86 Chevy K30 Cummins Swap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

hartbraker · 03-13-2012, 12:30 PM

Well, my only argument about the 29 spline being a weak link is that the dodge currently has a 29 spline and why fix what isn't broke? If it does turn out to be quite difficult and just as expensive to find a working round pattern dodge np205, then I agree just build it once, and get the 32 spline setup.

HOWEVER, 72longhorn while I hear you on the axle swap... I'd have to rebuild the entire gear setup as the dodge dana 60 has 353's(I believe) and my build will have 410 gears. Not to mention the added time and fabbing required to get rid of the coil overs and revert to the leaf springs... TOO MUCH for my taste.

72longhornTX · 03-13-2012, 12:37 PM

Quote:

Originally Posted by hartbraker

Well, my only argument about the 29 spline being a weak link is that the dodge currently has a 29 spline and why fix what isn't broke? If it does turn out to be quite difficult and just as expensive to find a working round pattern dodge np205, then I agree just build it once, and get the 32 spline setup.

HOWEVER, 72longhorn while I hear you on the axle swap... I'd have to rebuild the entire gear setup as the dodge dana 60 has 353's(I believe) and my build will have 410 gears. Not to mention the added time and fabbing required to get rid of the coil overs and revert to the leaf springs... TOO MUCH for my taste.

True on the 29 spline issue. The Allison trans uses a 29 spline as well behind the Duramaxs so it is plenty strong.

I hear you on the whole coil to leaf conversion on the axles.
Now I will say my knowledge on trucks has not extended down to the axles so would it not be possible to just take your ring gear and pinion gear out of the GM Dana 60 and bolt them into the Dodge Dana 60?

hartbraker · 03-13-2012, 01:36 PM

That I do not know. I'd have to say that would be a useful piece of information... but if I were going to do anything, I'd want to try to use the dana 80 from the dodge in the rear and take out my current corporate 14 bolt. But again... the who rebuilding the running gear is expensive and might have to wait til down the road when I have more money to light on fire.

03-13-2012, 12:30 PM	#1
hartbraker Registered User Join Date: Apr 2011 Location: Centerburg, Ohio Posts: 172	Re: 86 Chevy K30 Cummins Swap Well, my only argument about the 29 spline being a weak link is that the dodge currently has a 29 spline and why fix what isn't broke? If it does turn out to be quite difficult and just as expensive to find a working round pattern dodge np205, then I agree just build it once, and get the 32 spline setup. HOWEVER, 72longhorn while I hear you on the axle swap... I'd have to rebuild the entire gear setup as the dodge dana 60 has 353's(I believe) and my build will have 410 gears. Not to mention the added time and fabbing required to get rid of the coil overs and revert to the leaf springs... TOO MUCH for my taste. __________________ 1986 Chevy Silverado k30: factory air, tilt wheel, 454cu 7.4L, Turbo 400, NP205, Corporate 14 bolt, Dana 60 front, 4.10 gears, SRW, long bed, standard cab... MY TRUE LOVE

03-13-2012, 01:36 PM	#3
hartbraker Registered User Join Date: Apr 2011 Location: Centerburg, Ohio Posts: 172	Re: 86 Chevy K30 Cummins Swap That I do not know. I'd have to say that would be a useful piece of information... but if I were going to do anything, I'd want to try to use the dana 80 from the dodge in the rear and take out my current corporate 14 bolt. But again... the who rebuilding the running gear is expensive and might have to wait til down the road when I have more money to light on fire. __________________ 1986 Chevy Silverado k30: factory air, tilt wheel, 454cu 7.4L, Turbo 400, NP205, Corporate 14 bolt, Dana 60 front, 4.10 gears, SRW, long bed, standard cab... MY TRUE LOVE



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.