5Lug coilovers

I will or can agree with the rear spring/s statement about X-runner and 3rd. Gen springs being close to the same ride height and rate.
It’s like I explained in the PM / DM that you need to lower the shock settings. But I would try 1C w/ 2R on the rear.
As for the front springs You should get 25 to 30% sag in a coil-over spring. So your 10” springs should be shorter than 7.5” to 7” long under compression. So the new 12” springs should be 3 to 3.6” shorter than 12”/inches.
Or 9 to about 8 3/8 of an inch long. Measure both sides and divide/average

 

I run my rears at 0C and 2R with no issue. If you look at the tuning chart that comes with the Vikings, posted above, it actually says to set the rear compression between 0-3 for street use.

I've found from swapping the rear springs multiple times that the 4x4 springs feel softer than the stocks. They sag more under the load of my tonneau cover. Enough so that I switched to 2" blocks instead of the DJM 3" so that the differential would stop slamming into the underside of the bed. I do have pre-TSB rear leaf springs so they may be softer than ones built after the redesigned springs came out.

 

Oh Hell Yes there’s a major difference in the rear springs you have and the later leafs!!
The early rear leafs were mush!

 

@gstodd @hayrider2.0
So you guys are saying the 4x4 leafs are softer than then original 2 pack leaf springs found on the x runner?

I also put the rear to 0C 2R and started noticing more bounce/stiffness from the rear. It could be that the front springs are too stiff and that translates to the rear?? I do have the 450 lb springs coming in this week so i can test if the front springs are too stiff or the rear 4x4 leafs that i installed into the x runner.

Dont like the fact that once I take a hard turn or round about, the truck starts to bounce. Mainly from the rear i believe.

 

Yeah, I sort of figured they were softer than the redesigned ones. They work great for me as I don't need as much stiffness in the rear now that I'm running a rear sway bar. GIVes me the right combination of softness and handling.

I don't know how the spring rate of the current 4x4 leaf springs compare to the stock X-runner ones. I do know that my pre-TSB 4x4 leaf springs are softer than my stock base model leaf springs. Since you have an additional chassis brace in the rear of your truck and stiffer springs my settings may be too stiff of a ride for your truck. Also I'm coming from a slammed Scion xB that had every imaginable chassis/suspension brace and poly bushings on all of it with a 225/30R20 wheel/tire combo, so I'm used to a very stiff ride. The only saving grace was that I was on air so the lower I got the softer the spring rate got.

 

Any fitment issues with mustang wheels? I know the bolt patterns match, but does the hub circumference or different offset cause any rubbing?

 

The mustang hub bore is 70.3 so hub centric rings to drop it to 60.1 are probably in order.

Since I don't think hayrider has the truck on the ground and driving yet I will comment on how my fronts fit. With 20x8.5 +48 wheels and 255/30R20 tires everything clear up until I try to turn to full lock. The tires start to rub about 1/8 of a turn from full lock on the forward inside portion of the tire. Not bad but immediately noticeable when trying to do tight parking lot maneuvers. I'll be putting a 10-15mm spacer on mine since I still sunk in slightly from the fender lip.

 

Not really needed. The lug nuts will center the rim on the hub. Unless the mustang wheels don't use the same lugs nuts as stock? Then you would probably need the hub centric rings. I haven't had any problems with the Volks on my x-runner without running rings and the center bore is 70-72, I forget exactly.

 

Sorry guys I just saw this. Been looking for a new casa as we are now officially OLD‼️ And looking to leave the heat of the Phoenix area. But this time we are getting a 2 bed 2.5 bath w/ 3 to 3.5 car garage. And finding a unicorn is next to impossible. We found a 4 bed w/ a 3 car garage. There’s a bedroom next to the garage so the wall is coming out along with the door from the house into the bedroom then frame in and insulate. Now I have a work space in the garage. Then there’s another bedroom next to the kitchen & great room. We are going to remove the door from the hallway and add two French doors entering from the great room, will be an office for my wife. Ok done fantasizing!

Absolutely NO rubbing issues from the Mustang wheels‼️ But they are heavy as Hell!
You can order hub rings from Amazon for about $10.
I will say I like the fitment of the Infiniti G37 19 x 8.5 w/43 and 19 x 9 w/ 45 better! Plus the outer barrel of the Infiniti / Enkei wheel is roll forged! Makes the wheel a lot lighter and stronger.

 

@Slowtaco97 any feedback on the new front springs yet?

 

@hayrider2.0 i have not installed the springs yet as I have purchased my first home and doing small renovations. I plan to swap them out early next year while adjusting the shocks I have currently. In addition, I need the upper and lower control arms for proper alignment. So far I have the fronts to 10C 13R and rears 7C 4R. Still bouncy but better than it was previously

 

I just installed my Viking shocks, front and rear. Running 650 springs in front and have 4x4 leafs in the rear. Ride is really good for a Handling setting, per Viking's document on it.

I suggest changing your C/R settings at each end. Your front settings look ok, I have mine at 8C and 12R. Drop your C by 2 and the R by 1.

Your rear setting are out of whack tho. Per Viking, the rebound setting, R, should be roughly 2 to 6 clocks higher than compression, C. You have 7C and 4R, so you went too low on the rebound. I'm running 6C and 8R currently.

You should do 2 clicks whenever you change settings and then a single click for fine tuning.

 

@xtremewlr Thanks for the input. Do you have an X or non X?

I might be one of the outliers because I feel that I get less bounce when I don't have any rebound and just compression. I was driving for a while with 7C and 0R in the back for some time and it seemed less bouncy. I changed to your recommended setting in the rear (6c 8r) and the ride was wayyy to bouncy. I dropped down to 6c and 4r and it got better. What are yall thoughts?

 

I have a 2012 Xrunner. I'm also running the 4x4 leafs.

Are your shocks new? Higher compression should be more bouncy. It makes it harder for the shock to compress over bumps. Rebound makes the shock extend back out more slowly. Maybe more controlled is the better description? Compression knob should be on the left side and the rebound on right. Makes me wonder if your knobs are on the wrong side somehow.

 

Nice, another X.
To my knowledge the shocks are new lol. And if they are the same as everyone else's, my compression knob is on the left and rebound on the right. I have a suspicion that my traction bar is making my rear more stiff then it needs to be

 

I also don't know if me being lowered and not having the lowered control arms from djm is also playing a part.

 

Shouldn't be. Your only lowered from the Viking shocks? That's what I'm at and only dropped an inch in the front. Rear is still basically stock height. I can't tell if you have blocks in the rear or not but if you do, that could also contribute to the harsher ride from what others have posted.

I have CalTrac bars to install still as well. What do you have for traction bars?

 

I have to disagree with this now that I have my Vikings installed with 650 springs on the front. @Slowtaco97 has a Xrunner like I do, so the V6 weighs more than the 4 banger that your truck had. I would agree that the 650 springs are probably too much for a 4 banger single cab like yours. You might find you need those tho, once you have the LS swap completed and driving. The Vikings with 650 springs work great in my truck and the ride is about perfect. I also have the additional weight of a supercharger under the hood, so maybe that makes the difference.

 

Curious as to why you mounted the front shocks upside down? Just to make adjustment and knob access easier or was it for clearance issues? Obviously you haven't had issues running them like that, which is cool.

 

My suspension setup is:
Viking coilovers in front
Viking shocks in the rear with a 2inch drop block.
3rd gen 4x4 rear leaf springs
12 performance front and rear sways
Urd traction bar

The drop in front were only an inch and rear of course were 2 inches due to blocks