Chevrolet transmission bearing numbers

[Bob Phillips]

I searched the MLU postings for bearing data and was able to find reference to the caged pilot bushing only. While the number crosses with a couple of different suppliers it is officially discontinued. I am sure there are some out there yet as, so far I have had no great difficulty in getting all brake parts, seals etc B,P,

[rob love]

Some of the crosses I get for GM141854 are Timken J281248 and Bower possibly Bower 93424

Both are presently on ebay starting at 9.99
http://www.ebay.com/itm/J281248-BOWE...4AAOSwpLNX99P0

http://www.ebay.com/itm/NOS-Bower-Ro...VWDrOm&vxp=mtr

In fact, if you run the 93424 number on ebay you will come up with quite a number of them, including made by Hyatt, who is listed in the GM book as the cross reference.

http://www.ebay.com/sch/i.html?_odkw...ARING&_sacat=0

[Bob Phillips]

Hi Rob
Great find , esp as my local jobber says all related interchange numbers are no longer available. Perhaps another alternative would be to use correct length &dia pieces of dowel stock with no cage..my '76 jeep trany was put together in that fashion...wont hear about rest of bearings until next week BP

[rob love]

Dowel stock would never last. The little needle bearings found in many transmissions and transfer cases are very hardened. They are also, as far as I know, unique to their applications.

[Bob Carriere]

.... the last set of treads on this C1207 bearing was NEVER resolved to my satisfaction......

I need to search my photo librabry...... but I am stoned on pain killer,,,,,so somehwere before they completely wear off and I take the new batch I will try to find that illusive info.....

From waht I recall the bearing guy telling me is that everyone of the suffix or prefix to a bearing number means something has to how it is constructed or inrtended for.....

For the sake of the hobby we need to sort this one out.

Don't roll away on a loose bearing...... getting a shot of something into my hiop joint tomorrow....so may be much better or much worst.....

cheers

Bob C


a.k.a. the loose bearing guy!!

[rob love]

Bob
The solution is easy....buy Fords. The Ford name is much more popular and the aftermarket caters to either NOS, equivalent, or modern reproduction parts.

[Lynn Eades]

Phil, Bob, and others. Here are some old numbers : (the ones Phil mentioned in post #4)
1. G.M. bearing # 141854 crosses over to:
Hyatt 93424
RBC RA 143
Bower 28-1248
SKF F93424

2. a 3307 (is a very common bearing found under 6307)
It crosses over to:
Timken BRM 035
Hoffman 335
R&M MJ35
SKF6307
Norma- Hoffman MT307, 307.
MRC 307m,307r, 307s.
New Departure 1305, 3305

3. The Hyatt C1206 crosses over to
Bower s1206
R&M B8372
SKF FC1206 and F-1206-TS

4. The Hyatt C1207 crosses over to;
Hyatt 1207 TS
Bower S-1207
R&M 8371
SKF FC1207, I-130508

These cross references come from a post WWII Australian Army bearing interchange book. If you have a pile of ex Australian bearings with Australian Army part numbers (eg.BG-insert your number-Z) Then I can help I.D. them
The book also lists R.A.O.C. numbers.
Not a modern interchange but another angle.

The following is just some bearing blurb for those who might be interested

Some bearings like the 3307 are very common today (as a 6307) They are available in Std, High load (extra balls- Slot filled) with a single or double tin shield or with single or double rubber seals. There are also variations of these bearings that have a circlip groove.

If you have a ball bearing with 4 digits and it starts with a 6 (eg 6203) it means it is a metric (sized) std. type annular grooved ball bearing. The last 3 digits identify the size.

Some bearings can be sized different from std. This means the inner or outer diameter is less or more than std. to allow for a slide fit assembly, or indeed a looser fit for operation at high temperatures (an example: C3)

Bored yet?