Lol absolutely.

 

but still like 500 for both r&p and 400 for both kits, so still 2100 labor?! like 12h for both is like 175/hour

for milage the 3.08 is really nice, going 75 and 1500rpms

 

just takes forever to get to that speed...

 

And if you drive hills then your transmission down shifts at every incline.

 

not that bad, but it will definitly more fun afterwards

exactly!

so appointment tomorrow at the shop

 

That's awesome man. Let us know how you like it.

 

I will, but it will take 2 weeks til the parts arrive in Germany ^^

 

Yeh i imagine it would take a little time.

 

Got here back this week. The shop went with Yukon for ring/pinion because motive pro was on backorder. The master kit is also from Yukon.

I'm taking it slow for the first 500 miles, staying below 60 and 2500rpms - but I can already tell it feels really good, like no more torture. It seems that now she is in the right gear all the time. Really hard to wait until I can floor her

 

Yea there's a divining line for the 5fours. It's very close to 1850 rpms. I thought it was higher for awhile, - after further experience, (stops for petrol and miscellaneous sustenance) and making the same trip highway every day. Depending on the mood, I'll either putz at 65/70 or wait for two or three over medicated fools fly by me at 90/95. I may follow for a bit at 80 until they are out of site. I haven't cared enough about economy to do the actual math for quite awhile, but when I have in the past it was as much as 10 bucks per tank for that craziness and that's only if your not loaded. Loaded, these trucks can just horde the fuel terrible at times lol.

Depends what you use your truck for, but 3.55's for a lot of highway and general duty's is a pretty good choice from Ford for the 150's. Wouldn't go any shorter. Also you have the taller ring gear ( 5four only). Torquey ring gear in comparison to the 8.8's which helps much down low, - stabilizes/maintains cruising speeds on hilly terrain and can run with traffic under normal acceleration from the light loaded.

Bumping the tire size up would just about require a gear change IMO, mandatory if upping 2 sizes. Unless your content with a slug princess everywhere you go lol. They all should of have had blowers in these things. They would last longer...that's right, they would,- in the right hands.