One more thing to add to that... I've ridden if cars that have 4.10 gears and 4.56 and even one that had 5.13's and there wasn't any gear noise... well... not as loud as mine is. The shop that I had the work done, even hands out this paper that tells you how to break in your gears, and it even says if you hear gear noise, return to out shop right away... Any clue? It's gotta be the trasmission. I sometimes hear some super fast clicking when I first put the car in part, coming from what I believe is the torque converter, and a couple days ago when I went to take off at a stop sign, the rpm's went up to about 2500 rpms and just slammed into gear. Sounds like somethings going out... Also, my transmission must be one out of a lincoln lentech said, becuase my tailshaft is longer then the Mustang tailshafts. Thats why I had to get my driveshaft cut to fit (cut 2 inches off). And when I took it back to the gear shop like i was saying, they told me I had cut off 1 inch too many, and the driveshaft riding further back in the tranny can make a vibration (hence the noise). They said it's not being held in there straight enough or firm enough... Hmmm i'm beginning to hate my car
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Joe Zemaitis, Grand Rapids Michigan
1991 Mustang GT. Mods to date: 4.10 rear end, new POSI, aluminum driveshaft, AOD w/ shift kit, 2 1/2 off road h-pipe, 2 1/2 flowmasters and 2 1/2 tail pipes. Electric fan, Removed air pump and egr tube. Hotchkins upper and lower control arms. New energy suspension rear busings. Hoosier Quick Time Pro 27x10.5x15 and bolt on subframes soon to be welded. Everything else is STOCK. Totally stock ENGINE. 14.29@96 with 130k miles.