OEM vs. Brand name gears
03-13-2008, 02:26 PM
#1
OEM vs. Brand name gears
I'm planning on doing a 3.42 to 4.10/Truetrac swap here in the next month are two, and I'm just doing a little research on what route I should take.
I'm planning on either getting my Truetrac through summit or O'reilly (i recently got a job there). I haven't checked how cheap I can get it through them for yet, but it is $409 on Summit. Part number 913A481
Next, the gears. I'm looking on summit and they carry Motive and Richmond for around $180 for the 4.10's. Are those good prices, or should I go for another brand? Also, would I be better off grabbing some new or used OEM 4.10s instead?
and finally, the install kit. I currently have 108k on the clock, would I need an install kit for this swap? Could I get away a summit brand install kit for about $70?
Help me out
I'm planning on either getting my Truetrac through summit or O'reilly (i recently got a job there). I haven't checked how cheap I can get it through them for yet, but it is $409 on Summit. Part number 913A481
Next, the gears. I'm looking on summit and they carry Motive and Richmond for around $180 for the 4.10's. Are those good prices, or should I go for another brand? Also, would I be better off grabbing some new or used OEM 4.10s instead?
and finally, the install kit. I currently have 108k on the clock, would I need an install kit for this swap? Could I get away a summit brand install kit for about $70?
Help me out
03-13-2008, 02:51 PM
#2
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I say go with the Motives or Yukons from what ive heard... those prices sound about right. Summit brand should be ok for the install kit and yes get one.
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03-14-2008, 09:15 PM
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The new style OEM gears for the 8.6 rears can be a little more difficult to setup due to the way the gears are cut. They're cut at more of an angle and they have to be setup real tight to get a decent pattern. But any good rear end guy shouldn't have a problem though.
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03-15-2008, 10:54 AM
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I've become a big fan of Motive. The past 6 or so gear installs i've done have been Motive. I used the same pinion shim as stock everytime and half the time used the stock carrier shims to get the right backspacing and pattern. They've been a breeze to set up.
I agree on the factory backlash being tight. I checked mine when I pulled it down from stock and it was .005". Aftermarket is typically in the .008-.010" range for a good pattern, although I have gotten good patterns with motive in the .006" range.
I agree on the factory backlash being tight. I checked mine when I pulled it down from stock and it was .005". Aftermarket is typically in the .008-.010" range for a good pattern, although I have gotten good patterns with motive in the .006" range.
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