56D500boy - 2021-05-16 10:24 AM
.
Previously, in a different
(but related thread
) I said:
56D500boy - 2019-05-06 3:23 PM
Today I received another set of driveshaft bits. The rear looked good, i.e. earred Detroit cross U joint. Unfortunately, the front ball and trunion housing is 4.25" in diameter and the driveshaft tubing is 3" in diameter. Yes that is correct, the largest ball and trunion has the smallest diameter driveshaft tubing.
In review:
Ball and Trunion.......Driveshaft......Trunion
Housing...................Tubing............Pin
Diameter..................Diameter........Diameter
3.75".........................3.5".............???
4.0"...........................3.25"...........0.625 (ish) inches
4.25".........................3.00"...........0.70 (ish) inches
Recently, I have been trying to help Dieter in Schweitzerland with his front U-joint problem. This required that I clean up and measure a few things on the large B & T front U joint that I had gotten from Big M two years ago.
Turns out that the diameter of the flange is 4 3/8", not 4 1/4". This would make a difference at the eBrake drum at the end of the transmission. The tubing diameter is 3 1/16" not 3" even. The pin diameter is 0.700+/-0.005" so no change there.
I checked the PN of the B & T housings for the 1960 torqueflite cars
(like Dieter's 60 Chrysler
(300
)
) and it is 1739 920 just like it was for the 57-58 cars with Torqueflites.
(The replacement ball and pin
(roller bearings
) PN is the same in 1960 and 57-58 as well, 1739 927.