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Re: '06 Tremec T-56 into '68 GMC C-15 w/ 600HP BBC 427 questions...
Quote:
Originally Posted by geezer#99
So you’ve got a rompin’ Stompin’ 600 horse 427 that’s not gonna want to run nicely anywhere below 2500 rpm and you want to use a tranny that has likely all the wrong gear ratios plus o/d and you wanna change the rear gear too.
If you don’t mind running around in 3rd most of the time and carry those other 3 gears for a top end run, then it might work okay.
What gear ratios does this new tranny have?
Have you looked into a wide ratio m22?
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Agree (one geezer to another)! I like a mid 3 gear on the street, & I feel that the wide ratio Muncie will work with that. If you plan to run a 4.10, or 4.56 gear + OD on the trans, understand about drive shaft speed.....Have a good shaft built/balanced, to deal with it! The speed on that shaft is engine rpms, on a 1 to 1 high gear....add the OD, & the D shaft is spinning faster than the engine  Longhorn
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....
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