Interchange question - Chevy Impala SS Forum
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post #1 of 8 (permalink) Old 06-01-2018, 11:25 PM Thread Starter
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Interchange question

For as long as I've had it, my '94 Fleetwood has had one of its splash shields underneath the car busted up and held together by an assortment of zip ties, one super oversized bolt with a stack of washers, and other shenanigans. (Previous owner did it, don't blame me.) I looked off and on for a good used splash shield and over the winter I found a perfect one on ebay. I just tried to swap it out tonight and quickly discovered it doesn't quite fit.

It came from a b-body, so my question is: are the b-body splash shields different from the d-body splash shields? One of the two bolt holes that mate up to the wheel well is definitely in a different location, and overall it just doesn't seem to line up correctly. The little air dam that attaches underneath it also doesn't seem to line up correctly. Can anyone shed some light on this? I don't know why but I honestly thought the splash shields were interchangeable.

On a side note, I may be in the market for a driver side Fleetwood splash shield and I may also have a near mint driver side b-body splash shield for sale once I figure out what my malfunction is.

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post #2 of 8 (permalink) Old 06-02-2018, 07:00 AM
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I'm not sure of the interchange of these but here are some for Caprice/Impala.
Repops Automotive Reproductions
Classic Industries has just the splash shields. Maybe you can compare the pics to what you need or trim to fit. That is if the ones here are larger.

Mark: Snowman-33

93 9C1: Work & Cubic Ca$h This started with a new headlight and fender Celeritas In Conficiendo
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post #3 of 8 (permalink) Old 06-02-2018, 08:18 AM
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Yes Schlik- they are different as you found. In more ways than one. D-body were made from exploding rigid plastic, and other B-bodies from more malleable stuff. However the good news. The PO to my current FWB installed a RMS version (apparently diff. enough from Chevy to work) and got the curved dam to line up right with a small clearance slit (un-noticable).



Are those called a 'fender outer extension'? To think I actually bought one from Dal for like $30. I shoulda' gotten 10. Could sell them now for more than a LT-4 knock module eh.
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\'96SS SOB: SSRI, Herter Tune, Tri-Y II, , 3000 Edge, F/HO bars, METCO extendeds with CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear). Finally, wait for it... LT-4 knock module!
\'96FWB BUW-Butt Ugly White: PCMPerformance tune, HDFA w/ swissed filter, 1/2 SLP s.s. catback with H- and Flow Super 50s, oem opti rebuilt 3 times, SS Bars, METCO LCA, Airlift 1000, Monroe SS, PowerTrax No-Slip, CTS wheels with +1 rubber. Finally, yes again... LT-4 knock module!
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post #4 of 8 (permalink) Old 06-03-2018, 12:43 AM Thread Starter
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Guess I can look for a Roady one too, there aren't any on ebay at the moment, but I haven't posted in the buy/sale forum on here yet. You aren't kidding on the exploding plastic, while removing it I wasn't worried about the damaged one and I was also in a little bit of a hurry, I ended up getting that thing out in about 20 pieces. I couldn't believe how brittle it was, it was if every time I sneezed or looked at it funny, it broke somewhere else. I did piece enough of it back together to pull the part number and find it on one of those gm parts websites, but long since out of production and so far no luck finding one floating around on a shelf somewhere. They refer to them as an inner fender extension or front extension depending on where you're looking. Lol on the LT4 knock modules, I may or may not have a few of those floating around that I've scored cheap. I think I'll hold on to them though and refer to them as my retirement plan.

https://www.gmpartsdirect.com/oem-pa...nsion-10214352

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post #5 of 8 (permalink) Old 06-03-2018, 01:20 AM Thread Starter
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Quote:
Originally Posted by 96 Black View Post
Yes Schlik- they are different as you found. In more ways than one. D-body were made from exploding rigid plastic, and other B-bodies from more malleable stuff. However the good news. The PO to my current FWB installed a RMS version (apparently diff. enough from Chevy to work) and got the curved dam to line up right with a small clearance slit (un-noticable).



