1999 454 suburban ok to tow in overdrive?
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1999 454 suburban ok to tow in overdrive?
Hey guys,
Just checking from your experiences. I have a 99 3/4 ton 454 Suburban. 4:10 posi rear... I wil be towing my 71 Cuda to the drags. Open trailer (equipment type trailer) Probably 6000-7000 lbs max with car on trailer.
Manual says ok to leave it in overdrive. However I want real world answers to that. I don't want to fry the tranny. Danka.
Just checking from your experiences. I have a 99 3/4 ton 454 Suburban. 4:10 posi rear... I wil be towing my 71 Cuda to the drags. Open trailer (equipment type trailer) Probably 6000-7000 lbs max with car on trailer.
Manual says ok to leave it in overdrive. However I want real world answers to that. I don't want to fry the tranny. Danka.
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Joined: Feb 2010
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From: McKinney, TX
start in overdrive, if it keeps shifting down to go up a small incline or if it cannot keep highway speed then drop it down a gear. I imagine with the 454 and 4:10 rear end you would be good in overdrive.
they key is you don't want it to keep shifting because that generates lots of heat when towing
they key is you don't want it to keep shifting because that generates lots of heat when towing
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THey are very good looking vehicles! I have 1 of the car and one of the motor..but they are on my camera...how can I get the photo of camera onto this page? Jeff
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Last edited by in2pro; May 17, 2011 at 10:58 PM.
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Another 1971 cuda photo--testing my uplaod skills
Another photo..i tried to do 2 on same prior thread but it "failed" on the 2nd photo...
Car needs to be repainted and fixed....i have 4 kids...has various bike dents, scratches, trailer issues, etc...fun car to drag though...does 11.60s with full mufflers and stock elec ign...did some ign upgrades and opened up headers this year...will see what she does....
i race at bir....all chevy's up there!
Car needs to be repainted and fixed....i have 4 kids...has various bike dents, scratches, trailer issues, etc...fun car to drag though...does 11.60s with full mufflers and stock elec ign...did some ign upgrades and opened up headers this year...will see what she does....
i race at bir....all chevy's up there!
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Joined: Mar 2011
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From: Hicksville Ks
do you have a trans temp guage?
it's all gonna depend on the weight and terrain... I would leave it in overdrive until you notice it hunting gears, and then drop it into 3rd... you should be good to go there...
least thats what I'm doing with my suburban (5.3 L60) since my tow/haul switch doesn't seem to work...
:chug:
it's all gonna depend on the weight and terrain... I would leave it in overdrive until you notice it hunting gears, and then drop it into 3rd... you should be good to go there...
least thats what I'm doing with my suburban (5.3 L60) since my tow/haul switch doesn't seem to work...
:chug:
Very nice!