Best Place to Buy GM EATON 800 8.5" Posi - Page 2

Dan Fahey · 10-22-2013, 04:50 PM

Quote:

Originally Posted by FED 387

toll free # is 800-328-3850 x 6762-otherwise the other # is his direct line phone #-FED 387

Thanks:

Brent suggested for Drag Racing using the 24 Disk Steels.
For the Street the 18 Disk Steels..

Dan

peteprostock · 10-22-2013, 05:09 PM

Dan .. my Eaton catalog shows 1988 -96 10 bolt clip 8.5 / 8.6 with 30 spline 2.73 gear & up # 19559-010

Tim Kish · 10-22-2013, 05:19 PM

Quote:

Originally Posted by Dan Fahey

FYI..that Number is for some Florida Vacation spam..

Here is his correct information

Brent Bussell -Customer Support
Technical Specialist
Phone# (248)226-6762
Fax# (248)226-6740

My apologies. I got the number from the product engineer in the cube next to them. He must have fat fingered the number.

Dan Fahey · 10-22-2013, 05:59 PM

Quote:

Originally Posted by Tim Kish

My apologies. I got the number from the product engineer in the cube next to them. He must have fat fingered the number.

No Problem..

I have finger dyslexia too

Contacted Brent and he gave me a wealth of information.

Dan

dwydendorf · 10-26-2013, 05:10 PM

I spent more than half my life at the place where the original posi's were built and developed. Allmost all the service units used to be built by hand, they used channel lock pliers to install the preload plates and pounded them in with a hammer. Put as much shim as you can and still assemble the unit-to still be able to put in the pinion gears and washers. They used Texaco Marvak grease to hold the clips on the clutch packs and used gear lube to soak the individual clutches before assembly. It helps if you have a t wrench made from about a 6 inch piece of axle splined to turn the top gear. All the clutch packs were broken in on the factory units, so you may have to take the unit out and reshim if you use new clutch discs that aren't broken in. Make sure you don't use the slotted clutch discs, those were designed to prevent from breaking axles in the oem units unless you can't get anything else. The original units built before the 1980's had cut gears (with the gear teeth cut after the blank was machined)in them but in the 1980's they went to a forged tooth gear (gears were machined by locating on the gear teeth) that was far better than the earlier cut gears. The earlier gears can't be used with the later gears. Hope this provides some more info than what you had.

10-22-2013, 05:09 PM	#12
peteprostock Junior Member Join Date: Oct 2009 Posts: 35 Likes: 0 Liked 0 Times in 0 Posts	Re: Best Place to Buy GM EATON 800 8.5" Posi Dan .. my Eaton catalog shows 1988 -96 10 bolt clip 8.5 / 8.6 with 30 spline 2.73 gear & up # 19559-010

10-26-2013, 05:10 PM	#15
dwydendorf Member Join Date: Jul 2006 Location: michigan Posts: 162 Likes: 251 Liked 19 Times in 7 Posts	Re: Best Place to Buy GM EATON 800 8.5" Posi I spent more than half my life at the place where the original posi's were built and developed. Allmost all the service units used to be built by hand, they used channel lock pliers to install the preload plates and pounded them in with a hammer. Put as much shim as you can and still assemble the unit-to still be able to put in the pinion gears and washers. They used Texaco Marvak grease to hold the clips on the clutch packs and used gear lube to soak the individual clutches before assembly. It helps if you have a t wrench made from about a 6 inch piece of axle splined to turn the top gear. All the clutch packs were broken in on the factory units, so you may have to take the unit out and reshim if you use new clutch discs that aren't broken in. Make sure you don't use the slotted clutch discs, those were designed to prevent from breaking axles in the oem units unless you can't get anything else. The original units built before the 1980's had cut gears (with the gear teeth cut after the blank was machined)in them but in the 1980's they went to a forged tooth gear (gears were machined by locating on the gear teeth) that was far better than the earlier cut gears. The earlier gears can't be used with the later gears. Hope this provides some more info than what you had. __________________ ss/gt 93 t-bird Last edited by dwydendorf; 10-26-2013 at 05:17 PM.