collapse

Advertisement


Author Topic: GM rear end and front differential compatibility. Who’s smarter than me  (Read 8124 times)

Offline Happy Gilmore

  • Business Sponsor
  • Trade Count: (+1)
  • Old Salt
  • *****
  • Join Date: Jul 2008
  • Posts: 5233
  • Location: Ronan, MT
I bet your butt dyno won't notice the difference between 3.73 and 4.10 gears.

Lot of money for a difference that will be hard to notice.

I can tell you 100% difference between my wife's 3500 dually and my 2500 srw. They are both 2024 and drive completely different.
"Far better it is to dare mighty things, to win glorious triumphs, even though checked by failure, than to take rank with those poor spirits who neither enjoy much nor suffer much, because they live in the grey twilight that knows not victory nor defeat."
Theodore Roosevelt 1899

Offline Magnum_Willys

  • Political & Covid-19 Topics
  • Trade Count: (+1)
  • Old Salt
  • ******
  • Join Date: Nov 2009
  • Posts: 5634
You can do it yourself but figure 3 days if your first time.  Maybe 4 with IFS.   I’ve done so many now its a breeze with setup bearings.  Even put dana 70 gears in my front d60.  Goin strong after 10 years still.  Thanks Jana!

Offline blackpowderhunter

  • Trade Count: (+5)
  • Sourdough
  • *****
  • Join Date: Apr 2014
  • Posts: 1171
  • Location: Renton
I bet your butt dyno won't notice the difference between 3.73 and 4.10 gears.

Lot of money for a difference that will be hard to notice.
this truck pretty much only gets used for towing the boat or hauling stuff, so id bet id notice the difference for towing purposes.
it's not about getting faster, its about moving the torque curve a little bit
also, before someone says it...
i'm not buying a diesel

Offline blackpowderhunter

  • Trade Count: (+5)
  • Sourdough
  • *****
  • Join Date: Apr 2014
  • Posts: 1171
  • Location: Renton
You can do it yourself but figure 3 days if your first time.  Maybe 4 with IFS.   I’ve done so many now its a breeze with setup bearings.  Even put dana 70 gears in my front d60.  Goin strong after 10 years still.  Thanks Jana!
sounds like you want a little side job  :chuckle:

Offline ballpark

  • Salty
  • Non-Hunting Topics
  • Trade Count: (+2)
  • Longhunter
  • *****
  • Join Date: Apr 2014
  • Posts: 626
  • Location: Not at sea

https://rearsngears.com/

In Port Orchard, John's an honest dude.  Purchase the gears and have him do it.  He has fixed and upgraded a couple trucks for me.

Offline James

  • Trade Count: (0)
  • Scout
  • ****
  • Join Date: Oct 2009
  • Posts: 428
  • Location: Washington
I bet your butt dyno won't notice the difference between 3.73 and 4.10 gears.

Lot of money for a difference that will be hard to notice.
this truck pretty much only gets used for towing the boat or hauling stuff, so id bet id notice the difference for towing purposes.
it's not about getting faster, its about moving the torque curve a little bit
also, before someone says it...
i'm not buying a diesel

I have regeared a lot of rigs over the years, in college swapped a 1990 bronco from 3.55's to 4.10's and it was almost imperceivable change. Changing from 2.73 to 3.55's in my mustang on the other hand...
You will never shoot a camp bull by spending all your time hunting in the woods.

Offline Happy Gilmore

  • Business Sponsor
  • Trade Count: (+1)
  • Old Salt
  • *****
  • Join Date: Jul 2008
  • Posts: 5233
  • Location: Ronan, MT
I bet your butt dyno won't notice the difference between 3.73 and 4.10 gears.

