The advantage of 3.73's is you don't need a speedcal to correct your speedometer and your back road mpg won't be bad at all . Mine does great in the 55mph range, On the highway it will suffer a little. 4.10's aren't much different except I find they still lose mpg in the 55mpg range. On the highway they get slightly worse. and you need a speedcal. I don't honestly care for the torsion differentials only because of the torsion gm's I have seen explode. You can overstack the stock traction lock to get an extra plate in each side, then pack it tighter than stock. Thats my chioce of setup for most applications.
I have built a couple of detroit truetrac's they seem like a good setup.
I was wondering who uses overdrive (O/D) when driving around town (speeds under 55). I am always flipping the O/D button depending where I am driving. Does it cause wear to the trans. if the O/D is disabled for extended times. At constant highway speeds I always enable the O/D.
When accelerating then letting off the accelerate Im getting a slight clunking from the rear of my car, it's mostly when the car is cold, sounds like something is knocking back and forth in the trunk area, haven't got a chance to get her on a lift yet. Not sure if this is a problem people run...
Hi there folks... :smile2:
I finally finished bolting the M5R2 to the 4.6 on my 94 TBird... :xpcool:
Yes (!!!) ... I knew all along that it wouldn't be as easy as the other manual options out there, but I love challenges and it can definitely be done if you are bent on the idea like I was...
Continuing with my tranny saga, I got the original J-Mod valve body back in, car shifts fine when cold, but once it warms up, 1 to 2 is sluggish. I could not figure this out so I took the Cougar into a reputable tranny house and had them look it over, run diags, etc. They could not...
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