| Re: [GMCnet] 3.70 FD Install [message #166348] |
Sat, 14 April 2012 21:11  |
KB
Messages: 1262
Registered: September 2009
Karma: 0
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Senior Member |
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Thanks Carl. I did ask JimK, but maybe it was too dumb a question.
The manual wasn't much help on the issue.
Since I just want to stick with a 3.07 (we already have the 3.5 power drive),
think I'll try to find a good core to have rebuilt with limited slip added.
Pretty sure I can pull and reinstall the final drive as a whole,
but doubt I can do anything sensible with the innards.
Ah well, the ever growing wish list...
thanks,
Karen
> Again, I'm not an expert on anything here, but I don't think there is a way to add the limited slip components to the differential carrier without removing the carrier from the housing. Some aftermarket "lunch box lockers" can be added to a carrier in certain conventional drivetrain axles on four wheel drives, without removing the carrier, but most require the ring gear to be removed in order to access the pins that hold the diff gears in place. I suspect the differential needs to be completely dis-assembled to install the limited slip parts. Again, check with Jim K. I don't believe these components are available from any other source anyway.
>
> Theoretically, you could replace the carrier without removing the pinion gear, but you would have to shim the carrier bearings just right, in order to get the backlash correct. Either way, I wouldn't see any way to do this in the vehicle. Bottom line, the FD does need to come out to accomplish this.
> --
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Karen
1975 26'
San Jose, CA
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| Re: [GMCnet] 3.70 FD Install [message #166353 is a reply to message #166348] |
Sat, 14 April 2012 21:44  |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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| KB wrote on Sat, 14 April 2012 19:11 |
Thanks Carl. I did ask JimK, but maybe it was too dumb a question.
The manual wasn't much help on the issue.
Since I just want to stick with a 3.07 (we already have the 3.5 power drive),
think I'll try to find a good core to have rebuilt with limited slip added.
Pretty sure I can pull and reinstall the final drive as a whole,
but doubt I can do anything sensible with the innards.
Ah well, the ever growing wish list...
thanks,
Karen
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That's definitely your best bet. Setting up a differential is a pretty specialized operation. It's probably not all that difficult, but not something most trained mechanics will even tackle. It has to be just right.
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: [GMCnet] 3.70 FD Install [message #166467 is a reply to message #166449] |
Mon, 16 April 2012 00:32 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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On Sun, Apr 15, 2012 at 6:12 PM, George Zhookoff
<George.Zhookoff@haskell.com> wrote:
>
>I feel that it is always simple and no tie up to send another unit so you do not have a coach tied up.
Most of the final drive units we get back as core are on the last
legas fare as the pinon bearing is concerned .
Since we now ship out the Final Drives fron Ohio, we save time and freight.
We are also using Fed Ex and tapered of on UPS.
> (QUOTE)
> Since I just want to stick with a 3.07 (we already have the 3.5 power drive),
> think I'll try to find a good core to have rebuilt with limited slip added.
> Pretty sure I can pull and reinstall the final drive as a whole,
> but doubt I can do anything sensible with the innards.
>
>
> That's definitely your best bet. Setting up a differential is a pretty specialized operation. It's probably not all that difficult, but not something most trained mechanics will even tackle. It has to be just right.[/quote]
>
> Very busy weekend. So I'm late to this conversation. When I picked up my LS 3.70 FD @ JimK's Eastern Region Mega Manufacutring and Distribution Center I had the opportunity to observe the internals when Walt pulled the LS FD cover. I was shown the LS bits and the required machining of the FD inards that allowed the bits to fit. I was very impressed with both the FD and awesome technical expertise.
>
> I was going to swap out the FD myself especially after Ray E. gave me such great advice. No time available on my schedule so I had Zeb Frady do the job which he did in under a week.
>
> Best way to go is to have the boys @ Applied swap out your unit. JimK will figure out the commercial details.
>
> George Zhookoff
> 78 EL II
> Atlanta
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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