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ABN82 Samba Member
Joined: September 27, 2013 Posts: 1
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Posted: Fri Sep 27, 2013 9:59 pm Post subject: 002 bus Trans axle Code |
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Can anyone tell me what this trans axle code means? CA 041 4945 The trans axle is a 3 rib type 2 IRS. I have looked all over the net and still have not found an answer. |
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JOHN D Samba Member
Joined: April 21, 2004 Posts: 67 Location: Dunbar, West Virginia
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Posted: Tue Nov 26, 2013 4:07 pm Post subject: |
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Here you go ---
Bus Information
CA - CD 68 - 71 / 002 5:38 / 3 Rib
CE - CL 72 - 73 / 002 5:38 / 3 Rib
CM - CN 74 - 75 / 002 4:86 / 5 Rib
CP - CX 76 - 79 / 091 4:57 / 6 Rib
Serial Number Information
CM02 10 3
CM = Leter Code
02 = Day of Production / 2nd day of month
10 = Month of Production / October
3 = Year of Production / 1973
John 0\ ! /0 |
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Mal evolent Samba Member
Joined: March 31, 2009 Posts: 2912 Location: San Antonio, Nuevo Mexico
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Posted: Wed Nov 27, 2013 6:10 am Post subject: |
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if it's a CA it's probably a '68. if it's a 68 you don't ant it. one year only, unobtainable parts.
I believe '68s have to vast Phillips head screws holding the side cover on, later 002s have 6 bolts _________________ 73 Beetle Baja, Ghia front brakes, Type 3 rear brakes, 2220 ( 94 X 80 ), Weber Progressive, Bosch SVDA, '97 Mustang seats
Baja Bugs for Volkswagen Virgins: Index |
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donpedro Samba Member
Joined: January 17, 2003 Posts: 73 Location: Twin Falls, ID
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Posted: Sun Apr 27, 2014 11:55 pm Post subject: |
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Such good Info! Thanks for all of the hard work Mal, these threads are great and I've had my baja for 13 years. |
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vwpilotbob Samba Member
Joined: June 22, 2014 Posts: 28 Location: Tucson, AZ.
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Posted: Sun Jun 22, 2014 1:43 pm Post subject: WHICH ring gear, 6 or 8 bolt?? |
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Hi,
I've been searching for info on this for a couple of hours, so if anyone can help I would REALLY appreciate it.
I have an (unknown history) swing axle trans in a fiberglass buggy. I need to know if it is likely to have a 6, or the later 8 bolt differential housing.
Here is the number: 7147701
Anyone know what year that might be and if it is likely to be a 6, or an 8 bolt???
Thanks a bunch in advance,
vwpilotbob |
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joescoolcustoms Samba Member
Joined: August 08, 2006 Posts: 9054 Location: West By God Virginia
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Posted: Sun Jun 22, 2014 1:52 pm Post subject: |
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Welcome to the Samba!
That is a late '64 transaxle and will be a 6 bolt ring gear and carrier. The R&P ratio will be a 4.37:1. _________________ Bad News Racing 2018 NORRA 1000 3rd in Class
Best Day Ever Racing 2022 NORRA 1000 2nd in Class and first All Female team to complete the race
Everyone is gifted. Some just do not open the package.
Looks like it was painted with a live chicken,polished with a brick and buffed with a pine cone |
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vwpilotbob Samba Member
Joined: June 22, 2014 Posts: 28 Location: Tucson, AZ.
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Posted: Sun Jun 22, 2014 5:59 pm Post subject: |
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Hi, and thanks for the welcome and the info.
Would you mind sharing your source for future info?
I checked the differential ratio on this trans, and it is 4.125. So, it looks like I won't really know what is inside until I pull it apart. Bummer!
Thanks again,
vwpilotbob |
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joescoolcustoms Samba Member
Joined: August 08, 2006 Posts: 9054 Location: West By God Virginia
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Posted: Sun Jun 22, 2014 7:23 pm Post subject: |
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Not many transaxles left that have not been apart at some time or another.
If you sort through the "Technical" drop down above in the tool bar, then go through VIN Numbers for a Type 1, you can see the sequence and judge about where yours was made.
How did you discover it was a 4.12 ring and pinion? _________________ Bad News Racing 2018 NORRA 1000 3rd in Class
Best Day Ever Racing 2022 NORRA 1000 2nd in Class and first All Female team to complete the race
Everyone is gifted. Some just do not open the package.
Looks like it was painted with a live chicken,polished with a brick and buffed with a pine cone |
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vwpilotbob Samba Member
Joined: June 22, 2014 Posts: 28 Location: Tucson, AZ.
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Posted: Mon Jun 23, 2014 11:59 am Post subject: Checking differential ratio without disassembly. |
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Yeah, that's a neat trick I learned a while back.
Put the engine with zero degrees straight up, or mark the engine pulley at a point straight up.
Jack up only one side of the rear of the car.
Now make a mark on both the brake drum and the brake backing plate on the jacked up side.
Put the car into SECOND gear.
Now start turning the engine over until the brake drum makes exactly one full rotation. Count exactly how many turns of the engine pulley it takes to accomplish the full turn of the drum.
