maxxin2.5

okay i have a pro .15 t-maxx i converted it to 2.5 and then i recently bought the 3.3 susp arms and driveshafts. i recently bought a t-maxx 3.3 tranny and the outputs shaft do not fit. the shafts on the tranny are to large.

i was told to switch the shafts between my trannys but the bearings in the .15 tranny are to small. what can i do?

are there any output shafts that are direct replacement?

any help appreciated

maxxin2.5

no help?

Quickywd01

My Feedback: (3)

Take some pictures or re-explain it because when I read that it sounds like it should work since you have the other shafts.

maxxin2.5

okay

i have my 3.3 transmission, the output shafts from my truck to not fit onto the 3.3 tranny because the shaft is to large.
so i tried switching the old shafts from my .15 tranny to my 3.3 tranny but since they are not as wide they do not fit in the bearings that the 3.3 tranny uses. so i tried using the bearing from the .15 tranny but they are to small to fit in the tranny case.

so all in all.

my output shafts fit onto my .15 tranny not the 3.3
i cant use the shaft from my .15 tranny because the breaing hole is to large
i cant use the actualy bearing in the 3.3 tranny because i will not fit the case.

okay i did my best.

lmk if its better and you can help.

Snook Man

You need the 4909/2.5R transmission FOC shaft, to put in your 4908 transmission.
http://www3.towerhobbies.com/cgi-bin...LXMJG1&P=7
It is a 5mm shaft the same as the drive yoke on the shafts you have.

The .15 output shaft would not work even if you had the correct bearings.

maxxin2.5

this transmission already has the foc. well i just bought a 3.3 forward only transmission. i still have to buy that? there arent output shafts i can buy that i can use?

Snook Man

There are two versions of the 3.3 tranny. The early model 2.5R and short wheel base 4909 T Maxx use the smaller diameter output shaft and both come stock with reverse.
The 4908/4907 3.3 extended chassis version uses the revo spec 6mm output shaft and is Forward only.
The 3.3 4908 transmission you have usesthe 6mm output shaft.
The 2.5R and 3.3(4909) Maxx tranny uses the 5mm shaft you need to fit the center shafts you have.
I believe the shaft is only availiablewith the kit.
The brake system from the 4909 (Blue hex system) will also make the install easier.

maxxin2.5

wouldnt i just be able to use the 2.5r 4909 center shafts?

if not i would need to get the FOC you posted and the 4909 blue hex brake system?

Rcracerreview

im pretty shore that the hpi save 25 will fit but im not 100% possitive

maxxin2.5

what will the brake do to help me with this?
thanks

Snook Man

<p class="MsoNormal" style="MARGIN: 0in 0in 0pt"><font face="Times New Roman" size="3">The 4908 brake system uses a 2 pin front drive yoke to engage the brake disk. You would need the 4908 center shaft to use that system. You would also have to dremel the short chassis you have to allow clearance through the chassis for the larger diameter center shaft which requires you to cut into the mounting holes for the throttle/brake servo mount.</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 0pt">

<font face="Times New Roman" size="3"> </font></p></p><p class="MsoNormal" style="MARGIN: 0in 0in 0pt"><font face="Times New Roman" size="3">The 4909 brake setup uses the Hex Nut brake system much like your original .15 setup except with different brake pads/calipers. Using the 4909 brake setup will allow you to use your existing center shafts or upgrade to the 4909 center shafts which are much more durable than the smaller .15 shafts.</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 0pt"><font face="Times New Roman" size="3">You will need the 4909 FOC shaft to use this setup.</font></p><p class="MsoNormal" style="MARGIN: 0in 0in 0pt">

<font face="Times New Roman" size="3"> </font></p></p><p class="MsoNormal" style="MARGIN: 0in 0in 0pt"><font face="Times New Roman" size="3">The HPI .25 tranny and/or output shaft will not fit the truck and/or the transmission.</font></p>

maxxin2.5

http://www.amainhobbies.com/product_...Kit-TMX-25R-33

is this the FOC i need? i believe it appears different fromt eh one you posted snook.

and i cant find the brake system you are talking about? when i try to lookup parts they do not say 4909 or anything. they just say like 3.3. im having the hardest time with this.

thanks for all the help tho.

maxxin2.5

im still confused about what hex brake system.