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Uni joint sierra rear
Posted: Tue Mar 10, 2009 3:56 pm
by Turbo Tonka
hi i have a 89 wt sierra but with a narrow track rear centre and rear half of the shaft.The unis a bit sloppy,and our local parts shop couldnt really be much help and had little idea.
i have one here part number:-KOYO RUJ 1783 it has 25mm OD cups and is external circlip and about 64mm across joint flat to flat.
both my nt and wt unis are eternal circlip and seem to be 25mm cup,are they the same?I havent pulled the other one out yet and would like to know first.thanks
Posted: Wed Mar 11, 2009 6:32 am
by Gwagensteve
All 1.3's are the same.
1.0's have internal clips.
Steve.
Posted: Wed Mar 11, 2009 6:36 am
by PJ.zook
The uni's are different front to back on the 1.3's
Posted: Wed Mar 11, 2009 6:53 am
by Gwagensteve
AFAIK No they're not. The come out of the factory with the same uni throughout. the only difference is between 1.0 and 1.3.
Steve.
Posted: Wed Mar 11, 2009 11:41 am
by weaves
My listings here are as follows
SJ410 - 1981-87 - RUJ- 1795 F&R - 1.0 W/ 25mm CAPS (INC STOCKMAN)
SJ413 - 1985-99 - RUJ- 1501 F&R - 1.3 W/ 22mm CAPS
SJ413 - 1987-00 - RUJ- 1795 F&R - 1.3 W/ 25mm CAPS
Weaves
Posted: Wed Mar 11, 2009 3:53 pm
by PJ.zook
I just replaced em and my front shaft's uni's were physically smaller than the rears.
Posted: Wed Mar 11, 2009 4:13 pm
by Gwagensteve
Never, ever, seen different cap sizes. I've heard of the part listing for different caps for 1.3 sierras too, but I've never seen a 22mm cap in a car.
I've seen a LOT of sierras.
Steve.
Posted: Wed Mar 11, 2009 6:58 pm
by Turbo Tonka
that looks like the same list of part numbers in the book at the shop i got mine from.Anyway it all turned out ok in the end i got the 783 and it fitted right.The bloke bought me 2 different uni,one internal,one external both 25mm cups but said he also had the 22mm cup out back aswell.