Exact turns of the crank:
4 = 3.88 gear ratio
4 1/4 = 4.125 gear ratio
4 1/2 = 4.375 gear ratio
Cool huh? I've tried it on a number of transmissions and it has been correct each time.
vwpilotbob |
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JOHN D Samba Member
Joined: April 21, 2004 Posts: 67 Location: Dunbar, West Virginia
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Posted: Tue Jun 24, 2014 6:34 pm Post subject: |
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It's easier to drain oil - pull bottom plug - mark a tooth on ring gear with paint - then count the teeth on Ring gear ---- 35 = 4.37 / 33 - 4.12 / 31 = 3.88 --- never wrong.
John |
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53 willys Samba Member
Joined: August 05, 2013 Posts: 66 Location: salt lake city
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Posted: Fri Jun 27, 2014 5:34 pm Post subject: |
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What trans do I have if it's a D0 in a 65 swing axle notchback? I dont see this code in the list? _________________ 1965 Notchback type 1 conversion |
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Fltblkbaja Samba Member
Joined: June 24, 2014 Posts: 88 Location: Kelowna B.C
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Posted: Thu Sep 11, 2014 7:36 pm Post subject: |
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One question, I have a DC code gear box, is that bus or bug? _________________ Everyone chops and drops,
We chop and lift!!! |
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vwpilotbob Samba Member
Joined: June 22, 2014 Posts: 28 Location: Tucson, AZ.
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Posted: Tue Oct 07, 2014 2:48 am Post subject: 6 bolt 4.12 ring gear? |
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Can anyone tell me if all 4.12 ring gears are 8 bolt, or were some made with 6 bolts as well??
Thanks!
vwpilotbob |
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ORANGECRUSHer Samba Member
Joined: June 09, 2006 Posts: 2644 Location: West Coast (Michigan's)
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bluebeetle63 Samba Member
Joined: December 04, 2012 Posts: 47 Location: Miramonte, Ca.
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Posted: Sun Nov 30, 2014 10:42 pm Post subject: |
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anyone ever use a 4.375 ring and pinion with 1.26 3rd and 0.82 4th, stock height tires and put about 100hp behind it? seems like it would have the good take off but be faster in the high gears, with still reasonable about of power. _________________ The time will come when we as a people rise above and free ourselves from the oppression of the most cruel establishment ever known. The Department of Motor Vehicles. |
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bluebeetle63 Samba Member
Joined: December 04, 2012 Posts: 47 Location: Miramonte, Ca.
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Posted: Mon Dec 01, 2014 8:11 am Post subject: |
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[quote="bluebeetle63"]anyone ever use a 4.375 ring and pinion with 1.26 3rd and 0.82 4th, stock height tires and put about 100hp behind it? seems like it would have the good take off but be faster in the high gears, with still reasonable amount of power.
vwpilotbob, I believe all 4.125 ring and pinions came with 8 bolts stock. _________________ The time will come when we as a people rise above and free ourselves from the oppression of the most cruel establishment ever known. The Department of Motor Vehicles. |
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dustymojave Samba Member
Joined: January 07, 2007 Posts: 5802 Location: Lake LA, Mojave Desert, SoCal
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Posted: Mon Dec 01, 2014 11:23 am Post subject: |
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[quote="bluebeetle63"]
bluebeetle63 wrote: |
anyone ever use a 4.375 ring and pinion with 1.26 3rd and 0.82 4th, stock height tires and put about 100hp behind it? seems like it would have the good take off but be faster in the high gears, with still reasonable amount of power.
vwpilotbob, I believe all 4.125 ring and pinions came with 8 bolts stock. |
I've used TALLER offroad tires with a 4.37 diff and stock gear ratios and about 100hp. EZ to light up the rears on takeoff, but it was rather long between 2nd-3rd and 3rd-4th. The engine needs to have a fairly wide power band. Stock diameter rear tires are fine for pavement, but tend to be a drag offroad (as in "drag the bottom of the car on any little obstacle"). _________________ Richard
Offroading VW based cars since 1965
Tech Inspection 1963 - 2012 SCCA/SCORE/HDRA/MORE/MDR +
Retired from building Bajas, Fiberglass Buggies and Rails in the Mojave Desert. Also Sprints & Midgets, Dry Lakes, Road Race cars. All types New and Vintage
SoCalBajas Member
Kicked Cancer's A$$...1st and 2nd round...Fight ain't over yet. |
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bluebeetle63 Samba Member
Joined: December 04, 2012 Posts: 47 Location: Miramonte, Ca.
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Posted: Mon Dec 01, 2014 7:09 pm Post subject: |
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I'm building a daily driver and would like to keep stock tires in the rear. The reason for my questions is I like being able to get caught up to traffic quickly with the 4.375, but I would like better top speed. Top speed is fine with the 4.375 and stock gears, but I don't like how high it revs. I want to make the car have good mpg if I can. so if there are holes between 2-3 3-4 I'm still curious about the gears I mentioned. Anyone think there will be a hole between the gears? _________________ The time will come when we as a people rise above and free ourselves from the oppression of the most cruel establishment ever known. The Department of Motor Vehicles. |
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Bajabrett Samba Member
Joined: May 30, 2014 Posts: 83 Location: El Centro
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Posted: Tue Dec 02, 2014 10:56 pm Post subject: |
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I guess that would help
Last edited by Bajabrett on Wed Dec 03, 2014 8:22 am; edited 1 time in total |
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ORANGECRUSHer Samba Member
Joined: June 09, 2006 Posts: 2644 Location: West Coast (Michigan's)
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