Chevrolet transmission bearing numbers

[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?

[Bob Phillips]

As of today I can get the following bearings from my local jobber;
GM # 903209 crosses to 6209J cost $64 CDN frt mainshaft
GM#901307 crosses to 307J cost $134 cdn rr mainshaft

You might to better to check EBay for NOS bearings at this price
caged pilot bearing 141854 is discontinued

[rob love]

I rarely buy from a jobber, or NAPA any more. Rock auto in the US is often my go to, along with summit racing and of course, ebay and amazon.

Just replaced the front rotors on my truck along with all the wheel bearings and new seals (even a spare pair of seals for next year) and spent less than I would have for just one rotor here. I am happy to buy local, but they have to be at least a little competitive.

[Bob Phillips]

So it looks like NOS varieties of the 6209 bearing are available on EBay for US $10-30 and at Rock Auto for $29.78

[Gordons]

for the transmission in the C15A, I purchased a transmission overhaul bearing and gasket kit, cost was about $120.00 US from The Filling Station, there on line and you can order thru the net, the only item incorrect was the input shaft bearing or main shaft bearing, I had to call and give them additional info to get the heavy duty bearing, see the picture of the bearing on the right this is the original and is longer than the one on the left that was sent in the bearing kit.

[Bob Phillips]

Thanks for the lead re Chev parts source! The catalog is amazing prices seem very reasonable...B.P.

[Alex van de Wetering]

Just a heads up....this guys is selling replacement (needle cage) bearings for the Chev main shaft on Ebay:

http://www.ebay.nl/itm/172104151100?...%3AMEBIDX%3AIT

Ebay object number: 172104151100

I bought one about a week ago and have fitted it to the gearbox in the meantime; will post a picture in the next few days.



Different manufacturers often use the same part number for the same bearing, so it helps googling just the part number without the original manufacturer and adding the word "bearing" or "seal"....and see what comes up. Sometimes this results in replacement bearings available through agricultural suppliers...or ads on Ebay. It's also how I found the ad above.
Google searching will often also give you sites with cross reference lists.


Alex