Vibration- Gu Patrol SWB

Submitted: Monday, Jun 01, 2009 at 21:36
ThreadID: 69430 Views:3467 Replies:4 FollowUps:4
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Hi, My son-in-law has just fitted a 2 inch lift kit to 1988 GU SWB. He bought it in the Trading Post. Low K's but a bit of use offroad it said. He fitted the springs and shocks OK but on the test run he has got a bad vibration in the rear and gearbox area at around 40 kph and 95 kph. Wasn't there before. I am thinking it could be the tailshaft, a stuffed uni? Any comment would be apreciated'
Geoff
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Reply By: donk - Monday, Jun 01, 2009 at 21:45

Monday, Jun 01, 2009 at 21:45
Being a SWB GU (is it a private import) is the rear tailshaft angle to steep with the lift installed

On some vehicle the gearbox/transfer needs to be lowered with spacers when a lift is fitted to rectify this & on a SWB this problem is amplified due to the short tailshaft length

Regards Don
AnswerID: 368042

Follow Up By: Roach"ee" - Monday, Jun 01, 2009 at 21:53

Monday, Jun 01, 2009 at 21:53
1988.............. it's actually a GQ not a GU; and we did get 'em here in oz.... plenty still around.

Roachie
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FollowupID: 635595

Follow Up By: Oldsquizzy (Kununurra) - Monday, Jun 01, 2009 at 21:56

Monday, Jun 01, 2009 at 21:56
Replace rear tailshaft uni's
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FollowupID: 635598

Follow Up By: donk - Monday, Jun 01, 2009 at 22:31

Monday, Jun 01, 2009 at 22:31
Roachie

I was a bit slow & didn't register the year as being 1988 instead of 1998

I am almost sure from memory that SWB GQ's needed to have the transmission dropped when a suspension lift was installed

Regards Don
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FollowupID: 635609

Follow Up By: Member - Geoff P (VIC) - Tuesday, Jun 02, 2009 at 20:50

Tuesday, Jun 02, 2009 at 20:50
Hi Guys,
Thanks for your replys. Yes, my mistake, it is a GQ shortie. I must have been asleep in front of the computer! We made some calls today and can get transmittion packers from ARB. Oldsquizzy, we will certainly replace the uni's they are the original ones so they would be a bit tired by now. The car was 1 y o when I bought it and it has served me well over the years. My son-in-law has inherited it ( I've got a '02 GU now) and is doing all the things to it that I didn't do.
Geoff
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FollowupID: 635722

Reply By: viz - Tuesday, Jun 02, 2009 at 20:50

Tuesday, Jun 02, 2009 at 20:50
Ring Ted Metropolitan Drive Shafts (02) 9637 7933. It will most likely be uni joints going past their limits and probably stuffed as well. Some posts talk about lowering the tranny etc - might well be the case; as an alternative talk to Ted about double cardan uni joints, or ball type uni joints. He is blunt and to the point 35 years experience and worth listening to

viz
AnswerID: 368166

Reply By: Member - Geoff P (VIC) - Wednesday, Jun 03, 2009 at 21:35

Wednesday, Jun 03, 2009 at 21:35
Thanks vis,
There is more than one way to skin a cat from the sound of it. I will get him to ring Ted. Much appreciated.
Geoff
AnswerID: 368311

Reply By: Member - Mudduck (NSW) - Friday, Jun 05, 2009 at 22:19

Friday, Jun 05, 2009 at 22:19
Quite often with shorties you need to use a double cardan joint to help the drive shaft angles
Cheers Steve VK2UD
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