Actually they're not, but they are close enough where you can run them in conjunction with 5100's up front and be ok. The TRD Off Road Bilstein's are the 4600 series.The stock TRD Bilstein shocks in the back are the same as 5100s. Depends on whether the ones you have are in good shape or not.
So they're just different on the outside?Which are the same as the 5100s internally.
"The Similarities: The 5100 series and the Heavy Duty shocks use the same technology internally. Both use the same internal valving and at stock height will ride the same (shocks for lifted trucks may use different valving settings in order to accommodate the extra weight of larger tires). Both shocks are pressurized with 360 psi of nitrogen to prevent shock fade and foaming of the shock oil. The outer construction of both shocks is identical as well with an extruded metal body rather for maximum strength and top of the line seals. The 5100 series and Heavy Duty 4600 series are both covered under Bilstein's limited lifetime warranty that protects against any manufacturer defects for the life of the shock."So they're just different on the outside?
All 2007+ except for the Pro.Would the 5100s work just as well for a CrewMax truck? I have a 2014 TRD CrewMax that I'd like to level out.
The Rancho level-it kit works better than the QL. I had the QL before, and had to change my stock springs over to get proper lift on my 2010 RW CM.All 2007+ except for the Pro.
There are other options too. You might want to look into Rancho Quicklift. They are a little more expensive ($176 ea), but come with springs already installed (will save something on installation costs), plus they have adjustable damping which is nice. They claim 2.25" lift vs standard. You would get a little less on TRD Crew, but ~2" is perfect IMO.
Note they have a left and right. Plus they say not for a TRD or Crew, but that just means the lift will be less than 2.25".
1.25" was my gain on the RW CM w/5.7.How much lift did you get with the QLs? 2" is plenty IMO, unless you are getting UCAs. They are spec'd to give 2.25" of lift on the non-TRD, non-Crew trucks. Toyota has a different spring for pretty much every version of the Tundra. Slightly different lengths I guess to handle different weight. https://parts.olathetoyota.com/auto...ne/front-suspension-cat/front-suspension-scat
A person could always add some Coachbuilder shims if they wanted more height. Big bonus of the QLs is the damping adjustment so you can dial your ride.