Forum Discussion
APT
Jul 23, 2015Explorer
Terry, I disagree. GM's tow rating differences are due the HD trailing equipment. The tow rating between GM half tons with 3.08 and 3.42 is about 500 pounds, but the HD trailering package (read trans cooler) equipment adds another 2500-3000 pounds.
GM's 6-spd with 3.08 is better than GM's prior 4-spd with 4.10 axle:
Ford's 6-spd with 3.31 is better than its prior 4-spd with 4.56:
I would still recommend the shortest axle ratio offered even with today's 6/8 speed transmissions, but even the economy gears provide adequate performance for towing 7000ish pounds.
Something's not right with that. 2009+ GM half ton SUVs came with 3.08 or 3.42 axles. 3.73 is not offered with the half ton/5.3L, only 3/4 ton with 6.0L. That's also the only way to get 9000+ tow rating, 3/4 ton 6.0L/3.73. Even prior to 2009, the 5.3L available axle ratios were 3.08, 3.42, 3.73 and 4.10. I don't think the 5.3L in SUVs has ever had 9000 pound tow rating. It's low-mid 8000 pound since 2000.
Anyway, an F-150 with 5.0L is mated to 6-spd trans and 3.31, 3.55, or 3.73 gears. All will accelerate better than 3/4 tons from 10 years ago.
GM's 6-spd with 3.08 is better than GM's prior 4-spd with 4.10 axle:
Ford's 6-spd with 3.31 is better than its prior 4-spd with 4.56:
I would still recommend the shortest axle ratio offered even with today's 6/8 speed transmissions, but even the economy gears provide adequate performance for towing 7000ish pounds.
My SIL has a 5.3 Burb. With the 3.73, It can tow 9000lbs. With the 3.08 it came with. It can only tow 5000lbs.
Something's not right with that. 2009+ GM half ton SUVs came with 3.08 or 3.42 axles. 3.73 is not offered with the half ton/5.3L, only 3/4 ton with 6.0L. That's also the only way to get 9000+ tow rating, 3/4 ton 6.0L/3.73. Even prior to 2009, the 5.3L available axle ratios were 3.08, 3.42, 3.73 and 4.10. I don't think the 5.3L in SUVs has ever had 9000 pound tow rating. It's low-mid 8000 pound since 2000.
Anyway, an F-150 with 5.0L is mated to 6-spd trans and 3.31, 3.55, or 3.73 gears. All will accelerate better than 3/4 tons from 10 years ago.
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