I have read a little on this situation and i was wandering what if any are direct drop in replacement/upgrade for the diff.I also seen something about tc3 spools anyone know if this works?If so got a part number?And are the pinion gears seperate from the input shaft on the pti and tc3?
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tc3 parts
- Thread starter EMUTT
- Start date
K_B
I wanna be Dave
You can actually buy the spool here:
http://www.ptiracing.net/buy/buynow.htm
There was an aluminum TC3 spool that was a direct fit made by a company called IRS. But I can't find it on Tower anymore. Associated makes a STEEL spool, but I found out that it is not a direct fit. You have to auger the hell outta the slots because they aren't deep enough for the dogbones.
Here's the gears:
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXNZ99&P=7
Both of those are a direct fit in the Goliath. You can also get the gears individually from PTI in the link above.
http://www.ptiracing.net/buy/buynow.htm
There was an aluminum TC3 spool that was a direct fit made by a company called IRS. But I can't find it on Tower anymore. Associated makes a STEEL spool, but I found out that it is not a direct fit. You have to auger the hell outta the slots because they aren't deep enough for the dogbones.
Here's the gears:
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXNZ99&P=7
Both of those are a direct fit in the Goliath. You can also get the gears individually from PTI in the link above.
aggressivellc
Quarry Creeper
If I remember correctly that gear is made for the TC3 ball diff you have to drill out the center for it to fit on the PTI's spool.
I think this is the dirrect fit gear http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXSG37&P=7
But I always buy the ones KB listed and just drill out the center. Plus you get the pinnion with that one.
I think this is the dirrect fit gear http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXSG37&P=7
But I always buy the ones KB listed and just drill out the center. Plus you get the pinnion with that one.
OGmicromonster
Rock Crawler
Associated sells two steel spools. One for the TC3 (electric) and one for the NTC3 (nitro). The one for the nitro is a little bit wider and needs to have the slots milled for the dogbones to fit (what K_B is talking about). The other one should be a direct replacement. PTI bought the Associated one to use as a guide for making theirs.
Here are the two parts
TC3/TC4 electric #[SIZE=-1]1703 <--- the one you want[/SIZE]
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXJTS2&P=7
NTC3 (nitro) #[SIZE=-1]1704[/SIZE]
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXBMK0&P=7
Compare the length of the two ends on the spools. See how much longer the #1704 part is? It's made for a 200mm car. The 1703 part is made for a 190mm car.
Here are the two parts
TC3/TC4 electric #[SIZE=-1]1703 <--- the one you want[/SIZE]
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXJTS2&P=7
NTC3 (nitro) #[SIZE=-1]1704[/SIZE]
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXBMK0&P=7
Compare the length of the two ends on the spools. See how much longer the #1704 part is? It's made for a 200mm car. The 1703 part is made for a 190mm car.
Last edited:
K_B
I wanna be Dave
Uch! I'm spreading mis-information all over the place! 
