v6 tranny help

[m2eDRAGGER]

i have a hardbody with a shot motor and a good running 91 patherfinder with a v6 i'm wanting to put the motor in the pick up.... problem is it's 4wd, looking for a 2wd standerd tranny that will mount up with the pathfinder v6... i was told the bell housings unbolt and may be able to use the 2wd standard trans thats in my 4cyl pick up if i use the bell housing off my v6 4wd tranny????? idk .. looking for some input.. thanks

[burrsg101]

The Vg30 (v6) uses the FS5R30A tranny for the manual tranny, which is used in a few different applications. the 4 cylinder tranny is FS5W71C if its a 5 speed which is a way weaker tranny thats geared way different. 1st generation 300zxs (z31, 84-89) used the same transmission on the turbo ones, as well as all second gen (z32 90-96) which uses the same tranny just geared different and the shifter is a little different. you could use a z31 tranny or any v6 hardbody or pathy 2wd tranny. try car-part.com. i found quite a few as low as $200.

[nismopu]

only the 87-89 300zx turbos got the fs5r30a transmission. you can however use a bellhousing from any 84-89 300zx non turbo on your existing 2wd 4 cyl tranny with the v6. Like suggested above though you can source a v6 2wd tranny for pretty cheap if you look hard enough. You will need a driveline as well though and then you will need the larger companion flange for the rear end as well. peace.

[m2eDRAGGER]

wow thanks for the responces .. u guys got this nissan stuff down pact haha.... so "nismopu" your saying i can take the bell housing from a 84-89 300zx and bolt it on my 4cly 5 speed tranny and it will mate up with my v6 motor?.. if so thatd be awsome

[burrsg101]

wait i just remembered that the bell housing is cast as part of the whole tranny. you can't take it off at all, z32 versions are the same way, thats why when people use a Twin turbo flywheel and clutch with an na tranny (only difference is in bellhousing) they just grind out the na bellhousing to fit the slightly larger clutch rather than switching bell housings because its not possible.

[m2eDRAGGER]

shit so my delema lives on... so fs5r30a trans is what i need? and what are they found in? 2wd v6 pick ups and pathfinders?

[burrsg101]

and turbo 300zxs from 87-89 as i said try car-part.com, i found some really cheap ones on there.

[m2eDRAGGER]

ok thanks for the help...

[nismopu]

You can too seperate them. Its seperated by a midplate in the center of the tranny. Its easy as hell. Just do it. Lol.

[m2eDRAGGER]

great...... so nismopu you say i can take the bellhousing from a 84-89 300zx non turbo and i'm in like flin... and burrgs say not gonna happen .. has anyone done it and has pics or something b4 i go on my scavenger hunt ??

[nismopu]

The thing is its almost nothing to do this. You can find the 300zx tranny's for dirt cheap and re sell it with the KA front case on the 300zx half when your done. Then you take the 300zx front half put it on your trucks rear half and istall it. The 240 sx guys would probly pay for your transmission after you re sell it. Just have a drive down to your local library and look in the mitchel books as to how easy it is to seperate the cases or download an FSM. You can get a 300zx FSM from xenonzcar.com peace.

[burrsg101]

http://i232.photobucket.com/albums/ee295/Import_Tuner101/DSC00030.jpg

the only point ot crack it open at is in the middle and that cracks open the whole tranny. i asked on my 300zx forum and they confirmed it.

[nismopu]

Yeah no shit. That's what I typed above. The case splits in two halves. Why would you need to confirm this? Its common sense once you look at the tranny. Lol! What were you thinking originally? An actual bell housing like an auto has? These manuals wouldn't have the strength that they do if they did.

[m2eDRAGGER]

ok back to swapping bellhousing lol.... if i do so i can still use my existing driveshaft in the pick up and will the elverything line up??? i found a 86 300zx non turbro with a manual tranny in it... now before i spill some money to get it and tare into the 300, the hardbody and my pathfinder i just want to know what i'm gittin my self in too... it all seams way to easy right now so as much info you guys can get me would be greatly apreciated ...

[nismopu]

Well yeah, all your doing is taking the front cases off. No gears or shafts or anything fall apart. Its all supported by the steel plate in the center of the tranny. The front input shaft bearings are supported by the races in the front case and a plate inside the bell housing has to unbolted as well. Once you unbolt the front plate you will see the main input shaft bearing and counter shaft bearing. So, unbolting the front plate inside the bellhousing, the bolts on the midplate and the front case will come off with some love tapes from a rubber mallet. Just repeat this process for the other tranny. One problem I didnt think about till now involves the engine itself and the 4x4 oil pan on your pathy engine. Its deeper than 2wd's and may contact your lower crossmember. So, grab the oil pan and pickup tube from the 300zx as well if you can, it will clear just fine using the pathy engine mounts. This should be a fun project for ya! When I put in a vg into a 2wd pickup it sat the engine in the exact same spot as where the KA mounted so dont worry about that stuff. Just make sure you use the pathy mounts or buy new 2wd v6 mounts if yours are worn. Just post in this thread if you have any more questions for us. peace.

300zx fsm, read it on the manual section. http://www.xenonz31.com/files/1986%20Nissan%20300ZX.zip

[m2eDRAGGER]

is there any real pros with doing the 300zx front half on a 4cly back half trans?... or would it be better just to look for a 2wd v6 manual trans??.... what is the best tranny set up for this motor??? if i can use my existing driveshaft, crossmembers,carrierbarring, and everthing else i think the 300front half on the 4cly tranny would be the way to go... what about the splines on the tranny ? everything will line up and be ok?... i can't find anymore info on this swap?

[mini702]

u would have to swap the driveshaft... splines and length are different. i think the carrier bearing is the same. same crossmember but as far as i can see it might need to go into different bolt holes on the frame, so not an issue.

[nismopu]

u would have to swap the driveshaft... splines and length are different. i think the carrier bearing is the same. same crossmember but as far as i can see it might need to go into different bolt holes on the frame, so not an issue.
^ I assume your referring to the fs5r30a 300zx tranny. He is asking about the case swap i suggested above.

Nissan uses the same splines on the input shaft for all they're tranny's so thats the least of your worries. Oh ones last thing i was comparing flywheels the other day and the pathy one is physically bigger on top of having a larger clutch surface so grab the 300zx's too. You can use your trucks clutch with the flywheel if its new or something. Too bad you caant run the pathy flywheel and clutch because its a whole 10mm's larger surface area for more grip.

Now the fs5r30a tranny is a much stronger transmission but both are serious transmissions when holding power. Most of the guys on z31performance.com are laying down upwards of 300hp through the fs5w71c's and beating the hell out of them. The only time they upgrade to the r30a's is when they're starting to push above that for just extra assurance, most of them running those tranny's if theyre cars didnt come with them are putting down 400-500hp.

If you dont plan on building a race truck out of this thing then just stick with what ya got tranny wise. If its in your budget then do the fs5r30a tranny but its alot more work as mini describes above. Its not very hard work but you do have to source all those parts including the v6 tranny crossmember. A custom driveshaft will need to be made with the v6 front yoke and the 4cyl. rear half for it to bolt up to your rear end.

Anybody ever try and swap the v6 companion flange onto the 4 cyl rear end? I have never checked to see if theyre the same spline and diameter.

I hope this isnt too mcuh info for ya to process. peace.

[m2eDRAGGER]

4 banger it is.... too much work for a daily driver! i'll post pics when i start working on it