| Re: Final Drive Options and Recommendations [message #220402 is a reply to message #220331] |
Thu, 29 August 2013 19:40   |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma:
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Read what Mickey SZilagyi wrote on Thu, 29 August 2013 13:12
Mickey,
You have gotten lots of very good answers. If you noticed, there were three things:
- Backlash in the final drive is not all that bad as long as it is not "making metal".
- The 3.07 that your coach came with was wrong. It was wrong when it was built and it is still wrong.
- The 3.70 is the best choice if you have a heavy coach (you do) and/or you may want to tow anything - ever.
The extra piston/miles will be offset by the reduction in load on those same pistons. This is why nobody has seen a fuel rate penalty for the higher numerical final drive.
I have a very light coach. If I needed a final drive, I might consider a 3.55, but then again, it is a 9400# coach. I would also be very hard pressed to not get the limited slip version. For forty years these coaches have been know for not going in poor conditions (like most of Michigan's winters). People that ran them in those conditions all had chains.
Take this all as you choose, there are a few other people out here with automotive power career history. You will hear the same from them.
Matt - refugee from dynoland
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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