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[GMCnet] Building a GMC Again. What's the best sealent between the rear fenders and floor. [message #333565]

Sat, 16 June 2018 00:08

BobDunahugh

Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA

Karma: 11

Senior Member

Never had leak. Don't want to start with this one. All the rear suspension is out. So it's a great time to make sure that leaks are prevented from occurring in the future. Then install the rebuilt 78 suspension with the new KYB shocks. Running into no rusty bolts/parts. Had no problems with brake line fittings. Bob Dunahugh
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Re: [GMCnet] Building a GMC Again. What's the best sealent between the rear fenders and floor. [message #333566 is a reply to message #333565]

Sat, 16 June 2018 00:24

James Hupy

Messages: 6806
Registered: May 2010

Karma: -62

Senior Member

The last coach I sealed the wheel wells with Rustoleum sealant. Comes in a
big spray can, what I used was black. Kinda foams up a bit. Dries like
neoprene. Couldn't tell you how it holds up.
Jim Hupy

On Fri, Jun 15, 2018, 10:20 PM James Hupy wrote:

> Well, it's got to go well some of the time.
> Jim Hupy
>
> On Fri, Jun 15, 2018, 10:09 PM Bob Dunahugh wrote:
>
>>
>> Never had leak. Don't want to start with this one. All the rear
>> suspension is out. So it's a great time to make sure that leaks are
>> prevented from occurring in the future. Then install the rebuilt 78
>> suspension with the new KYB shocks. Running into no rusty bolts/parts. Had
>> no problems with brake line fittings. Bob Dunahugh
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>>
>
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Re: [GMCnet] Building a GMC Again. What's the best sealent between the rear fenders and floor. [message #333567 is a reply to message #333565]

Sat, 16 June 2018 00:20

James Hupy

Messages: 6806
Registered: May 2010

Karma: -62

Senior Member

Well, it's got to go well some of the time.
Jim Hupy

On Fri, Jun 15, 2018, 10:09 PM Bob Dunahugh wrote:

>
> Never had leak. Don't want to start with this one. All the rear
> suspension is out. So it's a great time to make sure that leaks are
> prevented from occurring in the future. Then install the rebuilt 78
> suspension with the new KYB shocks. Running into no rusty bolts/parts. Had
> no problems with brake line fittings. Bob Dunahugh
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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Re: [GMCnet] Building a GMC Again. What's the best sealent between the rear fenders and floor. [message #333647 is a reply to message #333565]

Mon, 18 June 2018 07:46

USAussie

Messages: 15912
Registered: July 2007
Location: Sydney, Australia

Karma: 6

Senior Member

Bob,

I'd use 3M-5200 adhesive / sealant:

https://www.3m.com/3M/en_US/company-us/all-3m-products/~/3M-Marine-Adhesive-Sealant-5200/?N=5002385+3293241623&rt=rud

Regards,
Rob M.
The Pedantic Mechanic
Sydney, Australia
AUS '75 Avion - The Blue Streak TZE365V100428
USA '75 Avion - Double Trouble TZE365V100426
USA '77 Kingsley - TZE 267V100808

-----Original Message-----
From: Gmclist [mailto:gmclist-bounces@list.gmcnet.org] On Behalf Of Bob Dunahugh
Sent: Saturday, June 16, 2018 12:08 AM
To: gmclist@list.gmcnet.org
Subject: [GMCnet] Building a GMC Again. What's the best sealent between the rear fenders and floor.

Never had leak. Don't want to start with this one. All the rear suspension is out. So it's a great time to make sure that leaks
are prevented from occurring in the future. Then install the rebuilt 78 suspension with the new KYB shocks. Running into no rusty
bolts/parts. Had no problems with brake line fittings. Bob Dunahugh
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Regards, Rob M. (USAussie) The Pedantic Mechanic Sydney, Australia '75 Avion - AUS - The Blue Streak TZE365V100428 '75 Avion - USA - Double Trouble TZE365V100426

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