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Projects 39 Pontiac Coupe (series 25 small body) build

Discussion in 'Traditional Hot Rods' started by AGELE55, Dec 7, 2019.

  1. 1971BB427
    Joined: Mar 6, 2010
    Posts: 7,267

    1971BB427
    Member
    from Oregon

    Give Joe at DiOrio's Old GM Parts here in Portland, Or. a call, and ask him if he knows how the Pontiac 1/4 windows are held in. If he doesn't know, then Joe Sr. surely will. Both know these old 30's and 40's GM cars better than anyone I know of.
    (503) 771-9416
     
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  2. oldsman41
    Joined: Jun 25, 2010
    Posts: 1,556

    oldsman41
    Member

    Mine is set in rubber don’t know about the earlier models remember mine is a 41
     
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  3. AGELE55
    Joined: Jan 4, 2018
    Posts: 428

    AGELE55
    Member

    But do you know how the rubber attaches to the body? Mine doesn’t have a flange, so it must be a type of U channel that fits around the glass and simply sits in the channel.
     
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  4. oldsman41
    Joined: Jun 25, 2010
    Posts: 1,556

    oldsman41
    Member

    Yep I believe that is how mine went in been 15 years or more since I put new rubber in.
     
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  5. carpok
    Joined: Dec 29, 2009
    Posts: 516

    carpok
    Member
    from Indy

    I think your on the right track on your quarter windows. A bit off topic but my 55 sedan has fixed quarter windows. Basically a u-shaped rubber with a small lip to seal on outer body. Rubber is pushed against inter body held in with six small L shaped brackets and inside garnish trim. Got the correct rubber from Steel rubber.
     

    Attached Files:

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  6. AGELE55
    Joined: Jan 4, 2018
    Posts: 428

    AGELE55
    Member

    Woot, woot. Finally found a reference for my quarter window rubber. It is indeed a u channel. I figured so, just needed a confirmation. Screenshot_20211023-181922_DuckDuckGo.jpg
     
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  7. oldsman41
    Joined: Jun 25, 2010
    Posts: 1,556

    oldsman41
    Member

    Good deal guy Steele rubber had them for my car hopefully the will have the poncho. If you need the seals for the vent window better start saving now.
     
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  8. AGELE55
    Joined: Jan 4, 2018
    Posts: 428

    AGELE55
    Member

    Yeah…the bad news is I have ZERO rubber with this project.
     
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  9. oldsman41
    Joined: Jun 25, 2010
    Posts: 1,556

    oldsman41
    Member

    One of the gear heads that hang out at the shop said rubber the right way might have your stuff he said they had good prices.
     
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  10. AGELE55
    Joined: Jan 4, 2018
    Posts: 428

    AGELE55
    Member

    Well, when it comes time to purchase glass and rubber, I foresee a “close my eyes and hand them my wallet” moment.
     
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  11. oldsman41
    Joined: Jun 25, 2010
    Posts: 1,556

    oldsman41
    Member

    Check out auto city classics on the glass had mine for about 175 bucks plus shipping. All side glass no windshield or back glass mine was in great shape
     
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  12. AGELE55
    Joined: Jan 4, 2018
    Posts: 428

    AGELE55
    Member

    So.. I'm heading to the salvage yard Friday to score a transmission for the Poncho. (I'm currently using a borrowed TH350 from the next door neighbor for mock up). So this brings up the next challenge.
    If I should decide to maintain the original 4.11 rearend, how do I adapt the pinion flange? It has the old flat flange and I assume I'll need to update to a modern u joint? Anyone been through this? 20211024_112002.jpg
     
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  13. AGELE55
    Joined: Jan 4, 2018
    Posts: 428

    AGELE55
    Member

    D40FB991-7315-4484-9405-773717C4A27D.jpeg Finally back on track…a little bit anyway.
    I’ve been slugging through issues with the front suspension, but now have everything disassembled, reworked, painted, and ready for reassembly.
    Without the engine in the car, I need weight on the frame to be able to jack the coil springs into place. (The engine is currently in pieces). So..I put a spicket into a 55 gallon drum and set it across the frame. At 8.3 lbs per gallon, then 55 gallons of water will give me 456 lbs. Should be plenty. After the springs are set, I’ll simply attach a garden hose and drain off the water. What could possibly go wrong?
     
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  14. buds56
    Joined: Dec 9, 2004
    Posts: 196

    buds56
    Member

    Not sure if you solved your old rear yoke issue from Oct, but Pontiac used that differential until 56. In 56 they switched to the more modern U-joint and that's the yoke you need. Good luck
     
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  15. Orn
    Joined: Jul 17, 2005
    Posts: 1,084

    Orn
    Member

    You need this conversion joint. I have this on my 1940 Olds and it works well.

    127722025_10215631334370966_7967694099019435124_n.jpg olds92.jpg
     
  16. AGELE55
    Joined: Jan 4, 2018
    Posts: 428

    AGELE55
    Member

    Excellent! Thanks!
     

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