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Old 12-01-2003, 08:44 PM
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tranny/driveshaft ?'s

Hello everyone,
I am new to this forum and have a few quick questions. First, I have an 84' Buick Regal that is my project car. I am planning on replacing the stock V6 3.8L with a new Chevy 350 SB and TH-350 tranny. I have unbolted everything and removed the 2 motor mount bolts.The only thing left to do is disconnect the driveshaft from the stock tranny,then I can pull the old motor/tranny out. This is where I ran into problems. How exactly do I disconnect the driveshaft from the tranny? Also, will I have any problems dropping in the TH-350(like do I need any adapter plates..etc?) Also, will motor mounts from any 70-80's car with a 350 work? Thanks and any info would be greatly appreciated!!!

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Old 12-01-2003, 08:49 PM
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Your driveshaft unbolts back at the rearend and slips out of the tranny.

A chevy 350 bolts directly to a Chevy turbo 350, which will drop nicely into your chassis. You will need the chassis motor mounts out of a Chevelle/Monte Carlo with a V8. I think your V6 ones are different, but I could be wrong.
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Old 12-02-2003, 04:29 PM
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You have a GM G-body car, ANY GM engine will fit in it from the 200 Chevy V-6 to the 500 Cadillac V-8 and the only difference to bolting any of these in your car is the motor mounts and which set of holes they bolt into.
To fit the motor mounts to the specific engine you plan to use, measure from the engine/transmission mating surface to the inside of the rearmost throughbolt hole of the engine mount while it is bolted to the engine and measure the distance between both engine mounted bracket throughbolt holes (this isn't easy as there is an engine in the way of measuring a straight line).
Using both of these measurements you can transfer them with the frame mounts and line up the correct holes or drill new ones as needed.
Without a diagram this is as simply described as I can make it.
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