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GRC Latest direct swap TRX-4 axle set

And I went silver. Just felt like something so pretty should stand out. Lol.


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I have the TFL-housings on my Defender/Hummer H1, so I want to try something else now..
I'm now reading and watching youtube videos on bump steer and I've gotten frightened.. :p

BTW: I'm going black if I decide to order, I like to scratch up things.. hehe :D
 
Bump steer can be extremely hard for a fast vehicle. It’s also Fairly easy to fix with the understanding of 3 link suspension. But like I said with a slow crawler it something you will never notice. The positives are way greater the the negative you’ll never see a performance decay from.


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IMG_7546.jpg
Got these in yesterday. Now I’m anxious for them to arrive. Lol. I’m 36 but feel like a kid. Lol.


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For what it's worth.. I'm 41 and just love throwing money into this black moneypit.. [emoji1787]


Sent fra min SM-G965F via Tapatalk
 
I feel the same way. I build custom chassis for people to supports my habit. Lol. I’ll momma knew what I spend on them she would prob leave me. Lmao!! I do plan on using these axles for mock up on a couple chassis. Then I’ll start a thread on a full custom build from the ground up for my personal rig. [emoji48][emoji1605]


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Brandon said:
Great in theory. From what I can tell they did not make any adjustments to keep the drag link and panhard the same length so you will end up with a stock (shorter) drag link resulting in less than ideal steering geometry.

Only solutions would be to move the servo, difficult because the required length would probably put it outside the frame rail. Or knuckles with the mounting location further out which kills ackerman and tire/wheel clearance. So you are stuck trying to mount the servo on the axle or just living with poor geometry.

I cant justify spending the money to make the suspension geometry worse...
Click to expand...

Did you notice the drag link is mounted in the new outer hole that was added to the steering mounting points on the axles. This corrects Ackerman angles when turning and requires the drag link to be longer which decreases the drag link angle. This change allows for a slightly longer track bar which in turn helps reduce the side to side movement of the axle during suspension travel and while flexing. Even if the track bar is slightly longer and if adds a tiny amount of bump steer it's not an issue since this is only a low speed vehicle. The trackbar mounting height might be slightly changed also which could easily correct the steering geometry some thus eliminating any added bump steer. I actually find this to be a non-issue for crawling, bump steer is only a real concern at speed anyways.

Correcting the Ackerman angle will improve crawling performance and the relocated shock mounts also increase side hilling stability.

They made many nice improvements beyond stock with their updates they did to the axle housing and knuckle design. If I hadn't bought their high clearance knuckle kit for my stock axles I would have bought these. I still might for my other TRX-4 however.
 
MentalGuru said:
Did you notice the drag link is mounted in the new outer hole that was added to the steering mounting points on the axles. This corrects Ackerman angles when turning and requires the drag link to be longer which decreases the drag link angle. This change allows for a slightly longer track bar which in turn helps reduce the side to side movement of the axle during suspension travel and while flexing. Even if the track bar is slightly longer and if adds a tiny amount of bump steer it's not an issue since this is only a low speed vehicle. The trackbar mounting height might be slightly changed also which could easily correct the steering geometry some thus eliminating any added bump steer. I actually find this to be a non-issue for crawling, bump steer is only a real concern at speed anyways.



Correcting the Ackerman angle will improve crawling performance and the relocated shock mounts also increase side hilling stability.



They made many nice improvements beyond stock with their updates they did to the axle housing and knuckle design. If I hadn't bought their high clearance knuckle kit for my stock axles I would have bought these. I still might for my other TRX-4 however.
Click to expand...



Well put. And the shock mount holes are actually my favorite feature. That creates tons of stability.


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MentalGuru said:
Did you notice the drag link is mounted in the new outer hole that was added to the steering mounting points on the axles. This corrects Ackerman angles when turning and requires the drag link to be longer which decreases the drag link angle. This change allows for a slightly longer track bar which in turn helps reduce the side to side movement of the axle during suspension travel and while flexing. Even if the track bar is slightly longer and if adds a tiny amount of bump steer it's not an issue since this is only a low speed vehicle. The trackbar mounting height might be slightly changed also which could easily correct the steering geometry some thus eliminating any added bump steer. I actually find this to be a non-issue for crawling, bump steer is only a real concern at speed anyways.



Correcting the Ackerman angle will improve crawling performance and the relocated shock mounts also increase side hilling stability.



They made many nice improvements beyond stock with their updates they did to the axle housing and knuckle design. If I hadn't bought their high clearance knuckle kit for my stock axles I would have bought these. I still might for my other TRX-4 however.
Click to expand...
Thank you very much..
Now I'm even more confused, but this seems like a good turnoit after all then..
Man I'm not getting any sleep tonight..

Sent fra min SM-G965F via Tapatalk
 
MentalGuru said:
Did you notice the drag link is mounted in the new outer hole that was added to the steering mounting points on the axles. This corrects Ackerman angles when turning and requires the drag link to be longer which decreases the drag link angle. This change allows for a slightly longer track bar which in turn helps reduce the side to side movement of the axle during suspension travel and while flexing. Even if the track bar is slightly longer and if adds a tiny amount of bump steer it's not an issue since this is only a low speed vehicle. The trackbar mounting height might be slightly changed also which could easily correct the steering geometry some thus eliminating any added bump steer. I actually find this to be a non-issue for crawling, bump steer is only a real concern at speed anyways.
Click to expand...

Pretty sure the guy who designs scale trucks for a living gets how steering geometry works.
 
MentalGuru said:
Just buy a set, you'll sleep fine tonight then. "thumbsup"
Click to expand...

I didn't get this message before I fell asleep, and I for sure didn't sleep any good.. :D
But I guess I'll sleep like an infant tonight, the order for a black set is effected and I'm allready waiting for it to arrive.. :D
 
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