Blazer track widths from 1999:

• Drive: Front/Rear (inches)
• 2WD: 55.0/54.6
• 4WD: 57.2/55.1
• ZR2: 61.1/59.0

All Blazers have wider tracks at the front than the rear. For the 2WD it is 0.4" and for the regular 4WD and ZR2 it is 2.1".

 

I have a 4x4 4 door blazer none zr2 ( since they didnt make any 4 door zr2s), I installed the rear zr2 axle to widen the stance of the rear to match the front. I installed the front diff to have the matching gears...

 

Mine is a zr2... im running 34s.. i have those tuff country upper control arms... my back wheels dont stick out like the fronts... my body mounts are smushed on one side, so it rubs on the passenger side sometimes... thats another project tho... i was dead *** serious when i said i thought this was a good solve... i changed my cv axles 2 years ago, theyre already shredded-ish... the boots are split and i assume that because im probably cranked up, thats gonna keep happening 🤷‍♂️ its kinda the price u pay, right...

 

And the "wider" track comment was because when you search for "ZR2" parts everything says "wide track" 🙄 didnt really need the specs did we? 🤣🤔

 

For some people yea... maybe not you... its for the "general public"