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Titanium universal drive shafts

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SunnyD

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Sup fellas

Have any of u guys tryed out the GPM titanium universal center driveshafts out? if so what do u think about them? (pros&cons) i really want to replace the stock center dogbones with a universal set but with something really strong, any recommendations other then titanium?. so far I'm running a pair of Dynamite CVD's on the front of my ride but would like to get a set for the rear & a set of center universals, is titanium the way to go?

heres a link @ the set I'm looking @
http://www.hobbyetc.com/cgi-bin/item.cgi?part_id=25381

Thx in Advance
 
i never had a problem with my stocks i have a set of regular steel cvd's for the center and i was going to change them when the stocks broke but they seem to be holding up i would hate to change them then have problems!!!
 
I bought the GPM steel axles like that for my maxx. The ears on the dogbone side wore off in about 1/2 gallon of use. I drilled them out and used some little hardened steel pins that I found at the hardware store. Now I have about 4 gallons on them and they look as good as new.

I tried buying the titanium ones, but they were out of stock and ended up with the steel ones.
 
cool beans olds, thats what i needed to know, so titanium it is but like u said "if i can find it in stock" been kinda hard to find. so if steel works then titanium should be fine:) thx for your feedback
 
After trying to buy them, I was disuaded anyway. Someone mentioned the fact that titanium has a relatively low sheer point. Instead of twisting a little like steel, they may be more likely to shatter.
 
olds97_lss said:
The ears on the dogbone side wore off in about 1/2 gallon of use. I drilled them out and used some little hardened steel pins that I found at the hardware store.
I have that problem with my GPM universal dogbones for the HPI NMT. Could you please tell me what those hardened steel pins are sold as (at the hardware store)? I could use some of that.
 
I had the same problem of cutting off the ears w/ the GPM ones on my T-Maxx. You will be better of getting the HPI Heavy Duty Dogbones and Cups.
 
Go to: http://www.mcmaster.com/
Type into the search: hardened steel standard dowel pin

It will take you directly to the kind of thing that I bought. McMaster stuff is pretty good. I buy my metric bolts and nuts there. I found the dowel pins at my local hardware store, but with mcmaster, you should be able to figure out what you want, print it, take it to a hardware store (probably not menards, more like ACE) and find it.

Or you can just order it.

I tried to give you a link, but their site is set up in panes. The link at the top stays the same all the time regardless where you are at in their online listings.
 
Digital Liquid said:
I had the same problem of cutting off the ears w/ the GPM ones on my T-Maxx. You will be better of getting the HPI Heavy Duty Dogbones and Cups.
I checked Tower for those heavy duty bones, but there's none for the Nitro MT. The other choice I have is the CVDs...

Edit: Thank you for the link, olds^^ So, after your drill out the worn pin, do you just (literally) hammer the new one in?
 
Last edited:
You have to be careful when drilling. It's best if you can punch out the old pin and find one that fit's tight.

I actually bought too small of a pin when I did it, so I punched out the old one, heated the little ball end up until it was red hot with a mini butane torch, then lightly tapped it with a hammer to squish it a little. Then I drove the pin in, took a prick punch and heated the hole thing up red hot again, then put a dent in each side of the ball to hold it in. Then, again I heated it red hot, then stuck it in water to get some of the temper back.

I had one break on me after about a gallon of use. The actual ball end that I hammered and what not got a crack in it and fell apart. It was the first one I did and I didn't do all the heating I did above to it. I was more hasty and didn't take my time.

The two that I'm running have been taking the abuse of a OS 21 RG for about 2 gallons now on my 2wd 21 maxx and are holding up just fine.
 
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