Towing with 4.88s and 35s

[mstrpoz]

So I bought my first camper, weighing in at 4,000lb dry.

Today I took my buddies camper on a practice haul just to get a feel for what I am getting into next weekend. His unit is nearly identical weight wise and was a good way to get my feet wet.

I currently have a stock Sport S on 35s, I had low expectations going into Today but the truck did great on the stock gears. Easily cruised at 55-65 mphin 4th and 5th gear. It was revving pretty high, but she did the job.

I did put a deposit to upgrade to 4.88s earlier in the week, which should happen in the next month. My question is what should I expect different from the stock setup towing woae? Being the truck outperformed my original expectation with stock gears, I am curious what change I'll see.

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[Blade1668]

As a wild guess sligtly better MPG's possible (likely) and at least holding in a few higher gears in transmission. I'm not in quite same situation 4:10 gears and 33s but I definitely notice a drop in mileage when towing and running in lower transmission gears. Higher oil temperature and drops down to 6 and 5 gear going up hills.
The 4:88 gears should help keep your JT closer to stock powerband with the larger tires. It might give you a few extra miles per gallon back overall.

 

[mstrpoz]

As a wild guess sligtly better MPG's possible (likely) and at least holding in a few higher gears in transmission. I'm not in quite same situation 4:10 gears and 33s but I definitely notice a drop in mileage when towing and running in lower transmission gears. Higher oil temperature and drops down to 6 and 5 gear going up hills.
The 4:88 gears should help keep your JT closer to stock powerband with the larger tires. It might give you a few extra miles per gallon back overall.

Thanks, this is what I was thinking power wise. I was getting 10.5 mpg, we rode around for about 40 miles anywhere from 30mph to 65mph putting it through the paces. I'd be thrilled to see that inch up.

 

[BennieD]

How did the 4.88 gears work out. Thinking of changing as well

 

[mstrpoz]

How did the 4.88 gears work out. Thinking of changing as well

Huge improvement with the 4.88s. I do intend to go with 37s when the 35s are worn out and am confident it will still be good to go.

 

[BennieD]

Thanks

 

[RasTheo]

Huge improvement with the 4.88s. I do intend to go with 37s when the 35s are worn out and am confident it will still be good to go.

I am running 37s on 4:88 and drives nicely and shifts like it did stock

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