i was wondering if i could install a rear DA sway bar in my 90 civic
can you guys tell me what ill need to do and pics would be very good

 

You can mount an 15?mm SI sway and if that one wouldn't be thick enough for you you could mount an ASR brace and matching 24 or 32mm hollow sway.

I don't think a DA swaybar will fit (good), but I could be mistaken.

You should do a search here on HT, ther's plenty info abound.

 

Factory Sway bar sizes
front. the letter is painted in the middle of the swaybar and embossed on the side of the bushing.

F = 19mm solid - all 4 door civics and wagon
G = 17.2mm hollow - CRX HF (Civic STD had no front swaybar)
H = 18mm solid - 3dr Civic/CRX DX, Si
K = 23mm hollow - DA integra

rear. the number is embossed on the side of the bushing. I believe they are all solid.

13.0mm = 3dr Civic Si
15.0mm = CRX Si
14.7mm = 3dr DA integra (doesnt fit EF perfectly, see explanation below)
15.9mm = 4dr DA integra (doesnt fit EF perfectly, see explanation below)
16.0mm = JDM SiR / EDM VTi CRX w/ B16 (uses a 15.9mm bushing)


You can see these posts on the crx FAQ for pics
https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/how-i-put-da-rear-sway-bar-my-dx-hatch-pics-galore-1146145/
https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/diy-adding-oem-sway-bar-your-std-dx-hatchback-2649526/

 

weird as the rear sway bar that i have looks different like without the u bends
it just makes 90 degree bends and its 14mm

 

not a DA swaybar then...

btw, DA and EF hardware are different too. the angle bracket is completely different, but if youre fabbing and cutting holes or whatever, then it doesnt matter.