Over drive or Drive and 2 zuks behind Suburban - Pirate4x4.Com : 4x4 and Off-Road Forum

flexlarson · 07-09-2002, 03:24 AM

Ok heres the Qs.
I was told that I shouldnt tow in overdrive with my 94 3/4 ton 4x4 suburban . Is this recomended or doesnt it matter ?

When pulling in drive the temp goes up slightly and you can hear the engine rapping up at 75 mph .

I generally pull a 16 foot car trailer and a Zuk around.

One other Qs .
Do you think the Suburban with a throttle body injected 5.7 litre 350 would be capable of pulling two samuris on a 20'' trailer without damaging anything?

One sammi runs 33s and all yota running gear and the other is pretty much stock.

Bones · 07-09-2002, 06:32 AM

Not the best comparison, but my dad had a couple tranny problems with a half ton from pulling boats in OD. The sencond tranny shop told him to NOT tow in OD and it's still going strong after at least 10 years since the last rebuild. Granted the sencond rebuild could have been done by a more compitent mechanic as well?

85 rocrnr · 07-09-2002, 07:41 AM

i would tow two rigs with that set up but that is just me

Tusker · 07-09-2002, 12:24 PM

Two Sami's on a 20ft trailer ought to be right at 7,000 lbs. I have towed a little over 10,000 without a problem in my f-250 psd. I only go into O.D. when the ground is flat and I am really moving out. I watch the tranny temp and pyrometer (not stock equipment on a Suburban!) and if they climb much, I kick her out of O.D. I have 140,000 on my auto tranny, and she is still

flexlarson · 07-09-2002, 05:28 PM

any recomendations for a tranny temp guage?
Whats a piro Whatever you said?

Thanks for the info. I guess Ill use OD when its flat and Im haulin A$$.

mike · 07-09-2002, 05:34 PM

Quote:

Originally posted by Tusker
I only go into O.D. when the ground is flat and I am really moving out. I watch the tranny temp and pyrometer (not stock equipment on a Suburban!) and if they climb much, I kick her out of O.D. I have 140,000 on my auto tranny, and she is still

Likewise, cept he dont need a pyrometer .. hard to watch the exhaust gas temps

I voted for drive, but only cause there wasnt an OD in flat ground option.

RE:Todd · 07-09-2002, 05:58 PM

I tow in OD all the time, except when it starts kicking down in the hills. I'm flat towing a 4Runner (probably 4K) with a C3500 dually, with 454.

Tusker · 07-09-2002, 09:39 PM

Quote:

Originally posted by flexlarson
any recomendations for a tranny temp guage?
Whats a piro Whatever you said?

I got my tranny temperature sending unit and gauge from Diesel Injection Service (don't have their website address handy). They have a lot of non-diesel stuff. A pyrometer is a probe placed in the exhaust stream of a diesel to measure exhaust temperatures. It is necessary because your aluminum turbo will melt at around 1,200 degrees, so you gotta know when to take your foot out of it.

BTW, I also got two extra large tranny coolers from the same place. At $55 or so each, they are cheap insurance. Going up Ice House Road with a heavy load on a hot day can ruin a tranny. My buddy was flat towing a Samurai (and nothing else) up Ice House Rd in OD last month and boiled out 8 quarts of fluid and was DOA. The knucklehead he bought it from took out the stock tranny cooler to put in an intercooler. I had my 11 ft Lance camper, car trailer, and rig and did just fine @180 degrees max temp. His tranny was probably WELL over 300 degrees

View Poll Results: Tow in Overdrive or Not
I tow in overdrive	6	54.55%
Only tow in drive	4	36.36%
I dont know what I do im usually to tired or confused	1	9.09%
Voters: 11. You may not vote on this poll

