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BB - distributor drive gear bushings #985518 05/03/11 04:54 PM 05/03/11 04:54 PM
Joined: Apr 2008 Posts: 500 NoVa E ebodyseast OP mopar
ebodyseast OP mopar E Joined: Apr 2008 Posts: 500 NoVa	There were two drive gear bushings included in this Mopar BB tear down kit, one is a heavier bronze(?) and the other a lighter aluminum(?) - wondering which one is correct for stock 1968-71 B/RB applications? Is the bronze bushing used for upgrading to the hardened dist. drive gear for hardended cam gears? TIA. Last edited by ebodyseast; 05/03/11 04:57 PM.

Re: BB - distributor drive gear bushings [Re: ebodyseast] #985519 05/03/11 05:48 PM 05/03/11 05:48 PM
Joined: Dec 2006 Posts: 3,533 Indiana F Fury Fan master
Fury Fan master F Joined: Dec 2006 Posts: 3,533 Indiana	All teh factory bushings I've seen were bronze. More folks will chime in - be aware, there's a HUGE controversy of whether you need to use the special burnishing tool to properly install that bushing.

Re: BB - distributor drive gear bushings [Re: Fury Fan] #985520 05/03/11 06:15 PM 05/03/11 06:15 PM
Joined: Apr 2008 Posts: 500 NoVa E ebodyseast OP mopar
ebodyseast OP mopar E Joined: Apr 2008 Posts: 500 NoVa	Thanks Fury Fan, I sure do appreciate you.

Re: BB - distributor drive gear bushings [Re: ebodyseast] #985521 05/03/11 06:28 PM 05/03/11 06:28 PM
Joined: Oct 2007 Posts: 288 Birmingham, England M Mick70RR enthusiast
Mick70RR enthusiast M Joined: Oct 2007 Posts: 288 Birmingham, England	I replaced an aluminium bushing in a 68 block with a bronze bushing. I assumed they were aluminium from the factory but maybe it had been replaced some time in the past. 1970 Road Runner 505 cid MCH CNC ported Stealth heads MP 528 camshaft 4 speed GV overdrive 11.98 @ 117 on street treads

Re: BB - distributor drive gear bushings [Re: ebodyseast] #985522 05/03/11 06:30 PM 05/03/11 06:30 PM
Joined: Jan 2003 Posts: 26,000 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 26,000 Rio Linda, CA	Some later blocks had a bushing that resembles aluminum, dissolves quickly when the block is hot-tanked. If you decide not to use the correct burnishing tool, check the fit of the intermediate shaft before assembling the motor. The INTERNET, the MISinformation superhighway

Re: BB - distributor drive gear bushings [Re: ebodyseast] #985523 05/03/11 06:31 PM 05/03/11 06:31 PM
Joined: Aug 2005 Posts: 11,543 chicagoland,usa B buildanother I Live Here
buildanother I Live Here B Joined: Aug 2005 Posts: 11,543 chicagoland,usa	I have not seen a new alum(silver) one, but have seen some on blocks taken apart. (they were usually spinning in block- not good. I would also use the bronze unit, and they do sometimes (not always) fit shaft tight if you do not ream.

Re: BB - distributor drive gear bushings [Re: buildanother] #985524 05/03/11 07:10 PM 05/03/11 07:10 PM
Joined: Jan 2003 Posts: 2,530 Nunya CA CR8CRSHR master
CR8CRSHR master Joined: Jan 2003 Posts: 2,530 Nunya CA	Quote: I have not seen a new alum(silver) one, but have seen some on blocks taken apart. (they were usually spinning in block- not good. I would also use the bronze unit, and they do sometimes (not always) fit shaft tight if you do not ream. As stated above, to install it the correct way you do need the correct burnishing tool....IMHO

Re: BB - distributor drive gear bushings [Re: CR8CRSHR] #985525 05/04/11 09:31 AM 05/04/11 09:31 AM
Joined: Dec 2006 Posts: 3,533 Indiana F Fury Fan master
Fury Fan master F Joined: Dec 2006 Posts: 3,533 Indiana	Ebodyseast - I had a link in my favorites: https://board.moparts.org/ubbthreads/show...&PHPSESSID=

Re: BB - distributor drive gear bushings [Re: Fury Fan] #985526 05/12/11 12:27 AM 05/12/11 12:27 AM
Joined: Apr 2008 Posts: 500 NoVa E ebodyseast OP mopar
ebodyseast OP mopar E Joined: Apr 2008 Posts: 500 NoVa	Thank you Fury Fan - good read for sure, as an update, on Bill Rolik's Mopar parts web site he's listed bronze/oilite drive gear bushings as an updated/improved part that allows for better oiling to happen, states the aluminum bushings are stock...

Re: BB - distributor drive gear bushings [Re: ebodyseast] #985527 05/12/11 10:10 AM 05/12/11 10:10 AM
Joined: Jan 2003 Posts: 21,085 Niles , Ohio T therocks oh wait.but hey.lets see.oh yeah.
therocks oh wait.but hey.lets see.oh yeah. T Joined: Jan 2003 Posts: 21,085 Niles , Ohio	Ive torn a lot of blocks apart.All were bronze bushings.Never found an aluminum one in probally 50 blocks.Rocky Chrysler Firepower

Re: BB - distributor drive gear bushings [Re: therocks] #985528 05/13/11 03:59 PM 05/13/11 03:59 PM
Joined: Jan 2003 Posts: 26,000 Rio Linda, CA John_Kunkel Too Many Posts
John_Kunkel Too Many Posts Joined: Jan 2003 Posts: 26,000 Rio Linda, CA	In the pic below the bushing on the right was removed from an original '73 400, the one on the left is the typical bronze bushing. The bronze bushing weighs 24 grams, the one on the right weighs 9 grams so I think it's safe to assume that the lighter one is aluminum. 6631449-DistBushs.jpg (137 downloads)

Re: BB - distributor drive gear bushings [Re: ebodyseast] #985529 05/13/11 07:06 PM 05/13/11 07:06 PM
Joined: Oct 2005 Posts: 8,911 Ontario, Canada S Stanton Don't question me!
Stanton Don't question me! S Joined: Oct 2005 Posts: 8,911 Ontario, Canada	How important are the oil groves. The new bushing in my block has none.

Re: BB - distributor drive gear bushings [Re: CR8CRSHR] #985530 05/13/11 08:37 PM 05/13/11 08:37 PM
Joined: Jan 2007 Posts: 7,664 IN A ahy master
ahy master A Joined: Jan 2007 Posts: 7,664 IN	Quote: Quote: I have not seen a new alum(silver) one, but have seen some on blocks taken apart. (they were usually spinning in block- not good. I would also use the bronze unit, and they do sometimes (not always) fit shaft tight if you do not ream. As stated above, to install it the correct way you do need the correct burnishing tool....IMHO Since I had a "near miss" on a bushing installed without the tool I will always use the bronze bushing and install with the busnishing tool. Last time I was able to borrow one from a Dodge dealer... next time I'll try to borrow agan and buy one if necessary.

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