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Old 02-09-2013, 07:22 PM
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banjo rearend

Ok so hears the question, I would like to keep the banjo rearend in my sedan but I am wondering will it be a weak link. Not that the flathead has much HP but still going from a four banger to a v-8 might be a issue, any comments would be great.

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Old 02-09-2013, 07:38 PM
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banjo rear

Way too much torque for that rear.
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Old 02-09-2013, 07:41 PM
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Any idea what to do don't really want to go to a 8.8 or 9 inch like to keep a banjo in it.
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Old 02-09-2013, 07:46 PM
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banjo

What are you planning to use for a trans? That may help determine what I would advise
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Old 02-09-2013, 07:48 PM
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I am running a t-5
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Old 02-09-2013, 07:51 PM
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banjo

What year is the rear end out of? The early model a rear ends would never handle the torque...however, if you have a later model, the gears are much heavier as are the axle shafts.
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Old 02-09-2013, 07:54 PM
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It's the one that came in it 31, I think that a 40 fits right in and they are pretty tuff.
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Old 02-09-2013, 08:00 PM
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Ford rears

The weak part is the tapered axle ends and the long key, and you need a big puller to get the rear drums off. A lot of guys change to later design axles and better rear brakes. usually new end pieces for bearing retainer and flanges to mount late model brakes. are welded to your modified asle housings , and it depends on what you are going to do for front brakes to match up wheel lug patterns and brakes. In the 50's the thing to do was use merc spider gears, machine to fit and later design bearings and axles. I don't remember if the changed axle ends and bearings to use merc axles. and all this costs $ $ $ On a T bucket project I bought, they had an early 9 in rear, and had welded on brackets and bolted on the back half of a broken halibrand quick change to have the "look" of a QC Banjo.
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Old 02-09-2013, 08:03 PM
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banjo

We put a flathead 8 in my dads 31 Model A and ended destroying the rear end in a matter of weeks just from casual driving. We changed to a 38 model and it held up well. You would be surprised at the difference between the two. Much heavier and much more durable. Just dont do any 4000 rpm clutch dumps and you should be alright
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Old 02-09-2013, 08:05 PM
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ok guys thanks for the info,sounds like a big deal.
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Old 02-10-2013, 06:22 AM
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Anyone know what the difference is between the 31 banjo and the 40, I found a 40 with brakes,is the 40 just a little bigger. What do I need to look for. Thank's guys
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Old 02-10-2013, 09:37 AM
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I think the truck rear ends were stronger than the car rear ends. The quick change rear ends used car gears for the lighter rear ends and truck gears for the heavier rear ends.
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Old 02-10-2013, 09:50 AM
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Hamb info

Some one on the Hamb forum probably knows the answers, I thought 1/2 ton pickups had the open driveline, but the gears, the same ? I think some of the older heavier quick changes used 3/4 ton internals. Not sure ? At one time some one was building a quick change using an olds housing with a drop out front and tin cover rear where the QC parts bolted on. I put a stock 456 rear in one of my roadster, hoping to someday find an olds QC but never heard of them again.
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Old 02-11-2013, 06:41 AM
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I was wondering if there are any difference in the 31 banjo and the 40 banjo as far as appearance go's or is it just the inside being that the gears are just bigger in the 40. Like to know if there are anything to look for like markings things like that,thanks for any help
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Old 02-11-2013, 06:53 AM
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bano rear end

I believe the 40 is 2 inches wider to the drum then the 31 is. drum is slightly wider. and the axle tube housing is 1/2 inch larger in diameter.
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