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Author Topic:   ***pinion/ring installation advice***
racinfool
Member
posted February 15, 2003 09:56 PM
HELP - NEED INSTALLATION PROCEDURE, SET-UP, MEASURING INFORMATION, AND DO'S & DON'TS, ETC.

I'm installing the 'guts' from my previously (bent) 10 bolt GM rear into another housing.

Using same gears and bearings with the exception of a new pinion race, new crush sleeve and seal.

We installed the existing pinion setup as is (with a new race, crush sleeve and seal) and set it at 15 inch lbs. rotating force.

Then installed the ring setup as is. Measured the back lash and it was 0.019".

Moved some ring/bearing spacers (or whatever you call them) and got 0.010".

Read in a pamplet to set for 0.012"-0.014". It also said 0.004" tolerance.

ARE WE OK?

When we turn it it feels as though the gears are 'cutting' each other. (this is with no oil) Hmmm!?

How do you check to see if the gears are meshing properly? I have the pictures which show how they should seat/ride. What can I use to check that? Grease? Anti-sieze?

***If they are not riding correctly how do I correct that?????

WHERE CAN I GET THE 'SPACERS'?

Please, your help is appreciated.

THANKS

PS The pamplet also said to check the distance from the pinion face to the center of the ring gear (perpendicularly). It's to be 2.508". (0.002"+/-) HOW IN THE WORLD ARE YOU MEASURE THAT???




PEDDLER
Member
posted February 16, 2003 09:45 AM
check the gear mesh with white lead or a marking compound.

measurement is done with a dial indicator.

shims are used to adjust depth and side available from a dealer or gear company.

or take it, as I do, to someone who does this type of work.


stockcar5
Member
posted February 16, 2003 10:07 AM
i'd back it down to .008-.010 backlash. with only the pinion installed check your preload....should be 15-25 in lbs stay on the high side if bearings are new...low side if they are used. then add your ring gear and with the correct shims try to get about 15 in lbs preload on the side bearings (remember that you must take your measurement and multiply that by the gear ratio to get side preload). use gear marking compound to check tooth contact pattern. and if i were you i wouldnt worry to much about pinion face to ring gear measurements....thats to get you in the ballpark on pinion shim thickness (usually .035 or so)

luke

Pickel
Member
posted February 16, 2003 10:45 AM
when I set the gears in my 10 bolt..I jus used every thing that was in tha thousing..I have been runing it since 94 and have not had a prob and gears look new..I jus made sure that a had a little bit of play beteen Pinonand gear..


rico 08
Member
posted February 16, 2003 08:58 PM
me too pickel i also reuse the crush sleeve i just put it over a peice of pipe and hammer the bulge out and use it again.


racinfool
Member
posted February 19, 2003 07:14 PM
Thanks for your input guys!



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