I'm going to replace the u-joints on my 245 while the drive shaft is out
for centre bearing replacement. The parts house lists two different
ones: 3" and 3-1/8"
Any easy way to decide which ones to order, short of taking the car out
of service to dismantle it?
Thanks...
cognite tute - 29 Nov 2007 04:06 GMT
> I'm going to replace the u-joints on my 245 while the drive shaft is out
> for centre bearing replacement. The parts house lists two different
[quoted text clipped - 4 lines]
>
> Thanks...
buy both, take the remaining one back.
j.
FLobresco - 01 Dec 2007 00:05 GMT
No, get the correct one. Parts houses are not WalMart you know.
>> I'm going to replace the u-joints on my 245 while the drive shaft is out
>> for centre bearing replacement. The parts house lists two different
[quoted text clipped - 8 lines]
>
> j.
James Sweet - 01 Dec 2007 03:17 GMT
> No, get the correct one. Parts houses are not WalMart you know.
Years ago when I bought some brake pads, the guy at the parts shop told me
to buy both and return the one I didn't need. It's not really any trouble
for them if you don't damage the part, they just put it back on the shelf.
FLobresco - 01 Dec 2007 00:03 GMT
Check the diameter of the driveshaft.
The 3-1/8inch is for 50.8inch diameter driveshafts.
The 3inch is for 44.5inch diameter driveshafts.
> I'm going to replace the u-joints on my 245 while the drive shaft is out
> for centre bearing replacement. The parts house lists two different
[quoted text clipped - 4 lines]
>
> Thanks...
Gary Heston - 01 Dec 2007 01:28 GMT
>Check the diameter of the driveshaft.
>The 3-1/8inch is for 50.8inch diameter driveshafts.
>The 3inch is for 44.5inch diameter driveshafts.
[ ... ]
Ummm... those are some extremely large drive shafts.
Perhaps you meant 50.8mm and 44.5mm?
Gary

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Gary Heston gheston@hiwaay.net http://www.thebreastcancersite.com/
Yoko Onos' former driver tried to extort $2M from her, threating to
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FLobresco - 05 Dec 2007 04:19 GMT
Yes, mm is what I meant.
Thanks Gary
>>Check the diameter of the driveshaft.
>>The 3-1/8inch is for 50.8inch diameter driveshafts.
[quoted text clipped - 6 lines]
>
> Gary
Mr. V - 05 Dec 2007 15:21 GMT
Per IPD catalog:
Measure the yoke width.
If it is 3 1/4", use 3" U-joint;
If it is 3 1/2", use 3 3/16" U joint.
Make sure you index the two shafts together.