Ring & Pinion shims

Discuss VW transaxles and transmissions. Gearheads wanted!

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Lo cash lester
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Post by Lo cash lester » Wed Jan 02, 2008 9:39 am

I double checked it in multiple places because I thought it didn't seem right. I'm using a Mitutoyo digital mic that has a metric scale. I can see it being a little off but not that much? The mic isn't new, I use it extensively when working on my mill and lathe as well as on precision printing equipment. That's my "real" job, I repair large sheet fed printing presses. Lester

Bruce2
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Post by Bruce2 » Wed Jan 02, 2008 11:17 am

So it wasn't a .010" shim (.25mm)?
When you swapped it, did the shim go with that same R&P into the new case? It should prove interesting if the next reported K831 is near that.

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Lo cash lester
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Post by Lo cash lester » Wed Jan 02, 2008 4:14 pm

Nope, it was 0.1mm. and I did put it with the R/P in the new case. I thought it weird as well. I have a couple more SSC transaxles sitting around, when I get time I'll pull them apart and see what I can see. Lester

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Superdrag
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Post by Superdrag » Tue Jan 08, 2008 6:27 am

What's the conversion equation to put these in american numbers?
Edit** I looked it up, here's some quick converted numbers that were common going back 4 decimal places: .5mm=.0197 .55mm=.0217 .6mm=.0236 .625mm= .0246 .65mm=.0256 .7mm=.0276

Bruce2
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Post by Bruce2 » Sat Mar 01, 2008 10:54 pm

A few more, plus DD's 4.12 previously reported.
K 4.62 .50mm

G 4.37 .6mm
K 4.37
O 4.37

G 4.12 .6mm - .625mm (from Mike @ Rancho), .55, .70, .55, .60, .60, .65
K 4.12
O 4.12 .55mm

G 3.88 .6mm, .6mm, .65mm, .65mm, .65, .65, .65
K 3.88 .1mm
O 3.88

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Lo cash lester
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Post by Lo cash lester » Sun Mar 02, 2008 9:42 pm

Here are a few more to add. K-4.12=0.6mm, G-3.88=0.6. Just pulled these apart this weekend. Lester

Bruce2
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Post by Bruce2 » Tue Mar 04, 2008 1:39 am

K 4.62 .50mm

G 4.37 .6mm
K 4.37
O 4.37

G 4.12 .6mm - .625mm (from Mike @ Rancho), .55, .70, .55, .60, .60, .65
K 4.12 .6mm
O 4.12 .55mm

G 3.88 .6mm, .6mm, .65mm, .65mm, .65, .65, .65, .6
K 3.88 .1mm
O 3.88

Duus
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Post by Duus » Fri Mar 07, 2008 5:47 am

One more to add: O 4,12 0.65mm shim

Bruce2
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Post by Bruce2 » Fri Mar 07, 2008 11:56 pm

Welcome aboard, Duus!
K 4.62 .50mm

G 4.37 .6mm
K 4.37
O 4.37

G 4.12 .6mm - .625mm (from Mike @ Rancho), .55, .70, .55, .60, .60, .65
K 4.12 .6mm
O 4.12 .55mm, .65

G 3.88 .6mm, .6mm, .65mm, .65mm, .65, .65, .65, .6
K 3.88 .1mm
O 3.88

Carl Nolen
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Post by Carl Nolen » Wed Jun 04, 2008 9:48 pm

I tore down a couple of cores lately I thought where unique. One was a 68 trans (almost certain AB) that was G4.37, round nut pinion bearing, splined 4th. It had a .60 shim.

The other was a double sideplate AT with a three bolt nose cone. G3.88 with a .65 shim. Both boxes in good shape but nine miles of thick of crap on them. Takes more time to clean them than to build it. I need an atomic pressure washer/cooker, lol. Nothing a little elbow grease can take care of.

Carl

Bruce2
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Post by Bruce2 » Thu Jun 05, 2008 11:16 pm

K 4.62 .5mm

G 4.37 .6mm
K 4.37
O 4.37

G 4.12 .6mm - .625mm (from Mike @ Rancho), .55, .70, .55, .6, .6, .65, .65
K 4.12 .6mm
O 4.12 .55mm, .65, .6

G 3.88 .6mm, .6mm, .65mm, .65mm, .65, .65, .65, .6. .65, .65
K 3.88 .1mm
O 3.88
Thanks Carl, I've added yours and a few more. Note, this list is for late threaded pinion bearing shims only.
Pretty soon I'll have to make a spread sheet. Keep 'em coming!

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dangerous
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Post by dangerous » Fri Jun 06, 2008 2:22 am

I recently set up an older 'O' 4.375 diff(keyed, but 8 bolt) into a late case.
A 0.35mm shim stack was as close as I could get.


Of interest, and for future conversions,
it was fitted from the factory with a four bolt deal and 0.6mm shim.
So perhaps a 0.25mm difference is a good number to start with
when going into a late case.
Or back the other way, (add 0.25mm) with say a Rhino,
when the pinion originated from the late shim/bearing case.

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dangerous
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Post by dangerous » Fri Jun 06, 2008 2:30 am

I have been notig the shims for late cases for a while.
Here is what I have so far:

G4.375 0.5, 0.60mm

G4,125 0.55, 0.70mm

G3.875 0.6mm

K3.875 0.65, 0.70mm

091 K4.57 0.6, 0.65mm

002 K4.857 0.6mm

002 K5.42857 0.75mm

Bruce2
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Post by Bruce2 » Sat Jun 07, 2008 1:36 am

K 4.62 .5

G 4.37 .6, .5, .6
K 4.37
O 4.37 .35

G 4.12 .6 - .625 (from Mike@Rancho), .55, .70, .55, .6, .6, .65, .65, .55, .7, .75
K 4.12 .6
O 4.12 .55, .65, .6, .5

G 3.88 .6, .6, .65, .65, .65, .65, .65, .6. .65, .65, .6
K 3.88 .1, .65, .7
O 3.88
Thanks Dave, I've got an O type 4.37, so that gives me a starting point.

Maybe you should start a topic on Bus R&P shims. I never touch them, so I have no interest.

Casting Timmy
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Re:

Post by Casting Timmy » Tue Dec 26, 2017 8:24 am

K 4.62 .50mm

Splined clip and Keyed threaded Versions G 4.37 .6mm
K 4.37
O 4.37

Splined clip and Keyed threaded Versions G 4.12 .6mm - .625mm (from Mike @ Rancho), .55, .70, .55, .60, .60
Splined clip and Keyed threaded Versions K 4.12
O 4.12 .55mm

Splined Clip G 3.88 .6mm, .6mm, .65mm, .65mm
K 3.88 .1mm
O 3.88

Did the facotry only pair splined 4ths and with the 4th gear race clip and then keyed fourth with the threaded end for a nut? Trying to figure out the differences between shims on certain ring and pinion sets, the only other one I would know if is the third gear splines being reduced slightly for use with the early gears.

I'm assuming over the years of production that it didn't change shimming anything to worry about.

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