TSB Harsh Ride info

I have 2010 DC TRD 4wd and printed the tsb listed here on the forum refering to the harsh ride and spring pack replacement.
Dealerships are a trip, I called the dealership where I bought my truck and told them I had a harsh ride when loaded and referred to the bulletin and then told him that I put a leveling kit on to try and straighten the issues. The service manager said
A) Even though my truck is listed on the bulletin didnt mean that they would automatically perform the upgrade.
B) He then told me that if I brought the truck in with the leveling kit on it he would void my warranty so if I brought it in for that TSB I would need to take the leveling kit back off. WTF

I called a second dealer and it was like I was speaking a foreign language to them when asking them about the TSB

I called a third dealer 51 miles away and the Asst Service Mgr(Jason) said bring it in and they would take care of it, they wanted to earn my business. I took it in today and told Jason I would like the rear spacer taken out that came with the leveling kit and the service pack installed he said let me look at it.
A little while later he came up to me and said your spring pack is ordered and we can install it on Thursday. Wahoo

Can anyone with a DC 4wd that has had this service pack installed tell me how the ride was affected without a load in it?????

 

I don't have 4wd. I thought it rode much better. More like a truck.

 

My prerunner 08 (same suspension) stiffened up the back a bit more... honestly it rode a lot better imo. Stiffened up some body roll on turns, was a bit harsher with no load over bumps (though, much more truck like instead of bouncy car like). Honestly I can't wait to get my '10 to have it... cause it's way to spongy.

It did raise the back up about 1.5" though so be prepaired for that.

Also keep in mind I was TRD already, so I already had the blisten's.

 

They are going to leave the 1.5" spacer(in the rear) out that came with the leveling kit so I am thinking the ride height should stay the same.
1.5" spacer out ---- new spring pack in = same ride height

Thanks for the feedback guys

 

Ah tru.dat forgot you said you had the leveling kit. Only thing I might caution is after using some loads a bit it'll droop back down a bit... ideally you'll want just a bit of front rake for it to work out in the end.

 

When I put the leveling kit on the truck it caused a very slight drivetrain vibration for about 2 seconds at take-off. The cause of that was obviously me adding the 1.5" spacer in the rear thus changing the pinion angle.
With the spacer gone and the spring pack in will my vibration go away?

 

My truck always had some form of vibration at various speeds, but I also had BFG All Terrain KO's on all 4 corners and drove it like I stole it...

 

I had it done and was worried about the resulting ride.... Do it! The ride just gets better!!

 

Ride feels slightly firmer, feels much better going over bumps
very glad i had it done

 

Ride does feel firmer like others have said but like it. Was quick and well worth it.

 

Don't have a 4x4, but after the TSB on my Prerunner, the rear suspension felt firmer and that was good, but to me it made it feel disconnected from the front. E.g., the front felt soft and the back firm, overall it felt like the front was washing out in certain circumstances. A set of the 5100s took care of that, and at .85 lift restored the stock rake.

 

Without a load it's a little stiff but rides like a truck. With a load it rides great. The stock 3 leaf springs are too soft.

 

I just had the TSB completed today and it felt a little stiffer in the rear (a good thing). Rides as I would expect a truck to ride, firm

 

Had the TSB on my '07 and loved the results. The back end hit the bump stops on every little bump with a 400 lb motorcycle in the bed before! If you actually use your truck as a truck, the TSB is worth doing.