Need advice on Gear upgrades
#21
Guys, the info you've provided has solidified my decision! Looks like based on my engine and current setup that 4.56 gears front and rear is the final deciding factor. Now time to look at where I can order Yukon gears and see what shops will install. Thank you all for the much needed help!
With only 53k should I replace the internals as well or no need?
With only 53k should I replace the internals as well or no need?
i'd go by the recommendation of the shop... that's light on miles but at the same time bearings and seals are cheap compared to the cost of labor to replace them
#22
4.56 with 5.4L
I recently upgraded to 4.56 gears with my 35" tires
HUGE difference in power, makes the truck fun to drive again and way better on the highway and hills (especially the "highway thru hell" the Coquihalla highway which I drive regularly
HUGE difference in power, makes the truck fun to drive again and way better on the highway and hills (especially the "highway thru hell" the Coquihalla highway which I drive regularly
The following 2 users liked this post by Basscanada:
0700 (08-01-2014),
Ballin STX (05-05-2014)
#23
Senior Member
Thread Starter
What did you pay?? Good input btw
#24
It wasn't cheap, I had quotes from 2750 to 4000
Ended up paying closer to the later but they did a good job and warrantied the work for a year. Apparently some shops have issues shimming the rear to elimate excess gear noise, mine is pretty quiet. Overall despite the cost I HIGHLY recommend the gear swap if you can afford it. Don't think I would go up to 4.88 (only because of the lower fuel economy) as I do notice my fuel economy with the 4.56 and the 35s is bad enough...
Ended up paying closer to the later but they did a good job and warrantied the work for a year. Apparently some shops have issues shimming the rear to elimate excess gear noise, mine is pretty quiet. Overall despite the cost I HIGHLY recommend the gear swap if you can afford it. Don't think I would go up to 4.88 (only because of the lower fuel economy) as I do notice my fuel economy with the 4.56 and the 35s is bad enough...
#25
Senior Member
Thread Starter
Are you saying your mpg went down after gears? I've heard 35's and 4.56 gears go hand in hand and it's almost like your truck feels like it's running stock tires. I'm just trying to avoid less strain and wear on engine and tranny but also try and get a few mpg'a back.
#26
Are you saying your mpg went down after gears? I've heard 35's and 4.56 gears go hand in hand and it's almost like your truck feels like it's running stock tires. I'm just trying to avoid less strain and wear on engine and tranny but also try and get a few mpg'a back.
Don't forget the added energy required to overcome the significant increases in rolling resistance, static mass and especially the added rotational inertia from larger tires (where the mass is concentrated further out from the axis).
Gearing changes do not alter these factors. There are no free rides here.
More energy required = more fuel used.
MGD
#27
It wasn't cheap, I had quotes from 2750 to 4000
Ended up paying closer to the later but they did a good job and warrantied the work for a year. Apparently some shops have issues shimming the rear to elimate excess gear noise, mine is pretty quiet. Overall despite the cost I HIGHLY recommend the gear swap if you can afford it. Don't think I would go up to 4.88 (only because of the lower fuel economy) as I do notice my fuel economy with the 4.56 and the 35s is bad enough...
Ended up paying closer to the later but they did a good job and warrantied the work for a year. Apparently some shops have issues shimming the rear to elimate excess gear noise, mine is pretty quiet. Overall despite the cost I HIGHLY recommend the gear swap if you can afford it. Don't think I would go up to 4.88 (only because of the lower fuel economy) as I do notice my fuel economy with the 4.56 and the 35s is bad enough...
#28
Transmission work in Houston is far cheaper than most of the country though. I can get my transmission completely rebuilt with heavier duty materials, parts, and a shift kit for about 750.
Sounds like Canada is a very pricey place to live in regard to vehicle maintenance, modification, and labor.
Last edited by Mdgonzo101; 05-05-2014 at 11:50 AM.
#29
It really depends on where you're from. Rates in Houston are comparable to most areas of the country for gears and labor. 2400 was what I paid to a reputable and well known Offroad shop for the gears (front and rear), master install kits, Detroit Truetrac, and labor.
Transmission work in Houston is far cheaper than most of the country though. I can get my transmission completely rebuilt with heavier duty materials, parts, and a shift kit for about 750.
Sounds like Canada is a very pricey place to live in regard to vehicle maintenance, modification, and labor.
Transmission work in Houston is far cheaper than most of the country though. I can get my transmission completely rebuilt with heavier duty materials, parts, and a shift kit for about 750.
Sounds like Canada is a very pricey place to live in regard to vehicle maintenance, modification, and labor.
I think 2400 with truetracs (both front and rear? because that's like 1k in just those) and a master install kit (I think most come with new seals and bearings ??) is a pretty good deal.
#30
Are you saying your mpg went down after gears? I've heard 35's and 4.56 gears go hand in hand and it's almost like your truck feels like it's running stock tires. I'm just trying to avoid less strain and wear on engine and tranny but also try and get a few mpg'a back.