Changing the rear end on the Bee

[WM23N1G1]

We"re near the (rear) end! 

741 3.73 ring and pinion                     $185
Bearing/seal/shim kit                        $100
Set ring gear bolts                        $15
Pair "Green" wheel bearings                     $60
Pair inner axle seals                        $10
Power-lock clutch pack                        $55
Bottle friction modifier additive                  $5
New 29 spline 7290 yoke                     $100
7290/7260 conversion U-joint                  $25
ring gear bolts                           $15
1/2" dia lug studs                        $20
pinion snubber                           $15

Had to buy a standard pinion snubber, because mine is :
The U-bolts are tired, I don't know if I will make something for the threads, or just buy new ones :
The cleaning of the pumpkin is coming nicely :

[WM23N1G1]

$610 later, the parts are on their way. 

[Nacho-RT74]

the carrier is interchangable, ring and pinion gears are not.

I have to say I'm a little bit disagree on that... I know has been told by the experts they have to be a matching set, and I definitelly not an expert but I just can say as a testimonial I have a 741 case with 3:23. Got a NOS 489 pinion and gear set AND GEAR IS THE SAME PN than the one I found on my 741. In fact really close built ( machined ) date too.

Anyway I know all what has been said about the matching set. That can be matched again with the shims  and carrier adjusting bearing nuts thought, need to be done from the first instance like on factory, when they label the offset needed on every piece. However, aftermarket pieces I have seen ARE NOT labeled, son need to be done anyway!

they are the weakest of the 8.75

well, yeah, but that doesn't mean is not strong enough. Never have seen one broken... maybe they can get broke on serious racing. Even in that way, they still got the 10 spline option , that does mean something

[WM23N1G1]

Mine wasn't broken, but the pinion "ate" the gear.

[Nacho-RT74]

well thats a diff stuff and is not in relation with case kind really

[Belgium R/T -68]

Also beeing from overseas, RD: what's wrong with jimsautoparts? They seems to have a huge stock and inventory. 

[mikesbbody]

whats wrong with jims? service or lack of but i have never dealt with jims.

[WM23N1G1]

I received yesterday one parcel:

new studs and bolts:

U-joint, new yoke :

Bearings and gaskets:




pinion snubber


I think I will get the other parcel tomorrow.

[WM23N1G1]

Hi guys,

I know I should be ashamed, but the rear end has not yet been rebuilt.
Well, I just can't do it by myself because I know nothing about anything...
The friend of mine who could have done it faced some serious issues, and I do have lots of problems too. 
Anyway, another friend of mine found a guy who is really good at mechanics, but who mainly deals with GM cars. He already has rebuilt the rear end of his wife's '71 Charger (not a 8 3/4), but he doesn't seem too confident about rebuilding mine...
I found a conversation with Dr Diff in my email related to High Performance MOPAR Magazine, May 1997, PGS 28-30. I just can't find any file on my system related to that:

I sell a shim kit that is used to restore the tolerances between the side
gear and spider gears.  This kit is used after machining 0.040" off the base
of the cones to restore traction to a worn out sure-grip.

Does anyone have pics of these pages, or any documentation related to that process? If you ever have any documentation about rebuilding a 8 3/4, I'm really interested!

TIA!

[WM23N1G1]

We're almost reaching the end...  
Still have to change the drum springs , put the oil in, and frighten the old ladies in the streets.  

[WM23N1G1]

Still have to fix a fuel issue, but the Bee made its first meters by itself a few days ago.
We're seeing the light at the end of the tunnel.

[68RED4SPEED]

http://www.moparmusclemagazine.com/howto/mopp_0308_mopar_rear_end_gears_set_up/photo_01.html

[WM23N1G1]

Thanks for the link, I do hope I won't need to remove once again the rear end to adjust the settings...

[68RED4SPEED]

Hehe my fault, answered the last post at page 1 and didnt see there where a page 2 until it was to late, anyway now you got it.
Sven

[WM23N1G1]

Hi,

made 20 miles last saturday, and kaboom, away went the propeller shaft. 
Apparently, one of the clamps on the rear axle flange broke, and the assembly... disassembled.
I managed to park, get the shaft before someone hits it, and put it in the trunk. No one was hurt, and the shaft still looks good.
I suppose something blocked in the rear end, and the weaker part of the assembly went south...