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#1
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1969 GP standard rear axle codes - Extra axle I have is stamped 2F.
1969 Shop manual only lists 2D, ZF and ZE as the available regular duty open rear axle codes. Could what appears to be a 2F instead be intended to be a ZF?
It is very clearly a "2" and not a "Z" Maybe someone at the factory grabbed the wrong stamp for some? Any thoughts??? Thanks! Kevin. |
#2
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The A-Body chart shows letter/letter codes. GP chart shows number/letter codes. Here's the GP chart I have.
Grant |
#3
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Thanks Grant, but as I noted, I have the 1969 Pontiac shop manual (original, not a reprint, and I have had it for over 40 years), so I had already had access to that information. What I was looking for is whether anyone has any experience with the axle codes being mis-marked. Same info as the page in my manual. Here is the picture of the axle code:
It is pretty clearly a 2F. Last edited by 1969GPSJ; 06-06-2021 at 05:52 PM. |
#4
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???
Why do you think it's mis-stamped? 2F is a 3.23 reg duty code for GP shown in my chart.
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#5
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Well because I guess my original Pontiac Service Manual has a misprint. It is very clearly a "Z" on my copy.
(it's kind of hard to scan such a large manual) They must have corrected it before they printed the 1972 parts book. Last edited by 1969GPSJ; 06-06-2021 at 06:25 PM. |
#6
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Ah, no wonder! Those "Z" codes are not correct for the GP chart. My chart is from Pontiac MPC.
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#7
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My manual has a May 1971 print date. It's just wrong. Your parts catalog clearly has the correct information.
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#8
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There's no lack of misprints in these old books.
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#9
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We is bin slipstreamed. Note the date of the chart that shows the 2F: 1972. My October 68 Manual says ZF. My question: is that 2F a 10 bolt or a 12 bolt ? YWTK
ps this is a good example of why you cannot always trust factory manuals. The date is important. Have seen the same thing in brochures particularly in 1973 as Many Things Changed. |
#10
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The 2F rear being discussed is a standard BOP (A body style) 10 bolt... Proper for the '69 GP body from which it was removed. I have a brand "x" (chevy) 12 bolt on that frame now, and I have a guy interested in the 2F rear axle assembly.
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#11
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I just looked at my '69 Service Manual chart and it shows those "Z" codes as well.
All 10 bolt in '69. Absolutely! |
#12
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So much for my belief that the shop manuals are essentially automotive scripture. lol.. I need a beer. Last edited by 1969GPSJ; 06-06-2021 at 06:59 PM. |
#13
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Thanks for the help!!!!
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#14
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OK now on to the '73 SD Grand Prixs.
BTW my 400/4spd/AC 70 Grand Prix had an open 12 bolt. Talk about tire smoke. Have a 3.55 4 pinion in the Judge. Could use an OD but my BW 5 speed is only good for about 300 lb-ft. |
The Following User Says Thank You to padgett For This Useful Post: | ||
#15
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The Following User Says Thank You to 428ho4spd For This Useful Post: | ||
#16
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Quote:
Speaking about 455 SD's, in June 1980 I saw a '73 or '74 Grand Am with GM plates, the NACA scooped hood and 455 SD emblems (stickers) tooling down I-70 between Columbus Ohio, and Dayton, headed Westbound. The car they never released. Last edited by 1969GPSJ; 06-06-2021 at 08:33 PM. |
#17
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I remember 7 white 73 GAs at Milford but AFAIK none were sold to the public since they were never certified (big baggies). March 15, 1973 put an end to the SD in A and G bodies.
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