im getting a T-lok and 4.10's in a few days and i'm wondering if there i a break in period and for how long or how many miles before i can start doing 1/4 mile races?
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silver 2000 v6 auto - FIRST car
--mods: am 1 1/4" wheel spacers/ am cold air intake / custom H pipes / GT take offs / magnaflow mufflers/ FRPP T-lok/ 4.10's/ 93 preformance tune - sct livewire flash tuner/ black 18" FR-500's... ----saving for a fully built engine, then a TMA turbo, then shooting for the 12's
When i get gears installed, i usually drive easy for a few hundred miles. I think everywhere I've had gears installed, they say the samething, drive easy on them at first.
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1995 Mustang GT-Heavily Modded-Sold 2003 Ford Lightning-Sold 1997 Saleen-5.4 conversion-Sold 2005 Mustang GT-Torch Red-Sold 2003 Mustang Cobra-Oxford White 2003 4Runner V8 Sport Edition 4X4
ok sweet ill keep it easy for the first 100 miles or so, good thing the mech shop is like 45 mins away lol
but after 500 miles i have to get the fluid changed in the differential again?
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silver 2000 v6 auto - FIRST car
--mods: am 1 1/4" wheel spacers/ am cold air intake / custom H pipes / GT take offs / magnaflow mufflers/ FRPP T-lok/ 4.10's/ 93 preformance tune - sct livewire flash tuner/ black 18" FR-500's... ----saving for a fully built engine, then a TMA turbo, then shooting for the 12's
The mustang shop I went to was about an hour away so I just took it easy on the way back. They said I didn't need to do a fluid change after break-in. I've had the same redline fluid in there for years.
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2004 3.9L/auto
-Mac CAI, 73mm Mass Air
-Dual Flowmaster 40s, H pipe, 2.25 in pipe
-42% Underdrive Pulleys
-SCT Tuned
-4.10 Gears & Trac-lok
Full length subframe connectors, Tociko HP shocks/struts, Steeds CC 3 bolt plates, Steeda bumpsteer kit, Eibach Prokit, 8.8 rear ends w/ 4.10 gears, 93 Octane Tune, BBK CAI, MAC Long tubes, catted bbk H pipe, MAC catback, ASP 25% UDP, Rear seat delete (custom ABS plastic with black carpet), JMOD, and more to come.
break in for new gears? 
ill keep it easy for the first 100 miles or so, good thing the mech shop is like 45 mins away lol
