john hess Posted October 22, 2021 Share Posted October 22, 2021 hello all. I'm here from the pontiac forum seeking information on a driveshaft dilema I am having. I had a new driveshaft made locally. series 1310 slip yoke and ujoints to be able to use current off the shelf ujoints. problem is output shaft and yoke splines don't match. I was told a yoke from Olds may work. (49-56) If anyone has measurements available that would be great. This will save some skinned knuckles at a junkyard if I knew what to look for !!!! My 53 Pontiac output shaft measures 1.172" yoke OD is 1.5" bearing caps are 1.062" 16 spline I will attach pictures to help explain. Link to comment Share on other sites More sharing options...
john hess Posted October 22, 2021 Author Share Posted October 22, 2021 oh yea, thanks in advance for any information !!! my bad... John Link to comment Share on other sites More sharing options...
The 55er Posted October 22, 2021 Share Posted October 22, 2021 These pages are from an Oldsmobile parts book Group # 5.555 and apparently from 1949-1956 Olds used different yokes for different applications. I don't know what the differences are between all the yokes, I'm just showing pics of a typical driveshaft from a 1954 Olds with Hydramatic for some size comparisons. Mine has the internal C-shaped snap rings. The splines are recessed about 2 3/8" down inside the end of the yoke. There are 16 splines as shown. The measurement between the outer tip edges of the teeth are about 1 1/8", that's as close as I can get down inside there. The smooth part of the yoke is 5 9/16" long and it's OD is 1.67". You can see in the first pic that in 1939-1950 some Olds models used a yoke in which the bearings were retained by a retaining plate but I do not have any further info on the yoke sizes. I hope this info helps you and good luck in your search! 1 Link to comment Share on other sites More sharing options...
Bloo Posted October 22, 2021 Share Posted October 22, 2021 Is this a HydraMatic or a stick? If it is a stick, does it have a 5 bolt top cover or 6? Link to comment Share on other sites More sharing options...
john hess Posted October 22, 2021 Author Share Posted October 22, 2021 53 pontiac 3 speed manual 5 bolt top cover 1 Link to comment Share on other sites More sharing options...
john hess Posted November 1, 2021 Author Share Posted November 1, 2021 55er..... thanks for the effort.. I believe I have found what I need.... got a NOS pontiac slip yoke today.. thanks to @avgwarhawk for the link... (NOSTexasParts.com) just have to get some machining done to it. Pontiac yoke has no provisions inside c clips.... then I should be good. John 2 Link to comment Share on other sites More sharing options...
PONTIAC1953 Posted March 2, 2022 Share Posted March 2, 2022 group 5.555 part # 516601, 1952 to 1954 Pontiacs with standard trans or Hydra-Matic trans. not interchangeable with Oldsmobile slip yoke. Link to comment Share on other sites More sharing options...
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