07-09-2002, 03:24 AM	#1 (permalink)
flexlarson Registered User Join Date: Mar 2001 Member # 3932 Location: Black Hills , South Dakota Posts: 794	Over drive or Drive and 2 zuks behind Suburban Ok heres the Qs. I was told that I shouldnt tow in overdrive with my 94 3/4 ton 4x4 suburban . Is this recomended or doesnt it matter ? When pulling in drive the temp goes up slightly and you can hear the engine rapping up at 75 mph . I generally pull a 16 foot car trailer and a Zuk around. One other Qs . Do you think the Suburban with a throttle body injected 5.7 litre 350 would be capable of pulling two samuris on a 20'' trailer without damaging anything? One sammi runs 33s and all yota running gear and the other is pretty much stock. __________________ I like my Zuk just like My Women, light cheap and top heavy . ZUK with 22re yota guts and yota axles 4.10 gears,Dual Cases with 4.71 gears ,locked front welded rear,Exo cage,seats , 37x12.5 boggers on beadlocks [url]www.midwestcrawler.com[/url] [url]www.rollover.at/midwestzuki[/url]

07-09-2002, 06:32 AM	#2 (permalink)
Bones Pirate4x4 Addict! Join Date: Jan 2001 Member # 3007 Location: Marion, Ia Posts: 9,437	Not the best comparison, but my dad had a couple tranny problems with a half ton from pulling boats in OD. The sencond tranny shop told him to NOT tow in OD and it's still going strong after at least 10 years since the last rebuild. Granted the sencond rebuild could have been done by a more compitent mechanic as well? __________________ Today is the tomorrow you worried about yesterday

07-09-2002, 07:41 AM	#3 (permalink)
85 rocrnr Registered User Join Date: Mar 2001 Member # 3630 Location: Santa Rosa Ca Posts: 1,148	i would tow two rigs with that set up but that is just me __________________ As a freind said..."Just pin it and deal with the rest as it comes."

07-09-2002, 12:24 PM	#4 (permalink)
Tusker Registered User Join Date: Jan 2001 Member # 2752 Location: Fairfield, CA Posts: 2,043	Two Sami's on a 20ft trailer ought to be right at 7,000 lbs. I have towed a little over 10,000 without a problem in my f-250 psd. I only go into O.D. when the ground is flat and I am really moving out. I watch the tranny temp and pyrometer (not stock equipment on a Suburban!) and if they climb much, I kick her out of O.D. I have 140,000 on my auto tranny, and she is still __________________ 86 Samurai w/gun rack, 92" WB, VW 1.9 TD, Toyota 5-speed and dual cases with 4.7 gearset, Toyota axles with Longfields, 5.29's, ARB's f&r, YJ's, 35's, FJ-60 power steering, high steer, ............. <>< <>< <>< Hey, if this rig is for wheelin', what are all these animal parts doin' in here?

07-09-2002, 05:28 PM	#5 (permalink)
flexlarson Registered User Join Date: Mar 2001 Member # 3932 Location: Black Hills , South Dakota Posts: 794	any recomendations for a tranny temp guage? Whats a piro Whatever you said? Thanks for the info. I guess Ill use OD when its flat and Im haulin A$$. __________________ I like my Zuk just like My Women, light cheap and top heavy . ZUK with 22re yota guts and yota axles 4.10 gears,Dual Cases with 4.71 gears ,locked front welded rear,Exo cage,seats , 37x12.5 boggers on beadlocks [url]www.midwestcrawler.com[/url] [url]www.rollover.at/midwestzuki[/url]

07-09-2002, 05:58 PM	#7 (permalink)
RE:Todd Registered User Join Date: Mar 2000 Member # 422 Location: Roswell NM Posts: 6,374	I tow in OD all the time, except when it starts kicking down in the hills. I'm flat towing a 4Runner (probably 4K) with a C3500 dually, with 454. __________________ Todd Steele TINBENDERS Formula Toy #006; Thanks to Deaver Spring, High Angle Driveline, Longfields, Rock Buggy Supply, PRP Seats, Marlin Crawler, Coast Motor Supply and RockStomper. [url=http://www.tinbenders.org]TinBenders.org[/url]

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