Rear Driveshaft Length

[72Monte]

Hey all, I don’t own a Yukon or Tahoe but I’m building an old Monte Carlo. I’m hoping this group that has and knows these trucks can help out in my driveshaft search!

I’ve found some references suggestions a 2000-2006 Yukon xl 4x4 (and a few others) rear shaft is the size I’m looking for. The complication I’m having is all measurements reference the total length including yoke and appear to be a little over 61”. I’m looking for a 54-1/4”.

I found one on eBay suggesting it’s about 54-1/4” and I’ve identified two potential Three Rivers part numbers 15713680 and 15109397. Does anyone know the u-joint center to center of these two part numbers or the rear center to center of a Yukon xl 4x4?

Thank you for your help in advance!!

 

[Korobs885]

You can get a driveshaft made to any specs at a driveshaft shop. Most people are unaware they exist, but are very common. I’d hit the Google search or if you’re in the SoCal area I can recommended a few.

In the custom car world, when doing mods with different trans/ rear end setups, you often have to get a custom one made because it’s not recommended to try and retrofit one from any other car.

They are relatively cheap, $400-500 the last I checked, and you likely have options such as a lighter weight material, upgraded U-joints, etc. Plus these guys do them all day long and know what they’re doing; they will balance and warranty the shaft also. You might end up spending more money and time trying to find one than you would just getting one made. They will guide you on what measurements they need.

 

[swathdiver]

AAM and Spicer have driveshaft specs.

The published literature for my 2009 GMC Yukon XL 4x4s driveshaft is 53.54" center to center.

So what are you building? A G-Body Monte Carlo?

 

[72Monte]

AAM and Spicer have driveshaft specs.

The published literature for my 2009 GMC Yukon XL 4x4s driveshaft is 53.54" center to center.

So what are you building? A G-Body Monte Carlo?

Thanks! From what I’ve found they changed the lengths in 2007. Would you mind pointing me to the literature? I’ve tried searching for the AAM and Spicer specs but I’ve not had any luck. I’m sure it’s operator error! ‍

It’s a 72 A-body. Driveline is the same as a Chevelle just extended frame in the front and rear. It should be a 54-1/2” with my setup (th400/12-bolt) however I’m 1/4” off and don’t have a good shaft to have cut.

 

[swathdiver]

GM 1 Piece Driveshaft Bill of Materials | American Axle & Manufacturing | Aftermarket OE Parts

GM 1 Piece Driveshaft Bill of Materials

demandaam.com

chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://d3qx1uccksbb2n.cloudfront.net/docs/K350-2-DAG-122017.pdf

What size u-joints does the Monte Carlo use? It's been a long time since I messed with those!

 

[72Monte]

GM 1 Piece Driveshaft Bill of Materials | American Axle & Manufacturing | Aftermarket OE Parts

GM 1 Piece Driveshaft Bill of Materials

demandaam.com

chrome-extension://efaidnbmnnnibpcajpcglclefindmkaj/https://d3qx1uccksbb2n.cloudfront.net/docs/K350-2-DAG-122017.pdf

What size u-joints does the Monte Carlo use? It's been a long time since I messed with those!

Thank you!

The yoke is a 1350 OSR and the rear end is a 1310.

 

[mikeseay]

You can get a driveshaft made to any specs at a driveshaft shop. Most people are unaware they exist, but are very common. I’d hit the Google search or if you’re in the SoCal area I can recommended a few.

In the custom car world, when doing mods with different trans/ rear end setups, you often have to get a custom one made because it’s not recommended to try and retrofit one from any other car.

They are relatively cheap, $400-500 the last I checked, and you likely have options such as a lighter weight material, upgraded U-joints, etc. Plus these guys do them all day long and know what they’re doing; they will balance and warranty the shaft also. You might end up spending more money and time trying to find one than you would just getting one made. They will guide you on what measurements they need.

Any area that has big trucks has driveshaft shops close by, big trucks eat driveshafts.