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted October 14, 2013 Report Share Posted October 14, 2013 come on guys...use your imagination a bit..it is nothing new to use a pinion mounted disc set up for an emergency brake if you are not inclined to upgrade the rear gear..however I feel the upgrade to a better tranny would automatically call for a upgrade of the rear axle for better brake components let alone a more street friendly ratio now that we have paved roads, longer lower grades on major thoroughfares etc..forget about advancing a decade or two .....roll in to the correct century... 1 Quote Link to comment Share on other sites More sharing options...
Robert Horne Posted October 14, 2013 Report Share Posted October 14, 2013 I have been real happy with my Ranger TK5 Toyo trans install. It was an easy install, no adapter needed. The Ranger transmissions are easy to find, and not expensive. In this area, 5 speed Dakotas and Jeeps are difficult to find. With only 80HP, I can go into 5th gear at 45MPH, with the 3.7 rear/235/75 tire combo, on level road.... Quote Link to comment Share on other sites More sharing options...
Young Ed Posted October 14, 2013 Report Share Posted October 14, 2013 I have been real happy with my Ranger TK5 Toyo trans install. It was an easy install, no adapter needed. The Ranger transmissions are easy to find, and not expensive. In this area, 5 speed Dakotas and Jeeps are difficult to find. With only 80HP, I can go into 5th gear at 45MPH, with the 3.7 rear/235/75 tire combo, on level road.... Thats because the dakotas and jeeps are still on the road! Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted October 15, 2013 Report Share Posted October 15, 2013 B A Z I N G A !!! Quote Link to comment Share on other sites More sharing options...
54Illinois Posted October 15, 2013 Report Share Posted October 15, 2013 Take my Hy-Drive! Quote Link to comment Share on other sites More sharing options...
Robert Horne Posted October 15, 2013 Report Share Posted October 15, 2013 Thats because the dakotas and jeeps are still on the road! Not around here. Most are or were automatics. Quote Link to comment Share on other sites More sharing options...
Bmartin Posted October 15, 2013 Report Share Posted October 15, 2013 (edited) I though I saw a post over on the HAMB that someone offered an adapter to fit the AX15 5 speed to the Flathead 6. I'll see if I can search it up. Here is the guys website, I believe he is on here as well. http://www.qualityengineeredcomponents.com/ Give him a call as the adapter is not mentioned on the webiste that I could find. Edited October 15, 2013 by Bmartin Quote Link to comment Share on other sites More sharing options...
Don Coatney Posted October 15, 2013 Report Share Posted October 15, 2013 What is your objective? Do you want an overdrive transmission? Have you done the math to figgure out your engine RPM's at a given speed. Do you know your tire size and differential ratio? Still waiting for answers to these questions. Quote Link to comment Share on other sites More sharing options...
Alshere59 Posted October 16, 2013 Report Share Posted October 16, 2013 I though I saw a post over on the HAMB that someone offered an adapter to fit the AX15 5 speed to the Flathead 6. I'll see if I can search it up. Here is the guys website, I believe he is on here as well. http://www.qualityengineeredcomponents.com/ Give him a call as the adapter is not mentioned on the webiste that I could find. Interesting thread on his adapter as well. Above my head on some of the technical issues posted. What do those more knowledge have to say? Al Quote Link to comment Share on other sites More sharing options...
james curl Posted October 16, 2013 Report Share Posted October 16, 2013 If you used his adapter on a I/6 with the Dakota bell housing then you would need a new cross member to take the rear transmission mount location as the existing mounts are on the I/6 bell housing and not the transmission. Quote Link to comment Share on other sites More sharing options...
Bmartin Posted October 16, 2013 Report Share Posted October 16, 2013 (edited) Where does the adapter put the AX15 shifter with respect to distance from the front seat. That seems to be one of the bigger issues for me when looking at a swap. The S10 T5 is the furthest forward that I have found. Edited October 16, 2013 by Bmartin Quote Link to comment Share on other sites More sharing options...
Robert Horne Posted October 16, 2013 Report Share Posted October 16, 2013 The Jeep 5 speed shifter is far to the rear, very similar to my 5 speed Ranger install. I compensated for this by putting more curves into the floor shift, so not to hit my bench seat. Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted October 17, 2013 Report Share Posted October 17, 2013 your Mopar choices are limited...the AX15 is one unit of choice..later model Dakota/1500 w/NV3500 however do not give you a good useable unit due to the integral bell housing...the later Jeeps with the NV3500 per what I have read does have a separate bell..you may look to that for application....I personally have no first hand tech on this Jeep unit. The NV3500 with the later engine when transplanted to the older Plymouth puts the floor shifter in a perfect location just under the dash itself and with the stock curved factory shift handle..a most comfortable position to allow use of any seating and still right to hand for shifting...I have this in my 48 bz cp... Quote Link to comment Share on other sites More sharing options...
Bmartin Posted October 17, 2013 Report Share Posted October 17, 2013 Plymouthy, just for clarification, which NV3500 application are you using? Jeep or Dakota? Thanks. 1 Quote Link to comment Share on other sites More sharing options...
CaptChris Posted September 19, 2016 Report Share Posted September 19, 2016 On October 16, 2013 at 8:05 PM, Plymouthy Adams said: your Mopar choices are limited...the AX15 is one unit of choice..later model Dakota/1500 w/NV3500 however do not give you a good useable unit due to the integral bell housing...the later Jeeps with the NV3500 per what I have read does have a separate bell..you may look to that for application....I personally have no first hand tech on this Jeep unit. The NV3500 with the later engine when transplanted to the older Plymouth puts the floor shifter in a perfect location just under the dash itself and with the stock curved factory shift handle..a most comfortable position to allow use of any seating and still right to hand for shifting...I have this in my 48 bz cp... Searching around for the proper nv3500 to mate to my 340. Are the integrated units not usable because their bell housing won't bolt up to these motors? Or is it another reason? Quote Link to comment Share on other sites More sharing options...
wayfarer Posted September 20, 2016 Report Share Posted September 20, 2016 (edited) I don't think the trans know what it is bolted to so the one-piece unit from an LA block will bolt up to any other LA block, same as any of the 2-piece units. All LA engines have the same bellhousing bolt pattern and the 3.9 v6 and 4.7 v8 also have the same bell pattern. The usual issue is the flywheel since most of the late stuff is 143 tooth and balanced for the particular engine. The 3.9 v6 is a short 318 so that flywheel is usable but the 4.7 flywheel has a different flywheel bolt pattern and will not bolt up. If your 340 has a forged crank then you can rebalance the 'new' flywheel to 'zero' and be good to go. If you have a cast crank then you will need to balance the flywheel to the 340 specs. In the FWIW depart, the NV1500 and NV3500 are one piece and the NV3550 and AX15 (among others) are a two piece design. Edited September 20, 2016 by wayfarer Quote Link to comment Share on other sites More sharing options...
CaptChris Posted September 21, 2016 Report Share Posted September 21, 2016 Thanks for this great info. I am starting to figure out what to look for. Quote Link to comment Share on other sites More sharing options...
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