PRop uj part number help

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top drive

Well-Known Member
Posts
2,694
Location
Peoples republic of culter
60 miles from my truck.

Need to order parts.

Rear ujs need replacing.

Its a stock prop on an 87 90. With an lt77 box,

Whats the part number i need , i know ther are big ones and small ones and i bought the wrong ones last time using my own guess work :)!

Cheers
 
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Front ones looked like that ...

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I don't know if this will help you where you are.
In a parts manual I have it says.

Front propshaft
UJ RTC3346 for propshafts FRC5566 & FRC6243
UJ RTC3458 for propshafts FRC8390 & FRC8386

Rear propshaft
UJ RTC3346 for propshafts FRC7732 & FRC8385
UJ RTC3458 for propshafts FRC8392 & FRC8393
 
There's an easy way to differentiate the large and small UJs. The grease nipple on the large one is offset (refer to your picture), i.e. it is biased towards one face of the UJ. On the smaller ones, the hole is in the middle. whenever I fit large ones, I keep this in mind so as to have the grease nipple facing the propshaft rather than the flange. Otherwise it would be impossible to grease.
 
Feck it ill wait till i get home and take my prop off and bob along to caldwell and dempster and get a match in person :)

Sods law ill order one set and itll be the other . I did this with my front prop many years ago.
 
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