Alright I know several people and many others that are constantly asking the difference in sway bar sizes from stock to different upgrades. I guess below is a list of sizes and if you have updated information please feel free to change the measurements. I will be updating the SE-R sway bars since I have one sitting here and a caliper at hand. When my SE-R rear sway bar arrives I will verify and update if needed.

So, the conclusion on the Sway Bar Specs are:

1) 2004-2006 Nissan Maxima O.E.M Sway Bars [F/R]

Front- 21mm
Rear- ????

2) 2004-2006 Nissan Altima SE-R O.E.M Sway Bars [F/R]

Front- 22.2mm (Updated measures 24.384 mm) (SAE .960)
Rear- 26.5mm (Updated measures 26.924 mm) (SAE 1.060)

FRONT PART#54611-ZB700
REAR PART# 56230-7Y007

3) 2004-2006 Nismo Sway Bars {fits the Altima SE-r & Maxima SE} [F/R]

Front- 24mm
Rear- 27mm


4) 2004-2006 Progress Rear Sway Bar for Nissan Altima SE-R & Maxima

Rear- 26.5mm

 

If anyone can add anything to this list or update some sizes just go ahead but make sure your information is accurate. PLEASE!

By the way you can get the Altima SE-R sway bars through your local Nissan dealer for about what you will buy them for online for with shipping.

Would this be a good sticky?