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Joined: May 2007
Posts: 8
J
New Guy
New Guy
J Offline
Joined: May 2007
Posts: 8
Has anyone done a front roller bearing converion on their 3800? I am looking for bearing #'s, seal # and maybe a drawing for any necessary adapters for the bearings to the spindle.

Joined: May 2005
Posts: 8,878
G
.
.
G Offline
Joined: May 2005
Posts: 8,878
Pleasae do let us know what you find.
The following is From another thread

Originally Posted by justmeok
I found the following tapered roller bearings in timken catalog and for sale on line at numerous places. they come close to replacing stock ball bearing.Might need alittle sanding on spindle.

outer repalcement
timken 1975 and 1922 parts

inner repalcement
timken 3387 and 3339.

Look those up and tell me if you see any real problems using these. I would appreciate any feedback.
Outer set 1975/1922
Has 0.875" ID, 2.25" OD, and is 0.781" thick

Inner set 3387/3339
Has 1.5" ID, 3.15" OD, and is 1.156" thick

Here's the original info for comparrison
Originally Posted by Grigg
...Front (original) wheel bearings for 3/4 and 1 ton Chevy.

Bearing # ---- Bore --- O.D. ----- Overall Width --- Outer ring width --- Inner ring Width-
'53 to '59
B-46 ------- 1.4995 --- 3.1500 ---- 1.2360 ----------------- .8510 --------------- .9170
B-45 -------- .9058 ---- 2.2503 ---- .8000 ------------------ .6900 --------------- .6590
'46 to '52
B-26 ------- 1.4060 --- 3.1500 ---- 1.2260 ----------------- .8510 --------------- .9170
B-25 -------- .8435 ---- 2.2503 ---- .8000 -------------------.6900 --------------- .6590

To use the outer set you'd need a late spindle turned down about 0.030" (Which is more than you can sand) The older one is already to small.
OD looks good
Thickness is about 0.040" thinner which should still be fine.

To use the inner set the ID and OD look good.
Thickness is about 0.080" thinner which may still be fine.
Only issue is the seal, hopefully there is a way to use one, and if not then this bearing is not much help.

Thanks for the info!
These look like some good possibilities and could jump start a reasonably simple 3/4 and 1 ton single wheel disc brake swap with original axle.

Grigg


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