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schoolbuilder · 08-10-2015, 09:07 AM

Thanks, guys. It does seem my frame measures the same as a '73. 34" outside-to-outside of frame rails over the axel. So it appears a hitch spec'd for a '73 will fit this particular '71. I'll be pulling my 32' 5th wheel camper that I used to pull with an '08 GMC dually. The trailer exceeds the posted GVW for this '71 truck, but I'm confident that with the tow package equipment I have and conservative driving it will handle it. It has the tranny cooler, what appears to be a 1T rear axel (8 bolt wheels) and a healthy stack of helper springs. I'll report back on how it goes.

08-10-2015, 09:07 AM	#6
schoolbuilder Registered User Join Date: Jul 2015 Location: Dalton, MA Posts: 4	Re: 71 K20 vs. 73 K20 frame dimensions Thanks, guys. It does seem my frame measures the same as a '73. 34" outside-to-outside of frame rails over the axel. So it appears a hitch spec'd for a '73 will fit this particular '71. I'll be pulling my 32' 5th wheel camper that I used to pull with an '08 GMC dually. The trailer exceeds the posted GVW for this '71 truck, but I'm confident that with the tow package equipment I have and conservative driving it will handle it. It has the tranny cooler, what appears to be a 1T rear axel (8 bolt wheels) and a healthy stack of helper springs. I'll report back on how it goes.