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dmuis
Samba Member
Joined: September 01, 2004
Posts: 381
Location: Sunny Alberta, Wild Rose Country.
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 Posted: Thu May 05, 2011 10:06 pm Post subject: 1950-1967 Type 2 Gear Ratios |
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Hello All,
I looked up the transaxle gear ratios shown in the official owners manuals and compiled this list. I noticed that for a few commercial manuals, the Rear Axle ratio (Final drive?) had two options, as seen below. I'm sure that there is more knowledge out there about this, but perhaps it's not compiled in this way. I have also seen reference to "mountain/alpine" gearing. If you have any additional info, please consider sending it to me and I will update/modify this list.
Best regards,
Darren
Full page on TheSamba.com with images, PDFs, and an Excel spreadsheet:
http://www.thesamba.com/vw/archives/info/50_67_bus_gear_ratios.php
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Andy P
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Joined: February 04, 2001
Posts: 1166
Location: NSW, Australia.
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| Posted: Thu May 05, 2011 11:46 pm Post subject: |
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I see the final drive ratios and the redux box ratios and my '62 has a final drive of 4.125 and a redux box ratio of 1.39.
Is there anyway of do the maths with box figures to what the real final drive is with that combination?
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Cheers & God Bless
'62 Beetle
Jägdwagen |
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AlteWagen
Troll
Joined: February 23, 2007
Posts: 8503
Location: PNW
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Andy P
Samba Member
Joined: February 04, 2001
Posts: 1166
Location: NSW, Australia.
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| Posted: Fri May 06, 2011 8:52 am Post subject: |
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Thanks for the link, lads.
Even though the speedo is working in my '62 this'll help.
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'62 Beetle
Jägdwagen |
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Clara 
Samba Member
Joined: June 14, 2003
Posts: 12401
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| Posted: Fri May 06, 2011 8:57 am Post subject: |
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Wow! That was a lot of work to sort all that into a table.
| Quote: |
| I have also seen reference to "mountain/alpine" gearing. If you have any additional info, please consider sending it to me and I will update/modify this list. |
It was an option.
RGB ratios:
[/quote]
in 63 (& early 64?) you could get a 1200 engine and the lower gearing, or the 1500 engine and slightly higher gearing.
It wasn't really commercial v. passenger, just option to pay more for more power. Then the 1500 gearing became standard at least for US market. Evidently 1 ton 1200 gearing was common in Italian late splits (mountains)
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Andy P
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Joined: February 04, 2001
Posts: 1166
Location: NSW, Australia.
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| Posted: Fri May 06, 2011 9:16 am Post subject: |
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This is slightly off topic but is there a link to 60s Beetle ratios too?
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Cheers & God Bless
'62 Beetle
Jägdwagen |
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Clara
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GDOG57
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Joined: March 19, 2006
Posts: 1065
Location: Gilbert,Arizona
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| Posted: Fri May 06, 2011 5:46 pm Post subject: |
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So from May '59 to Aug '64 rear axle ratios were 4.12? That doesn't sound right to me. I always thought it was 4.37 till '67 than 4.12.
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'57 oval window deluxe,Agave green(L240) 2276cc w/51.5 IDA's
'57 type 2 panel ( L31 dove blue) project daily driver,Singleport 1955cc
'69 Squareback (L30A Royal Red) |
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AlteWagen
Troll
Joined: February 23, 2007
Posts: 8503
Location: PNW
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| Posted: Fri May 06, 2011 5:59 pm Post subject: |
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| GDOG57 wrote: |
| So from May '59 to Aug '64 rear axle ratios were 4.12? That doesn't sound right to me. I always thought it was 4.37 till '67 than 4.12. |
Only in type I. 4.37-66
4.12 67-72
3.87 73 up (single side cover)
Ghia had a whole different year break down and 4th gear |
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dmuis
Samba Member
Joined: September 01, 2004
Posts: 381
Location: Sunny Alberta, Wild Rose Country.
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| Posted: Sat Dec 03, 2011 3:20 pm Post subject: |
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Added additional info, including BF Goodrich stock tire dimensions in both Metric and Imperial. Data taken from Coker Tire's website.
jpg, pdf and excel spreadsheet posted here by Everett.
http://www.thesamba.com/vw/archives/info/50_67_bus_gear_ratios.php
The excel spreadsheet can be modified to add your specific tire dimensions, and will recalculate your revolutions per mile or km, depending on the tab you choose.
Thanks!
