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F800 Allison vacuum modulator
Anybody know a place to buy parts for an Allison MT653? I have a 95 F800 with the 429 gas, and my trans is shifting kinda harsh and seems to be getting to high rpm's before shifting. I think the vacuum modulator may be causing the harsh shifts. I see a bulletin from Allison about a new "purple" modulator correcting harsh shifts, but it says its for carburated engines. It must be something special, because the one place I did find that had it wanted $221 for it! I sure hope the stock modulators are cheaper than that. I have thrown around the idea of switching to a manual cable type shift modulator and doing away witht the vacuum modulator. So like I say, does anyone know of a good place to get Allison parts, particularly shift modulators?
Thanks
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1997 Crew F350 4x4, Reman E4OD, Hughes Performance deep trans pan, 3.5 Rancho Lift, Ladder bars, Bilstein 5125's, Skyjacker steering sabilizer, 35" BFG A/T's, ATS Intercooler, AFE style intake, ATS .95 wastegated exhaust housing, 3" downpipe, 4" exhaust, 4.10 Limited Slip, Warn fender flares, Bully adjustable steps, American Racing wheels, Drilled front rotors, Warn manual hubs.
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