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Old 03-30-2005, 09:40 PM
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Rearend fitting question...

Allright, I need to know if a 78-84 rearend out of a Chevy Malibu will fit perfectly (bolt on) in a 53-54 GM car. I've been told so but just wanted to make sure. Is there gonna be any troubles involved in doing this?
And while we're at it, what tranny can be hooked up to a Pontiac V8 that'll bolt right up without using adaptors? Are the manual trannys that'll work too? Apparently Olds, Buick and Pontiac trannys will work, but again I just heard that and I'm not sure.

Thanks a lot,


Mike

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Old 03-30-2005, 10:31 PM
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i don't think so

A 78 to 84 g body rear end uses a 4 bar set up with coil springs.

The 53 -54 uses leaf springs. If I am not mistaken.
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Old 03-31-2005, 05:54 AM
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According to Chassis Engineering, a 68-74 Nova multi-leaf or a 67-69 Camaro/Firebird rear end is the way to go. Use CE part AS-1021CCG to mount it. I think the 53 -54 still used a torque tube rear end. The springs were designed to only support the weight of the vehicle and they were still prone to break. Add axle wrap up control to them and you are bound to break them. Additionally, you have to make modifications to center the rear wheels in the openings. The CE kit takes care of all these problems. Mine is coming for my 41 soon. Hope it is here by the weekend since it is supposed to be nice here.

The BOP Turbo 350 and Turbo 400 are both fairly readily available. The internals are basically the same as the Chevy version. There were some "switch pitch" versions of the 400 which had a stator in the converter which changed pitch angles. If I remember correctly, you had an extra wire running to the transmission and the stator support splines were about half the length of the normal version. It limits you to a switch pitch converter, but you can hard wire a switch which will allow you to have a regular stall for normal driving and a higher stall at the flip of a switch.

Pontiacs came with modern 3 and 4 speed manual trannies from at least 59 and later. I had a GTO with a Muncie. The mid 60's / early 70's bell housing will work with a Muncie. I would go with a blow proof if you are getting serious. Make sure the crank has a pilot bearing in it. Not sure about adapting more modern trannies, but I am sure there are ways.
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Old 03-31-2005, 11:11 PM
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Yeah they're torque tube rear-ends so that's no good. Thanks a lot redsdad
I guess my source was wrong, maybe the 78-84 fit good lenghtwise can you just weld on plates to mount the existing leaf springs on the car?



Mike
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Old 04-01-2005, 05:49 AM
Will I ever get it done?
 

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Not sure about the width. Cut off the lower arm mounts and grind smooth. Be careful not to gouge the tube. CE Part No. AU-2229 is for the weld on spring pads. Get the whole car set up, set the pinion angle, tack the pads to the rear end, then pull it out and weld them up. You can use a cut off wheel to remove the upper mount eyes and grind the housing smooth.
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Old 04-01-2005, 08:14 PM
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Awesome, thanks redsdad that's all I needed to know.



Mike
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