Lot of money for a difference that will be hard to notice.
this truck pretty much only gets used for towing the boat or hauling stuff, so id bet id notice the difference for towing purposes.
it's not about getting faster, its about moving the torque curve a little bit
also, before someone says it...
i'm not buying a diesel

I have regeared a lot of rigs over the years, in college swapped a 1990 bronco from 3.55's to 4.10's and it was almost imperceivable change. Changing from 2.73 to 3.55's in my mustang on the other hand...

Was that after or before you went from 32" to 44" swampers lol
"Far better it is to dare mighty things, to win glorious triumphs, even though checked by failure, than to take rank with those poor spirits who neither enjoy much nor suffer much, because they live in the grey twilight that knows not victory nor defeat."
Theodore Roosevelt 1899

Offline James

  • Trade Count: (0)
  • Scout
  • ****
  • Join Date: Oct 2009
  • Posts: 428
  • Location: Washington
I bet your butt dyno won't notice the difference between 3.73 and 4.10 gears.

Lot of money for a difference that will be hard to notice.
this truck pretty much only gets used for towing the boat or hauling stuff, so id bet id notice the difference for towing purposes.
it's not about getting faster, its about moving the torque curve a little bit
also, before someone says it...
i'm not buying a diesel

I have regeared a lot of rigs over the years, in college swapped a 1990 bronco from 3.55's to 4.10's and it was almost imperceivable change. Changing from 2.73 to 3.55's in my mustang on the other hand...

Was that after or before you went from 32" to 44" swampers lol

haha, it had cheap 33's, I thought going to 4.10's would get it back to the was with stock 30's.  Prob should have gone with 4.56's or 4.88's.
You will never shoot a camp bull by spending all your time hunting in the woods.

Offline Happy Gilmore

  • Business Sponsor
  • Trade Count: (+1)
  • Old Salt
  • *****
  • Join Date: Jul 2008
  • Posts: 5233
  • Location: Ronan, MT
Call Randy's Ring and Pinion. They'll tell you exactly what you'll get. If you're headed down to king of hammers maybe get down to 5.29s.. just left there today. Be in westport tomorrow.
"Far better it is to dare mighty things, to win glorious triumphs, even though checked by failure, than to take rank with those poor spirits who neither enjoy much nor suffer much, because they live in the grey twilight that knows not victory nor defeat."
Theodore Roosevelt 1899

 


* Advertisement

* Recent Topics

Youth turkey season 2026 by Henrydog
[Today at 06:50:21 AM]


Please Report Problems & Bugs Here by Liroy
[Today at 03:58:58 AM]


September Mule Deer in the High Country by basedacid
[Yesterday at 09:35:22 PM]


Now we wait(Montana) by Magnum_Willys
[Yesterday at 08:51:55 PM]


Small plastic boats? by Happy Gilmore
[Yesterday at 07:10:47 PM]


suppressor for a 7mm-08 by dreadi
[Yesterday at 06:54:20 PM]


MA10 Blackmouth anyone? by jackelope
[Yesterday at 06:48:28 PM]


Hoof rot by trophyhunt
[Yesterday at 06:23:05 PM]


ITA Clean-Up Fur Sale by Trapper John
[Yesterday at 01:46:08 PM]


Breaking news: Lorna Smith and WWF sue WDFW Director and Deputy Director by Smokeploe
[Yesterday at 01:06:37 PM]


Spring bear 2026 by calahanhuntingco
[Yesterday at 12:57:38 PM]


Turkey Fan/beard Plaques by fire*guy
[Yesterday at 11:45:41 AM]


12th Annual - 2026 YOUTH TURKEY HUNT CONTEST (enter by Mar 15) by hunterednate
[Yesterday at 11:01:48 AM]


That first elk encounter… by Mtnwalker
[Yesterday at 10:14:12 AM]


.45-70 Loads and Twist Rate by dreadi
[Yesterday at 09:40:13 AM]


Hunter saves deer's life -Cool vid by pianoman9701
[Yesterday at 08:57:39 AM]

SimplePortal 2.3.7 © 2008-2026, SimplePortal