Ring & Pinion shims

[Lo cash lester]

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]

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.

[Lo cash lester]

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

[Superdrag]

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]

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

[Lo cash lester]

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]

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]

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

[Bruce2]

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]

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]

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!

[dangerous]

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.

[dangerous]

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]

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]

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.