They were used to simplify the BOM (bill of materials) and making the front and back sections of the truck uniform thus making it "easier for assembly".
Also lets you adjust toe in/ out. But that's not necessary.
No, one 85238 is two upper and two lower arms (I realize now how my wording may have been confusing). For a complete set, you need two 85238.
The link I posted for you earlier shows this.
Yes, for HPI parts, any part numbers with a dash are part of an assembly or package of parts. HPI# 85238 is one pair of upper and lower arms.
https://www.hpiracing.com/en/part/85238
As long as you learn from the situation, it's not that bad.
That is...unless forgetting to loctite something caused you to drive into on-coming traffic....which caused a dozen car pileup...which causes hundreds of thousands in lawyer and medical bills....which then causes you to lose your RCs...
The colors of the springs give you the spring rate. This is brand/ model specific though.
Aluminum shock bodies are great, less distortion in the shock body causing worse performance. That being said, if you go aluminum, it may be tougher to seal the shock. But that shouln't be an issue with...
Unless you have a well groomed place to drive, most RCs tend to just get stuck. I've always wanted to gets some paddles and skis on an RC and try it out though.
They're a bit like dogs. Can let them run around on the floor or climb all over ya. I've even seen people put leashes on them and take them for "walks". haha
Got a blood red bearded dragon and a Dachshund. I'll try to find a picture of the dog, but here a picture of my dragons when I had two. Now only have the bigger one in front.
I guess I'm not terribly shocked to see it is unavailable/ discontinued. HPI, as well as most other RC brands have been slowly but surely moving away from nitro. With HPI's current position they seem to have issue just getting out their well selling kits/ parts.
Make sure it's the blue one!
If you're not sure, it's better to ask a "stupid" question than to make a "stupid" mistake! We've all been where you are and are more than willing to help.
Completely disassembling your savage could be a learning experience, but largely unnecessary. I would loctite all screws going into metal (don't do screws going into plastic, doesn't work and usually eats away the plastic) that you can easily get to.
A couple that I will count as must do...
Swap the throttle and steering servo on the receiver. If the steering works after that (using the throttle on the remote) your receiver needs replacing.