12 bolt bearing cap

Lyn Smith · 12-01-2008, 08:12 PM

Ive got a 12 bolt missing a cap. Who makes a replacement cap?

Alan Roehrich · 12-01-2008, 08:22 PM

Mark Williams makes steel billet caps.

Dave Goob Cook · 12-02-2008, 12:27 PM

www.tomsdifferentials.com

Easy self install....used only on the driver side usually.

Comes with upgraded fasteners for the passenger cap, driver side must be drilled and tapped for 1/2" fastener, provided.

NovaMan · 12-04-2008, 02:02 AM

Why doesn't that one require milling like everybody else's?

Dave Goob Cook · 12-04-2008, 11:35 AM

Dunno..

It requires "fitting", but nothing more than what can be done with a file.

I've had mine for 12 years.

NovaMan · 03-07-2009, 03:52 AM

I was just thinking about this again, and I wondered why I've never seen any bearing cap studs?

Ian Hill · 03-08-2009, 09:29 AM

i found if you tap the existing threaded holes deeper with the 2nd of a three tap set (not the starter taper tap and not the bottoming tap) so that the tap end goes flush with the back side of the opening you can still bottom out a set of studs with over an inch of thread holding. even through the studs bottom out i still used blue locktite.

Ian

12-01-2008, 08:12 PM	#1
Lyn Smith VIP Member Join Date: Dec 2001 Location: Pontiac,il. Posts: 1,199 Likes: 282 Liked 967 Times in 194 Posts	12 bolt bearing cap Ive got a 12 bolt missing a cap. Who makes a replacement cap?

12-01-2008, 08:22 PM	#2
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,110 Likes: 1,570 Liked 1,810 Times in 412 Posts	Re: 12 bolt bearing cap Mark Williams makes steel billet caps. __________________ Alan Roehrich 212A G/S

12-02-2008, 12:27 PM	#3
Dave Goob Cook Member Join Date: Dec 2006 Location: Indy Posts: 422 Likes: 0 Liked 0 Times in 0 Posts	Re: 12 bolt bearing cap www.tomsdifferentials.com Easy self install....used only on the driver side usually. Comes with upgraded fasteners for the passenger cap, driver side must be drilled and tapped for 1/2" fastener, provided. __________________ "Despite the high cost of living, it remains popular." Dave Cook NHRA N375

12-04-2008, 02:02 AM	#4
NovaMan Member Join Date: Sep 2004 Location: Kalamazoo, MI Posts: 117 Likes: 0 Liked 0 Times in 0 Posts	Re: 12 bolt bearing cap Why doesn't that one require milling like everybody else's? __________________ ~Pete 1970 Nova

12-04-2008, 11:35 AM	#5
Dave Goob Cook Member Join Date: Dec 2006 Location: Indy Posts: 422 Likes: 0 Liked 0 Times in 0 Posts	Re: 12 bolt bearing cap Dunno.. It requires "fitting", but nothing more than what can be done with a file. I've had mine for 12 years. __________________ "Despite the high cost of living, it remains popular." Dave Cook NHRA N375

03-07-2009, 03:52 AM	#6
NovaMan Member Join Date: Sep 2004 Location: Kalamazoo, MI Posts: 117 Likes: 0 Liked 0 Times in 0 Posts	Re: 12 bolt bearing cap I was just thinking about this again, and I wondered why I've never seen any bearing cap studs? __________________ ~Pete 1970 Nova

03-08-2009, 09:29 AM	#7
Ian Hill Member Join Date: Sep 2008 Posts: 216 Likes: 0 Liked 6 Times in 3 Posts	Re: 12 bolt bearing cap i found if you tap the existing threaded holes deeper with the 2nd of a three tap set (not the starter taper tap and not the bottoming tap) so that the tap end goes flush with the back side of the opening you can still bottom out a set of studs with over an inch of thread holding. even through the studs bottom out i still used blue locktite. Ian