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3QTRTONS · 08-29-2019, 04:52 PM

Well, been digging around and then some. Axle ratio is limited to either 6.13 or 7.17 - ONLY. Very specific setup... that redlines me at 55mph with the Cummins @1.1 (not good news)
I'm removing the 292 and swapping it into my '80 K20 due to losing a hose and overheating.
Maybe I should just swap in a 366 I have (41K on the dump truck motor), at least be able to pull hard and not blow up a big $ diesel.
Opinions/recommendations/guidance still welcome!

08-29-2019, 04:52 PM	#6
3QTRTONS Registered User Join Date: Mar 2010 Location: Warren, ME. Posts: 233	Re: '69 ES5500 4wd build ("Bob") Well, been digging around and then some. Axle ratio is limited to either 6.13 or 7.17 - ONLY. Very specific setup... that redlines me at 55mph with the Cummins @1.1 (not good news) I'm removing the 292 and swapping it into my '80 K20 due to losing a hose and overheating. Maybe I should just swap in a 366 I have (41K on the dump truck motor), at least be able to pull hard and not blow up a big $ diesel. Opinions/recommendations/guidance still welcome! __________________ 1994 C1500 rclb 1988 C1500 rclb 1969 ES5500 B E A S T 1983 C10 'farm truck' 1976 K20 Suburban 1984 K10 Suburban 1981 Jeep CJ5/350 Vortec 1941 Dodge WC18 Ambulance 2000 GMC Bus (parts warehouse)