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489 Case bearing cap torque? #1785258 03/21/15 11:12 PM 03/21/15 11:12 PM
Joined: Jun 2005 Posts: 5,102 Western Md. skicker OP "The Champ"
skicker OP "The Champ" Joined: Jun 2005 Posts: 5,102 Western Md.	Dismantled the 489 case 3.91 open gears I have to install a clutch pac today. Three things... Whats the torque spec for the bearing caps for reassembly? Whats the torque spec for the LH thread ring gear bolts? Finally what would be the best backlash setting for something that is for the street but will see a small amount of track time? Thx all... ...FAFO...

Re: 489 Case bearing cap torque? [Re: skicker] #1785259 03/21/15 11:15 PM 03/21/15 11:15 PM
Joined: Jan 2007 Posts: 1,444 NEW JERSEY D dynamite pro stock
dynamite pro stock D Joined: Jan 2007 Posts: 1,444 NEW JERSEY	Can't help with all of them ,but was always told the LH ring gear bolts were 55 ft lbs...

Re: 489 Case bearing cap torque? [Re: skicker] #1785260 03/21/15 11:20 PM 03/21/15 11:20 PM
Joined: Nov 2007 Posts: 21,823 Kirkland, Washington Pacnorthcuda Too Many Posts
Pacnorthcuda Too Many Posts Joined: Nov 2007 Posts: 21,823 Kirkland, Washington	Bearing caps...90 ft lbs Ring gear 55 ft lbs Back lash .006-.009 And I would err closer to 009 than 006.

Re: 489 Case bearing cap torque? [Re: Pacnorthcuda] #1785261 03/22/15 12:18 AM 03/22/15 12:18 AM
Joined: Aug 2003 Posts: 43,176 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,176 Bend,OR USA	Quote: Bearing caps...90 ft lbs Ring gear 55 ft lbs Back lash .006-.009 And I would err closer to 009 than 006. That is what the 1969 Dodge F.S.M. calls for on the torque OP, the ring gear bolts are normally a one time use application and throw them away from Mopar, I cheat and reuse them and add some blue locktite to replace the stock factory locking compound Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: 489 Case bearing cap torque? [Re: Cab_Burge] #1785262 03/22/15 12:19 PM 03/22/15 12:19 PM
Joined: Jun 2005 Posts: 5,102 Western Md. skicker OP "The Champ"
skicker OP "The Champ" Joined: Jun 2005 Posts: 5,102 Western Md.	That works...I have this set-up for myself and another member to assemble Wednesday. Now just waiting for the box of parts from Cass and I'll be good to go. Thx for help... ...FAFO...

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