Mid Perch Issue

[HawkeyeRaptor1]

Hey guys, I wanted to run something past you before I called the dealership up. I had a mid perch done by a local dealership on Friday after I had Toyo Open Country M/T's put on with new wheels. Based on the threads I have read, I expected a little stiffer of a ride. This morning I went over some railroad tracks that I go over everyday on the way to work. The difference today is that my front end bounced a couple of times after going over the tracks, it never did that in the stock perch. Can anyone tell me if I should be concerned about my shocks? Thanks in advance for any input.

 

[Yukon Joe]

You changed more that the perch adjustment. So it's hard to say if it's just the perch or not.

What size wheel and tire combo did you go with? It may be affecting the front end response as well.

Yukon Joe
www.RUNRAPTORRUN.com

 

[HawkeyeRaptor1]

Other than the mid perch, the only other change was adding fuel wheels with 35x12.5x20 toyo M/T's in a +20 offset. Please don't flame me over putting 20's on a raptor, I absolutely love the way my truck looks now. I can't imagine those wheels would cause the suspension to "bounce" in mid perch as I thought it would firm up the ride, but I'm not a mechanic.

 

[Yukon Joe]

You now have less rubber between the truck and the road. Plus a stiffer shock at mid perch. I'd have to conclude that it's the combination of both.

You could try to lower your air pressure in the tires a few psi?

Yukon Joe
www.RUNRAPTORRUN.com

 

[srs]

I've got the same set up, except my offset is 0 on the wheels and I don't have the problem you mention at all. Ride is great.

 

[1stSFG]

Although, Joe, with the lower profile tire and perch spring stiffening it should be more of a harsh jolt than a "bouncing".

---------- Post added at 10:24 AM ---------- Previous post was at 10:22 AM ----------

I would take it back to the dealer and tell them there is an issue. Is it a quick harsh bounce or a spongy bounce?

 

[srs]

Should be a spongy bounce....

 

[Deleted member 12951]

Put stock wheels/tires back on as a test and then drive it over the tracks. That will tell you without a doubt one way or another.

 

[HawkeyeRaptor1]

It was a spongy bounce, about 3 bounces to be exact. I have run over those tracks every day for a year with the stock setup and the truck never reacted that way. That is why I became a bit concerned this morning. Thank you for all the input!

 

[1stSFG]

You're expectations should've been correct. A stiffer ride. And adding a lower profile tire means you lose some of the sidewall "flex" or absorption of the bump which should've made a bit more stiff.

---------- Post added at 11:17 AM ---------- Previous post was at 11:15 AM ----------

Have you looked at the shock body?