Breaking in new gears
02-13-2009, 08:13 AM
#3
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Here is what I was told by person who built my rearend.
standard, plain, regular 'ol parts store 80/90 gear lube... definetly no synthetics though.
do 3 heat cycles with regular street cruising driving... no sustained highway speed or launches. after minimum 3 heat cycles, then do whatever you like. heat cycle is from cool to full operating temp, then back to cool. usually 1-2 hours cool time.
after minimum 500 miles change out the gear oil. use whatever you like and what viscosity fits your needs.
This may differ for you slightly as I am running a Tru trac in my Fab9"
standard, plain, regular 'ol parts store 80/90 gear lube... definetly no synthetics though.
do 3 heat cycles with regular street cruising driving... no sustained highway speed or launches. after minimum 3 heat cycles, then do whatever you like. heat cycle is from cool to full operating temp, then back to cool. usually 1-2 hours cool time.
after minimum 500 miles change out the gear oil. use whatever you like and what viscosity fits your needs.
This may differ for you slightly as I am running a Tru trac in my Fab9"
Last edited by SS1875; 02-13-2009 at 05:12 PM.
02-13-2009, 11:19 AM
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the gear manufacturer laps the teeth before they ship them to you. The majority of the heat generated is from the bearings breaking in, not the gears. A good quality lube will not break down under high heat to the point that it will damage the teeth. Just drive it.
02-13-2009, 02:57 PM
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Jason at TDP told me when he did my gears to do about 15 heat cycles. Drive for about 15 minutes and then let it sit about 2 hours. You should have about 500 miles before you beat on them.
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02-13-2009, 04:57 PM
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floor it every chance you get, brake torque @ 5k rpm at every red light and go on the highway and stay in first gear!
lmao, just joking
i have also heard 15 cycles as a few posts above me said
lmao, just joking
i have also heard 15 cycles as a few posts above me said
