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mistercrash · 07.13.2010, 02:30 PM

So I have a snapped shock shaft and a bent one. While I'm waiting for the new shafts to arrive and start playing with my truck again, I searched the web to find stronger shock shafts. I couldn't find any. I'm thinking that 5 mm shock shafts would be stronger then the original 4 mm shock shafts. Problems would be, where to find them and how to make them work in the shock cartridges.

Is there any manufacturer that makes 5 mm shock shafts and cartridges? If you know of any, please tell me.

In the meantime, I started looking at the stuff I have in the garage to try to make my own. My E-Revo's pushrods are 5 mm in diameter and are about the right length. Just a little too long. They have M4 threads on each end.

So I grinded one end to make it short enough to match the LST shock shaft. The center hole of the shock piston would have to be drilled to 4 mm and a 4 mm washer with a 4 mm lock nut would be used to secure the piston to the shaft. Then to shorten the opposite end to match the length and put some M5 X 8 threads on the shaft.

With the shock piston drilled to 4 mm and the shock ball end drilled to 4.2 mm, this is what it looks like assembled, with the stock assembly next to it for comparison.

The shock cartridge has to be disassembled to enlarge the center holes of the cartridge and the snap cap to 4 mm. The spacer between the two O rings inside the cartridge either has to be drilled or a new spacer has to be found or fabricated. I had a spacer with a 4 mm hole in the middle but it didn't have the right length so I cut it to match the length of the stock one as close as possible.

I was able to squeeze the new 5 mm shaft in the cartridge using the stock O rings but it is too tight so a new set of O rings with a 5 mm ID and 2 mm cross section (9 mm OD) would be needed. I could get durable Viton O rings for cheap from this guy on ebay.

http://cgi.ebay.com/10-x-Viton-o-rin...item4145e04d6e

So what do you think? I made one shaft to see if it could be done without to much trouble. Would this be something that would benefit the LST?

	(#5)
mistercrash Guelph, Canada, eh! Offline Posts: 1,083 Join Date: Sep 2007 Location: Guelph, Ontario, Canada	07.13.2010, 02:30 PM So I have a snapped shock shaft and a bent one. While I'm waiting for the new shafts to arrive and start playing with my truck again, I searched the web to find stronger shock shafts. I couldn't find any. I'm thinking that 5 mm shock shafts would be stronger then the original 4 mm shock shafts. Problems would be, where to find them and how to make them work in the shock cartridges. Is there any manufacturer that makes 5 mm shock shafts and cartridges? If you know of any, please tell me. In the meantime, I started looking at the stuff I have in the garage to try to make my own. My E-Revo's pushrods are 5 mm in diameter and are about the right length. Just a little too long. They have M4 threads on each end. So I grinded one end to make it short enough to match the LST shock shaft. The center hole of the shock piston would have to be drilled to 4 mm and a 4 mm washer with a 4 mm lock nut would be used to secure the piston to the shaft. Then to shorten the opposite end to match the length and put some M5 X 8 threads on the shaft. With the shock piston drilled to 4 mm and the shock ball end drilled to 4.2 mm, this is what it looks like assembled, with the stock assembly next to it for comparison. The shock cartridge has to be disassembled to enlarge the center holes of the cartridge and the snap cap to 4 mm. The spacer between the two O rings inside the cartridge either has to be drilled or a new spacer has to be found or fabricated. I had a spacer with a 4 mm hole in the middle but it didn't have the right length so I cut it to match the length of the stock one as close as possible. I was able to squeeze the new 5 mm shaft in the cartridge using the stock O rings but it is too tight so a new set of O rings with a 5 mm ID and 2 mm cross section (9 mm OD) would be needed. I could get durable Viton O rings for cheap from this guy on ebay. http://cgi.ebay.com/10-x-Viton-o-rin...item4145e04d6e So what do you think? I made one shaft to see if it could be done without to much trouble. Would this be something that would benefit the LST? No brain, no headaches.