Low range in 2WD???
Submitted: Thursday, Aug 19, 2004 at 12:09
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JohnWD
I have a 100 series cruiser late model standard manual,free wheeling hubs and no diff locks. Is it possible to engage 4WD low with front hubs disengaged (to minimise wind up on a hard surface) for the purpose say, of positioning a caravan up an incline in order to save slipping clutch in 2WD ? If not, is there any after market product that would allow it??
Thanks for any help........
Reply By: flappan - Thursday, Aug 19, 2004 at 12:14
Thursday, Aug 19, 2004 at 12:14
Simple answer . . .
Yes.
I know of quite a few people do it for that reason.
AnswerID:
73236
Reply By: Member - Captain (WA) - Thursday, Aug 19, 2004 at 12:29
Thursday, Aug 19, 2004 at 12:29
Yep, did it for years with my std 80 series when reversing the van in at home. Never had a problem (even though I did have a diff lock) and its the only way to go.
Cheers
Captain
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73238
Reply By: Davoe - Thursday, Aug 19, 2004 at 12:41
Thursday, Aug 19, 2004 at 12:41
not adding much but yes even though the hand book specifically says not to engage 4wd without the hubs in it certainly wont wreck things
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Reply By: JohnWD - Thursday, Aug 19, 2004 at 13:00
Thursday, Aug 19, 2004 at 13:00
Thanks for all your help. 2
wheels driving in low range would certainly make things easier at times!!
Regards
JohnWD
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73243
Reply By: Utemad - Thursday, Aug 19, 2004 at 14:47
Thursday, Aug 19, 2004 at 14:47
My Rodeo Manual says:
Says not to drive in 4wd with hubs unlocked for more than 100m or above 5km/h
Do not operate on hard surfaces for a distance above 1km in 4wd with hubs locked
Do not negotiate tight turns in 4wd with hubs locked on hard surfaces.
I use low range for manouvering trailers too.
Utemad
AnswerID:
73255
Reply By: Peter 2 - Thursday, Aug 19, 2004 at 19:19
Thursday, Aug 19, 2004 at 19:19
I've done it too for years, just remember though to be gentle with the accelerator and clutch operation, you are effectively doubling the horsepower of the motor in low range and putting it through the rear diff only, very easy to break something. I actually sheared the studs on the rear hub (the ones attaching the axle) on a landcruiser reversing up a steep driveway with a trailer load of firewood.
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73301
Follow Up By: Flash - Friday, Aug 20, 2004 at 16:47
Friday, Aug 20, 2004 at 16:47
Torque.... not horsepower.
Yes, it's a very good idea to use low range to save your clutch, with the front hubs disengaged.
Have always done it when backing caravan, boat etc.
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333568
Reply By: Peter 2 - Friday, Aug 20, 2004 at 17:13
Friday, Aug 20, 2004 at 17:13
True, but you missed the point that I was trying to make and that was to be very careful of clutch and accelerator use or you may break something as you effectively double the engine output and as you are driving only two
wheels.
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73427
Follow Up By: Davoe - Sunday, Aug 22, 2004 at 15:37
Sunday, Aug 22, 2004 at 15:37
I have broken the same studs you mentioned twice fully and a single stud here and there anothe 3 times until the mechanich I was taking it back 2 got off his a$# and found a bent axle (nothing to do with low 2wd operation). as you mentioned about torque gather the 6.2 conversions are also quite hard on the studs
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Follow Up By: Peter 2 - Sunday, Aug 22, 2004 at 16:00
Sunday, Aug 22, 2004 at 16:00
I only ever broke the studs once, it was definitely due to getting off the clutch too hard in low rear wheel drive only with a big load on.
I do know of quite a few people who have broken the studs frequently, more prevalent with bigger tyres, 33" plus and/or detroit in the rear, something to do with shock load I suspect.
Don't have that problem on the Humvee, no studs in sight.
A friend with a 6.5 in an 80 series has never had any probs either.
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