pinion depth 8.8 gone

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Post  5pointslow on May 31st 2016, 2:30 pm

had a housing all back braced and tubes welded ...then brought to the local guy that sets up a lot of 8.8 for racers in the area said he has never seen one this bad

pinion depth is so bad out , said a .010 ship wouldnt even go
almost like the carrier is way off and the rear end was heated up to much


Came back from vacation today to hear this Evil or Very Mad
im pissed not sure what to do , now i either get another housing and start over but just paid good $ worth of work done with on housing

i have axles strangege already and spool

going to have chassis shop that did work look at the rearend and find out the cause


ANY OF YOU GUYS EVER COME ACROSS THIS ?
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Post  5pointslow on May 31st 2016, 2:36 pm

coilover brackets have been welded on and arb as well and yes it was done on a jig
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Post  gt350hr on June 1st 2016, 1:24 pm

None of that should have affected the pinion depth. Are you sure the bearing race is fully seated and or is the matching one for the pinion. I apologize if it has already been together with all of the components. I've done many 8.8s and don't see how the casting would have been affected by welding on the tubes , or for that matter to the main case itself.

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Post  supervel45 on June 18th 2016, 3:46 am

gt350hr wrote:None of that should have affected the pinion depth. Are you sure the bearing race is fully seated and or is the matching one for the pinion. I apologize if it has already been together with all of the components. I've done many 8.8s and don't see how the casting would have been affected by welding on the tubes , or for that matter to the main case itself.

^^^^^^Same. Does not add up. Run a solid crush sleeve just like the GM Boys though but, that's for pinion bearing pre-load. Are the gears new and machined correctly?

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Post  5pointslow on June 19th 2016, 8:22 am

This was nothing to do with gears the issue was when using ford tool that simulates the carrier bearings .more or less the initial setup .

The issue was actually a defect in the pinion bearing ..same part number .018 difference .

It's all set now and together ...guy that sets these up never had a bearing issue from new bearings

Now I just need to get a hold of butterbean for that convertor

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Post  5pointslow on June 19th 2016, 8:24 am

Used solid crush sleeves ...Richmond gears.
Everything new
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Post  supervel45 on June 19th 2016, 3:14 pm

Please Tell me they where not Timken? I guess everyone can have a Bad Day in the QC Department if that is what happened, or maybe it just got mixed up along the line somewhere. Glad it was an Easy Fix anyway.

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Post  5pointslow on June 19th 2016, 7:32 pm

It was a Timken .....same part #

I work in manufacturing , so I know first hand it can happen you just try to limit it

The height of the bearing race was the issue
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Post  crittersf1 on June 30th 2016, 2:44 pm

Glad I'm not the only one that's run into that problem
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