| Re: shift kit pro's and cons [message #317811 is a reply to message #317730] |
Sat, 20 May 2017 14:28  |
Chris Tyler
Messages: 458
Registered: September 2013
Location: Odessa FL
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Put in a number of 'shift kits' on SOBs years ago. These were Transgo brand as I recall, and were very mild- specificly for towing and RVs. THey only slightly firmed the shifts and required very little modification.
But you will definitly have issues if you put a high performance or race kit in heavy vehicle. It will increase the shock load, and although the 425 is a strong trans you will probably find the weak link.
That being said, ultra smooth barely perceptable Cadilac shifts come at the cost of slippage, and in a heavy high load vehicle would cause wear. I would imagine GM took settings into account for our applications
On a high powered light weight car, they do make a difference in durability.and performance. However, most trans guys I know do their own mods rather than a kit per se. Ill wager Manny boosts the line pressure a bit or tweaks something in the valve body a little without making the shits harder.
76 Glenbrook
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