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#1
03-21-2026, 10:52 PM
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Vent for 12 Bolt Rear
My 66 Lemans has a 12 Bolt rear from 66 Chevelle. The vent hole is in the center section and smaller than 3/8. The vent tubes Ive found all say for 3/8 hole. They all look the like the one Inline Tube sells, advertised as 64-81 Chevelle for 3/8 axle hole, and when I enter the make and model information, it says it wont fit. Where do I find one that fits?
https://ebay.us/m/9aymTa
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Will Rivera '69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress 66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here: https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb |
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#2
03-21-2026, 11:34 PM
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Original part number was 3820840.
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So long, farewell. |
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#3
03-22-2026, 07:58 AM
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Thank you- will give that a shot
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Will Rivera '69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress 66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here: https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb |
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#4
03-22-2026, 02:21 PM
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Check these:
https://www.firebirdcentral.com/Fire...nnmLQCDJyrfQgM http://www.nitemareperformance.com/1...breathers.html https://www.summitracing.com/parts/opg-c220128 https://www.summitracing.com/parts/oer-15771000 HTH |
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#5
03-22-2026, 03:50 PM
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I read on line the size is id is.375. Dorman makes one try local parts store. Also measure your hole, might be tight .375. I googled 12 bolt . 312 vent. Was talked about.
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#6
03-27-2026, 10:45 AM
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Quote:
Quote:
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Will Rivera '69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress 66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here: https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb |
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#7
03-27-2026, 03:30 PM
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This one might work for you.https://torqueking.com/products/3004...4NJ2eqcB1EtT2q
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#8
03-27-2026, 04:38 PM
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Thanks - just ordered! Hope it fits cause shipping was a big kick in the cojones!
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Will Rivera '69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress 66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here: https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb |
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#9
04-29-2026, 01:32 PM
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If ever in need of a new vent for a corporate 8.5 this is the one I bought for my 71 Olds 8.5 rear.
Part #1236317
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1964 Tempest Coupe LS3/4L70E/3.42 1964 Le Mans Convertible 421 HO/TH350/3.08 2002 WS6 Convertible LS1/4L60E/3.23 1966 VW Type 2 Single Cab Pickup 140hp 2276 1956 VW Type 2 Panel Van 36hp 1200 1957 VW Type 1 Beetle 180hp 2276 |
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#10
04-29-2026, 02:22 PM
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Quote:
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Will Rivera '69 Firebird, 400/461, 290 Eddy D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears '69 LeMans Vert, XS 350, #47 heads, TH400, 10 Bolt 3.23 gears, work in progress 66 Lemans, 455, 310 KRE D-Ports, HR 236/245, TH400, GV OD, 12 bolt 3.73 gears - see it here: https://youtu.be/RP_s1wJKm_Y?si=K0NZxoTyaGcj8Dcb |
| The Following User Says Thank You to grivera For This Useful Post: | ||
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