Technical Bubba the 32 5 window

I have purchased a 1932 5 window that has a 1956 Chevy sedan 8.125 10 bolt rear end in it. All the bearing in it were upgraded to tapered roller bearings, Moser axles, Eaton style posi. and a new Richmond 3.55 ring and pinion. The engine is a 377 desroked world products aluminum block with a M22 4 speed. The rear end was set up professionally and has not been ran yet. How much worry will I have using this rear end for street using 275-60 R 15 tires.

 

That's a pretty wide open question. Typically 377s are a fairly high rpm engine and the car when completed will be fairly lite weight. The real question is how are you going to drive it? Do you just want to row it up through the gears around town, or do you intend to dump the clutch on a 5000 RPM launch?

 

I have had a 377 in a Vega and loved running the RPMs up just driving around town. This 32 probably will be more for showing off and sounding great. can't see High RPM dumps with that size tire.

 

I believe most issues have been upgraded, I'm not sure if the carrier Casting #3737306 is my biggest issue.

 

I can only speak of my one experience with these rearends.
My high school car was a 57 BelAir, it had a TIRED 283 out of a 64 Impala and a Fenton shifted three speed with 3.08 rear gears, put a T-10 in it then s#/t started happening, the spider gears were the first to go, found a 4.11 third member at the local wrecking yard and then snapped an axle in the high school parking lot, was just showing off, didn't even have much traction because the parking lot was mostly gravel.
Never touched another one after that.

 

Ouch. I hope, I have the axle and posi. issue covered.

 

I'm surprised someone hasn't recommended to grow up already...... but then what fun would that be, nothing better than being young at heart !

 

I think you know the answer.
If you don't abuse the rear it will last a very long time.
If you insist on abusing it, not very long.
How many rods do you see with Ford 9"? Why?

 

Ding Ding Ding!

 

To me, it seems foolish for the previous owner to have put that much money in a tri-five rearend behind anything but a very mild engine in it.
Like has been mentioned it just depends on what the ultimate goal (environment) is for the car and the driving style of the owner.
At least with the M-22 transmission there should not be a problem there.

 

My roadster had a '56 Chev rear end in it for 60 years, behind a 331 Cad and Hydromatic. The original builder blew the rear end, his son inherited it and blew the rear end, the friend I bought if from blew the rear end. So I never really abused it. During the recent complete redo I pulled the rear end apart to replace the spring hangers and you guessed it, found a few missing spider gear teeth. Never even knew I'd hurt it. It's got a 9" in it now...

 

After dealing with an open ring and pinion and spider gears, the fix is a posi. After that you will break the cast cap next to the ring gear. The repair after that is a steel strap on top of the cast cap. 50 to 60 years ago parts were readily available, and cheap. Now we are back to making our own fixes on those rear ends. Even so they are still a bit tender.

 

I kind of relate these rearends in the same vein as a Saginaw four speed in that they work (ok)..............until they don't, a "well, do you feel lucky" sort of thing.

 

a bronze/brass big bolt threaded into the hsg. to ALMOST touch the ring to prevent deflection...

 

You'll be fine until slicks come into the equation. Traction, the great weak-link finder.