Hi all, I’ve got a 1993 ssei my dad passed down to me when I got my license, he bought it brand new and has been in the family ever since, I love that car to death but I’ve run into an issue for the last year and a half and I’ve got no clue what to do here. I’ve got a rusted corner of my subframe that’s completely gone, the rest is fine because the engine drips oil and coated the part that didn’t rust. I found a 1999 bonneville subframe new online, my question is will a 1999 subframe fit on my 1993, I know the engine series changed after 95 so I’m just nervous if I but this 1999 that it won’t fit on my 93. This is the link. Thanks all for the help
https://allusedparts.com/pontiac/bonnev ... rsubframe/
New subframe question
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My1993ssei
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- Year and Trim: 1993 ssei
- J Wikoff
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- Year and Trim: 1992 SSE
2009 G8 GT - Location: Central Illinois
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Re: New subframe question
I think 88 to 94 will work.
For what it's worth, I got one in great shape off eBay about 5 years ago shipped for around $250. I found several candidate listings, and chose one from a seller tied to a yard in a southern state.
https://www.car-part.com/cgi-bin/search ... ge=1&iKey=
Their links don't work well.
http://www.car-part.com. Search for k frame or engine cradle or subframe.
For what it's worth, I got one in great shape off eBay about 5 years ago shipped for around $250. I found several candidate listings, and chose one from a seller tied to a yard in a southern state.
https://www.car-part.com/cgi-bin/search ... ge=1&iKey=
Their links don't work well.
http://www.car-part.com. Search for k frame or engine cradle or subframe.

WHITE WHINE - 1992 SSE Supercharged 236.26 ci (.040 Over) 15.090 at 90.2 MPH on old engine w/ slipping trans & melted O2 sensor - Gen 3 M62 and matching TB, Gen 2 Pully, Zillamotorsports Ported LIM, YT 1.72 Roller Rockers, SII FPR & Injectors, Hypertech Thermomaster chip w/ 160 Thermo, TransGo Shift Kit, Infinity/Pioneer Speakers & a 10" Alpine Type R Sub, all the watts, 140 amp Alternator, Ricepipe CAI w/ heatshield, Pilot Angel Eye Foglights, Clear Corners, '02 17" Chrome Bent 5's, Magnaflow F-Body Muffler and Hi-flo Cat, Ceramic Coated Ported Exhaust Manifolds, Fan Override, Monroe Reflex struts, red calipers
2009 G8 GT - Sport Red Metallic, loaded, SOLO Axlebacks, Rotofab Intake, Tuned, autodim mirror, removed intake manifold cover, HSV GTS triple gauge pod, two tone red-hot shifter and HSV SuperSport steering wheel, GXP rear sway bar and diffuser, 3.45 diff and various Camaro suspension bits, LED Taillights
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My1993ssei
- LE Member
- Posts: 2
- Joined: Sun May 04, 2025 12:03 pm
- Year and Trim: 1993 ssei
Re: New subframe question
Awesome! Thanks a bunch for the help and direction to go, I’ll report back if I find anything or not, the poor girl has been mothballed for 1 1/2 years, I need her back on the road.

