Rear End Lean and Uneven Shocks

I had a ton of free time last month and it was long overdue so I decided to revamp my whole suspension and tighten my steering. After spending so much time under the truck and changing the ride height I'm paying more attention to details about how it sits and such.

I noticed my passenger side rear bumper is sitting about half an inch lower than the driver side. So it's NOT tundra lean. Even though I do have a bit of that in the front. Then I measure my shocks and one side is extended almost an inch more??

The leaf springs do look a little flat but they're even. It's almost like it's just dipping behind the axle if that makes sense.

Anyone have any ideas on what the issue could be? Maybe a bad body mount bushing?

08 Tundra DC 5.7L 4wd TRD Off Road with 160k

Front:
Bilstein 6112s top setting
coachbuilder shims(2 driver, 1 passenger)
Energy Suspension steering rack bushings

Rear:
Bilstein 5160s
Toytec 1.5 Shackles
Polyurethane leaf spring bushings
Coachbuilder carrier bearing drop kit
Coachbuilder abs/brake relocation brackets

Driver side shock: ~7.75" to center of nut


Passenger side shock: ~8.25" to center of nut


Driver side leaf to frame: ~6.5" to bottom of leaf


Passenger side leaf to from: ~6.5" to bottom of leaf

 

12+ year old truck with 160k miles, the springs are likely showing their age. Toyotas lean some anyway, add in age and miles and I think what you are seeing would be considered normal.

 

Measure the bumper lean full vs empty gas tank.

I agree though, 160k miles on relatively soft leaf springs, i would expect them to be worn out imo

 

With that much difference in shock extension do you think that’ll shorten the shock life?

 

Doubt it. They are both operating within their range. Is the shock angle the same left and right?

 

The shocks are mounted different. One is behind the axle and the other is ahead.

Measure from the axle housing to the frame on each side.

 

Unless you have coil overs or air assisted lift shocks, the rear shocks have nothing to do with ride height. All standard shocks do is control suspension rebound (bounce). Rear ride height is controlled by the springs/shackles and load placed on the rear of the truck. The difference in the amount of shock extension is a direct result of a difference in spring lift between left/right sides.

 

Thanks for the feedback. The leaf packs do look fairly flat. Looks like I'll be researching leaf spring replacement options. Thanks again guys