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Hi guys, so I've been talking with some of the old school racers around here and being told that unless I'm going to be putting racing slicks on my bird and doing some serious street or strip time on her, that the 741 (with the smaller pinion and u-joint) is more than strong enough to put in a...

Thank you for the info guys!!!

Thank you, that's very helpful information. I'm thinking the 3.23 might be the way I go.... Enjoy the Ride!

Thank you, that's a very useful tool!

Tbank you. Have 14 inch Cragar mags with 270/60.

Thank you for the detailed info. I was thinking I could use the u-joint housing off the 741 and put it on the 489 and not change drive shafts. The u-joint yoke looks like it screws off of the pinion. Thanks again for your hep.

Mark, new to this, so if I pull the 741 carrier (non-sure grip) can I install a 489 sure grip and not have to change any other bearings or axles? Thanks for any insite you can provide.

Hi, I'm replacing the 741 carrier that came with my 69, with a 489 sure grip. I have a RM23 with the 335HP- 383 with the Hurst Package 4 speed. Question: will the 3.23 gear set up give the best balance between performance and mileage. Or is a 3.55 or 3.90 a better way to go. What set up are...

Hi, I'm looking too

I thought that might be the case and will go that route. Thanks so much for adding the pic!! That helps.. I'm always concerned about moving 50 year off wire bundles around, the covering gets brittle, breaks off and then you've got a real mess.. Thanks again for the reply..

Thank you for the link to the service manuals. That makes things a lot easier!!!

Thank you! Will give that a try.

Thanks Russ69Runner. Probably time to invest in a service manual..

Hi All, New to this group, just got a 69 and in the process of getting all the interior lights working. I have the light package option and have the radio, ash tray and glove box removed and needing to know best way to get to the ignition switch light. Is it best to remove the switch or get...