Regearing Advice... What do I need?

[Camar068]

My advice. If your axles are both good shape, bring your truck over here. I’ll literally you swap your 3.42s for the kids 4.10s. For free.
If you paint them black and swap my brakes and hubs (unless yours are nicer lol) I’ll provide the beer too.
Don’t even need to bring tools.
You must have overdrive or you wouldn’t be swapping.

can't beat that.....and it's free. If you don't like it, then go to your shop. Of course, if your close to each other.

 

[Grit dog]

Tempting as that is, I'm not 100% confident in the rear axle overall. The PO had a tendency to haul HEAVY and I have a slight wheel vibration that I've isolated to the right rear, but can't see the cause. I've gone over all the usual suspects and am coming up blank.

So I've decided to have a reputable shop regear the rear diff and go through the whole rear axle from drum to drum so I'm starting with a clean slate. Later I'll do the front diff, it's a 10 bolt corporate.

Bummer dude…
Well good luck with er.

 

[shep151]

Bummer dude…
Well good luck with er.

If the shop says they're in good shape, do you want the 3.42 ring & pinion?

 

[Grit dog]

If the shop says they're in good shape, do you want the 3.42 ring & pinion?

Maybe? Honestly I’d likely not make the swap otherwise. Truck is a Sunday driver and it would be a ways down our list of projects.

Plus, yours is a 78 so presuming it’s a 14ff and Dana front. His is an 86 so 14sf and 10bolt front or whatever it is. Not sure they’re the same.
Appreciate it though.

 

[shep151]

Maybe? Honestly I’d likely not make the swap otherwise. Truck is a Sunday driver and it would be a ways down our list of projects.

Plus, yours is a 78 so presuming it’s a 14ff and Dana front. His is an 86 so 14sf and 10bolt front or whatever it is. Not sure they’re the same.

I'm not sure of the year of either axle. Rear is 14FF, front is corporate 10.

 

[mattsk8]

If you don't have overdrive and do a lot of towing you might hate 4.10 gears on the highway. I had a TH400 trans with 4.10 gears and at about 80 it was screaming, IIRC I was over 3,500 RPMs. That was with 33" tires, if yours are smaller it'll be worse.

I swapped my TH400 to a 700r4 and absolutely love it, now at 80 mph I'm turning about 2k RPMs.