You will need more than just those two gears - the idler shaft atleast and probably even more, see the exploded views.
If I have the time (and interest) I'll try to see what exactly is needed or can it be done with minor modifications to existing parts.

exploded views (click to see bigger);

http://janezki.pp.fi/grfx/savage_xl-e/2-spd_th.png http://janezki.pp.fi/grfx/savage_xl-e/3-spd_th.png

New video available, click the pic below to see it on YouTube.

http://janezki.pp.fi/grfx/savage_xl-e/010109th.jpg

Had to change the esc to MGM ComPro 12018-3 because I got smokes from the LT-6S-150A... :tongue:
Also upgraded to RPM a-arms and changed back to stock hex adapters, because the E-Maxx ones started to wear from center hole, which caused probs with wobbling tires and changing camber.

ps. Happy New Year!

Ya I blew my 3spd aswell in my savage awhile back.

Heres a few pics...

http://i301.photobucket.com/albums/n...edownRCU/1.jpg

http://i301.photobucket.com/albums/n...edownRCU/2.jpg

http://i301.photobucket.com/albums/n...edownRCU/3.jpg

http://i301.photobucket.com/albums/n...edownRCU/4.jpg

I have ordered titanium and Delrin gears. I think that is a very good solution for all problems:)

Look at my topic for details!

Greetz,
Joram

Proper stickers now...

http://janezki.pp.fi/grfx/savage_xl-e/P1040258_800.jpg

Had to do something to keep myself busy, so I fixed my Savage with some lights.
Fronts are huge 20mm diameter blue leds which are attached to the bumper where the HPI "lights" were. I also glued fluorescent o-rings around them.
Rear lights are 12mm diameter red leds (not super bright), which are sitting at the bumber holes.
Leds are powered from receiver battery through channel 3 at my receiver so now I remember to turn the power off after driving. :smile:

When all the leds and wires are attached to the chassis, I don't have any hassle with wires when removing the body.

On to the pics -

fronts:

http://janezki.pp.fi/grfx/savage_xl-e/P1040268_800.jpg

fronts off:

http://janezki.pp.fi/grfx/savage_xl-e/P1040280_800.jpg
(they're really not that bright, just long exposure trick)

rears:

http://janezki.pp.fi/grfx/savage_xl-e/P1040288_800.jpg

Leds & o-rings came from www.dealextreme.com and resistors from local electronics hobby store.

very kool :yes: Can you show a pic maybe of how their wired with resistors?

I can't provide actual photo since I've got all shrink wrapped, but here's drawings how they are connected:

fronts:
http://janezki.pp.fi/grfx/savage_xl-e/fronts.png

rears:
http://janezki.pp.fi/grfx/savage_xl-e/rears.png

Drawings & resistor calculations provided by ledcalc.com

Thank you for that, one thing is R1 the value of resistor I look for?

Use the calculator at ledcalc.com and input all the necessary values, then click "Click To Calculate" button. The program tells you the proper resistor value in your case (in Ohms) and draws you the proper wiring picture.
The size of the resistor is depending from system voltage and leds used.

Janezki

I exploded my 3 speed last week too. (I had about 6 lipo packs on it) I also have a Kershaw Design direct drive on order. I'm also going to work on using a Ofna diff out of there dirt oval car (solid spool drive) with the motor driving that, like a truggy setup.

For answers on the Cen Gen diff mod follow this link
http://www.rcbasher.com/savcendiffs.html
I used the four pinion setup with 7000 oil in front and 5000 in the rear diffs.
I need more time to tell if these are the right weight.

I'm running a Neu 1515 1y on 4s 8400 lipo, with MMMv2 and 16 tooth pinion and stock spur/slipper full tight. That was good for 49 mph before the rear end change. The Cen Gen rear end will give you higher top end. Iplan on switching to Flight Power 6s 5000 lipo at some point this up coming summer.
Lights look really cool on your truck, how do you keep your truck body so nice looking, mine is trashed......

Thanks for the link, doo540. Much appreciated!
Those CEN diffs do look mean. :great:

I have no hurry in replacing the diffs yet, I'll wait until ppl have experiences from the Flux diffs and then have to compare which comes cheaper.
Also, the Kershaw tranny raises total gearing ratio, so with CEN diffs it gets even more taller - might be time to get lower kv motor. :neutral:

Which I'm in need anyway atm - went for a little drive with friends on Sunday, but my Savage just didn't want to move - stuttering starts, not possible to give more than half throttle or esc cuts all power. I tried the motor without a load and MGM gave more throttle instead of braking, which had never happened before with this motor. We tried the motor in my friends' truck too and had the same results, so it's not MGM but Feigao which is toasted now... :cry:

Anyway, I ordered two of those KD36-74-15XL 1100kv motors from HobbyCity. They're a bit on the low side on kv, but hopefully I'll get over the wintertime with them. Together with 6S & Kershaw transmission they'll prolly be just fine and motor temps should be atleast tolerable.

Here's few pics with my friends' brushless trucks, eRevo & Hobao Hyper ST:

http://janezki.pp.fi/grfx/savage_xl-e/P1040299_800.jpg

http://janezki.pp.fi/grfx/savage_xl-e/P1040298_800.jpg

Oh, doo540 - You can find the secret for my well survived Savage body when you look at the ground at those pics. :mdr:

Nice trio of brushless power !! Looks like the Savage was out of commission though?

Yup - no fun for me until next weekend (hopefully).

Kershaw said 2 weeks on his tranny, so I also picked up another stock 3 speed to get by with. I took my 3 speed apart tonight, the diff gear was miss about half of its teeth, the gear that rides next to the black plastic gear had exploded, nothing but little pieces left, and the top second gear was missing a chunk too. I'm thinking I can remake all the gears that exploded, out of stronger material and better design, but is anybody planning on running with the 3 speed?

BTW with a 50 tooth center diff and a 14 tooth pinion (truggy setup) I would be right back at the same mph as running the 3 speed with stock savage rearend.

I'm also interested to see what the flux has for a stronger drivetrain, I hope they surprise us with something that can take the punishment of the brushless motors.