Darren |
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BarryL
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Joined: November 01, 2004
Posts: 14269
Location: Casa de Oro, California
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| Posted: Mon Dec 05, 2011 8:47 am Post subject: Re: 1950-1967 Type 2 Gear Ratios |
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Nice chart. I noticed for Aug-66 Dec-66 they dropped back to a 1.26 third gear. That means it's a lower ratio and the engine winds out more. Is this right and is this not a misprint? |
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dmuis
Samba Member
Joined: September 01, 2004
Posts: 381
Location: Sunny Alberta, Wild Rose Country.
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| Posted: Mon Dec 05, 2011 1:27 pm Post subject: |
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I double-checked the manuals and the numbers are correct. You can look it up here, manual dates are listed in the chart: http://www.thesamba.com/vw/archives/manuals/type2.php
A little digging is required, typically around page 62-75 of the manual, page 46 for the two in question from late 66(1967 model year).
Gear ratios with Imperial tire data: Click on the image for better screen resolution, or link to pdf file is here.
Gear ratios with Metric tire data: Click on the image for better screen resolution, or link to pdf file is here.
The excel spreadsheet also allows you to enter your actual tire height to calculate your rotations per mile or kilometre. |
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dmuis
Samba Member
Joined: September 01, 2004
Posts: 381
Location: Sunny Alberta, Wild Rose Country.
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| Posted: Mon Dec 05, 2011 3:55 pm Post subject: |
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Also found the change in progressive refinements on the 3rd gear change. Unfortunately, it doesn't say what they changed it to, but the value in the manuals must be correct. It appears that it happened across all makes (types 1, 2, and 3).
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Bruce Amacker
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Joined: December 26, 2007
Posts: 1786
Location: Cleveland, Ohio
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| Posted: Fri May 23, 2014 5:41 pm Post subject: Are the ratios accurate printed in manuals for tunnel trans? |
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RE: Tunnel Trans R&P Ratios
I'm getting confused a bit here, I've always thought that small nut trannies had a 4.37 R&P and large nut had a 4.12 R&P. When I look at specs in the manuals they are showing just the opposite (small nut trannies had a 4.12 R&P and large nut had a 4.37R&P) except for the link below, which shows a small nut with a 4.37 R&P and large nut with a 4.12 R&P.
I have three bus tunnel trannies handy, two large nut and one small nut. I did the count and turn method to find the two large nut are 4.12 and the small nut is 4.37. I realize these are old trannies and anything could have happened over the years, but one of them I'm sure has not been apart for several decades, if at all.
How many of you guys have documented this information to be correct by doing a teardown or count-and-turn? I'm wondering if there is some misinformation in the manuals. Also, this chart would have the '63-64 busses having the 4.12 and taller 1.26 RGB, which would make those real dogs on hills.
Thanks!
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'66 Deluxe Bus
'65 Standard Bus
Build threads:
'66- http://www.leakoil.net/forum/viewtopic.php?f=23&t=2888&sid=54d8dedfb3822f99c7f2ea430cb4e856
'65- http://leakoil.net/forum/viewtopic.php?f=23&t=4263 |
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Wayland
Samba Member
Joined: December 29, 2005
Posts: 498
Location: Lasqueti Island B.C.
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| Posted: Fri May 23, 2014 7:27 pm Post subject: |
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| I have 2 1967 transaxles here, as well as 2 1965 transaxles. All four of them have 4.375 RP ratios. |
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Riff Raff
Shivering Sambian
Joined: October 25, 2004
Posts: 3097
Location: Alberta
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| Posted: Fri May 23, 2014 8:30 pm Post subject: Re: Are the ratios accurate printed in manuals for tunnel tr |
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| Bruce Amacker wrote: |
RE: Tunnel Trans R&P Ratios
I'm getting confused a bit here, I've always thought that small nut trannies had a 4.37 R&P and large nut had a 4.12 R&P.
Thanks! |
The chart Darren uploaded is correct.
The small nut tunnels were all 4.125 R&P.
The 63 little big nut and 64 big nut were 4.125 as well, but I think VW found that they were geared a little too high with the whizzy new 1.26 RGB's so they backed off on the R&P ratio to give the bus a little more balls.
The small nuts were geared lower, and one might assume that the R&P was the culprit, but in fact, it was the small nut RGB's
Lots of combos of trans and RGB's cobbled together over the years.
I have a beetle trans with .89 fourth and 4.375 R&P mated to small nut RGB's in the shed. Came out of a panel Brant and I cut up.
That think must have been SLOW!
I run 2 litre engines in both my buses and run small nut centre section with big nut RGB's to get the highest stock gearing possible.
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The greatest obstacle to discovery is not ignorance, but the illusion of knowledge
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