Are those called a 'fender outer extension'? To think I actually bought one from Dal for like $30. I shoulda' gotten 10. Could sell them now for more than a LT-4 knock module eh.
You'll never believe this, but of the variations out there in the wild, the driver side roadmaster sedan one is still available new, and the price doesn't completely suck. Unfortunately the passenger side isn't, so I can't just replace both and eliminate the explody ones altogether, but at least I can get one. If possible would you be able to get some pics of yours so I can see what they had to mod to make it fit?

Something witty.

Last edited by schlicky13; 06-03-2018 at 01:22 AM.
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post #6 of 8 (permalink) Old 06-03-2018, 10:23 AM
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Completely unnoticeable normally. Moving the outermost mount point inboard an inch would move the outside of that piece away from the fender. I don't recall whether that looked doable or not, but have not acted on it as yet.
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\'96SS SOB: SSRI, Herter Tune, Tri-Y II, , 3000 Edge, F/HO bars, METCO extendeds with CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear). Finally, wait for it... LT-4 knock module!
\'96FWB BUW-Butt Ugly White: PCMPerformance tune, HDFA w/ swissed filter, 1/2 SLP s.s. catback with H- and Flow Super 50s, oem opti rebuilt 3 times, SS Bars, METCO LCA, Airlift 1000, Monroe SS, PowerTrax No-Slip, CTS wheels with +1 rubber. Finally, yes again... LT-4 knock module!
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post #7 of 8 (permalink) Old 06-10-2018, 08:46 PM Thread Starter
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My next question is going to be, what the heck did they do around the wheel well? I got the Roadie version installed this afternoon (haven't modded the air dam yet, wanted to be sure my install was final first) and it's sort of all wrong in that spot. I think if I trim some material, I could bend the whole thing over and get the bottom bolt hole to line up, and I could probably make a hole for the second bolt, but the third will never reach and there will be a decent hole up there. For now the air dam is held up with a 3/8" spacer in between, it seemed happier that way. The next one over (can't see it) is a 1/4" spacer and just held up by a big zip tie. The rear most one isn't held by anything right now but is flat and tight to the shield. I could easily make new holes with a dremel if I wanted, but I don't want to mess the piece up until I'm certain I'm going to stick with it. I may hold out hope that I can find an original Caddy one.

Also, if anyone is looking to upgrade this hardware, 6mm long extruded u-nuts fit the openings and screw holes just fine. My local hardware store had those, and they had 6mm flanged bolts in various lengths. I bought a few lengths 20mm, 25mm, and 30mm I think and used whatever worked. I'll order stainless bolts later once this is finalized so they won't ever rust themselves together, which could be how mine was destroyed in the first place. Someone trying to take it apart with rusted/seized hardware and wrecking the exploding plastic could easily account for the cobbled together way it was still attached-ish to the car. FYI, it is required to remove this splash shield to service the pump for the air shocks. Once I had mine removed I discovered a rubber hose to that had broken and became detached. 7/32" vacuum hose seemed to be an identical match.
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Something witty.
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post #8 of 8 (permalink) Old 06-17-2018, 07:22 AM
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Lookat Post #8

VERY interesting


https://www.impalassforum.com/vBullet...r-air-dam.html

\'96SS SOB: SSRI, Herter Tune, Tri-Y II, , 3000 Edge, F/HO bars, METCO extendeds with CV MMC, Bilsteins, currently Vredestein Ultrac Sessanta (315/35 rear). Finally, wait for it... LT-4 knock module!
\'96FWB BUW-Butt Ugly White: PCMPerformance tune, HDFA w/ swissed filter, 1/2 SLP s.s. catback with H- and Flow Super 50s, oem opti rebuilt 3 times, SS Bars, METCO LCA, Airlift 1000, Monroe SS, PowerTrax No-Slip, CTS wheels with +1 rubber. Finally, yes again... LT-4 knock module!
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