BraMas

Yes I know another F'en gear question. So I had my brother come over this weekend to help put my 4.10 in my car because he has done it before. So we come to putting the bearing on the pinion and I tell him we need to set it with some shims and he tells me we don't need them because all the ones he has done the bearing goes flush with the pinion gear. so I go against my better judgement and trust him. Anyway my question is there an easy way to determine what the shims should be on the pinion. My idea is to measure the gap between the pinion gear and the bearing on the old one and shim the new one the same amount. Will this work?

BraMas

will someone answer me please. I'm feeling left out here. I just want to put my rearend back together and have fun.[sm=gears.gif]

Niteryder

No way.. Using the old mesurements is bad! U need to use the proper tools. In the past I have used a dial indicator, fealer gauges, and the plactic compound to see how the gears are meshing. Did instructions not come with your gears?


The numbers may not be exactly what you need, here is a fairly good "how to" on what you need to do. At the very least, a final result: http://carcraft.com/techarticles/116_0411_bolt/

70 MACH I

Pinion depth determines the point of centrality in the ring gear. In simple terms it means that your wear pattern needs to be as close to possible centered in the ring gear tooth. Your ring gear side thrust centers the tooth contact as close as possible to the center of the tooth depth. The whole idea is to get the gears to mesh in the meatiest part of the gear surface. And yes, of course backlash must be set with a dial indicator. The teeth of the gears are painted with white lead to detect the wear pattern and determine centrality, these settings are critical for quiet and durable operation.

John

03sonicgt

I would save the time and energy and get them installed the right way. Do it once, do it right.

70 MACH I

I agree, get someone you know that will do the job right, I'm too **** to let people touch my machines, I've got to do it myself. If you want to do it, read everything you can find on the subject, you will understand the process completely. The big pain in the *** with gears is shimming the pinion depth, because the pinion bearings are pressed, and the process is trial and error, not everyone has a hydraulic press and bearing spreader plates at hometo do and redo till it is right.

John

BraMas

Thanks for the info guys. That car craft article was awsome. I was gonna send it to a shop but I wanted to learn how to do it myself. According to that article Reider has a set up gear that slids on the pinion so you can set up the pinion depth without pushing the gear on and off.

Mustangkiler

Just easier with rearend out the car, just gottta torque the pinion gear with shims n keep takin it back out and adjusting till u get the right depth and gotta torque it down each time till theres no play in the pinion usually at least 200 lbs and dont use the crush sleeve till u got it shimmed up right. I have always learned the hard way, its the only way when it comes to doing it yourself.

BraMas

Thanks for the info on the crush sleeve. I thought about leaving it out but wasn't sure if it would set up correctly without it in.

MustanggtCorey

Absolutely Dial em in man. Have to.