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D350 Rear Ratio? #2544031 08/31/18 11:15 PM 08/31/18 11:15 PM
Joined: Jan 2003 Posts: 2,533 Alexandria, LA B Blucuda413 OP master
Blucuda413 OP master B Joined: Jan 2003 Posts: 2,533 Alexandria, LA	What was the standard gear ratio in a 88 D350 powered by a 360??

Re: D350 Rear Ratio? [Re: Blucuda413] #2544050 08/31/18 11:55 PM 08/31/18 11:55 PM
Joined: Feb 2010 Posts: 18,493 Granite Bay CA Kern Dog Striving for excellence
Kern Dog Striving for excellence Joined: Feb 2010 Posts: 18,493 Granite Bay CA	What gear? Axle? First gear of the trans? 727 or 4 speed? 4 Speed with granny low?

Re: D350 Rear Ratio? [Re: Blucuda413] #2544055 09/01/18 12:03 AM 09/01/18 12:03 AM
Joined: Jul 2007 Posts: 4,906 Wills Point, Texas Hugh Jorgan master
Hugh Jorgan master Joined: Jul 2007 Posts: 4,906 Wills Point, Texas	The dreaded 4:10. Here's a good deal on some 3:54s.... https://easttexas.craigslist.org/pts/d/1993-dodge-diesel-ring-and/6684182157.html Last edited by Hugh Jorgan; 09/01/18 12:12 AM.

Re: D350 Rear Ratio? [Re: Blucuda413] #2544058 09/01/18 12:05 AM 09/01/18 12:05 AM
Joined: Dec 2009 Posts: 284 STL ,MO H Handygun enthusiast
Handygun enthusiast H Joined: Dec 2009 Posts: 284 STL ,MO	My 88 360-4v/435 truck was a 4.56 but it was a c/c

Re: D350 Rear Ratio? [Re: Blucuda413] #2544119 09/01/18 02:48 AM 09/01/18 02:48 AM
Joined: Jan 2003 Posts: 2,533 Alexandria, LA B Blucuda413 OP master
Blucuda413 OP master B Joined: Jan 2003 Posts: 2,533 Alexandria, LA	The reason for my question is that I'm going to look at an 88 this weekend and if it's nice enuff I may buy it. My only experience is more than 20 yrs ago I had a 85 D350 with a 360 and it was an extremely strong combo. That old truck had been used up as a wrecker and was in terrible shape except for the running gear. My son used in it calif to tow his race car to LACR and there were none of his friends 454 Chev duallies that could keep up with him going up the grapevine. The thing was great for a 360. I hope this one I'm going to look at will be close in performance.

Re: D350 Rear Ratio? [Re: Blucuda413] #2544450 09/01/18 11:20 PM 09/01/18 11:20 PM
Joined: Jan 2003 Posts: 43,523 Round Lake Beach, Illinoisy Rhinodart Rhinotruck
Rhinodart Rhinotruck Joined: Jan 2003 Posts: 43,523 Round Lake Beach, Illinoisy	Probably a 4.10 as 3.54 would be the only other gear offered. There should be a data sheet affixed to the underside of the hood. The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it. JB Rhinehart, Realist A-Body's RULE!

Re: D350 Rear Ratio? [Re: Rhinodart] #2544592 09/02/18 12:52 PM 09/02/18 12:52 PM
Joined: Dec 2006 Posts: 2,105 Byron, NY W.I.N. Racing top fuel
W.I.N. Racing top fuel Joined: Dec 2006 Posts: 2,105 Byron, NY	there were three ratios available, 4.10, 4.56 and 4.88. none were "standard" there should be a label on the hood that will tell you what ratio came with the truck, also there is a tag in the diff cover. '01 P1500, Blown/Inj BAE,/Veney ,Bruno/CS2,Dana 60 '01 Dodge 3500 S Cummins Auto, Fresh air kit, 4" Exhaust, '05 Dodge Magnum R/T - Too Much to list '60 Willys CJ5 '01 International LPX - Project,DT466, Allison '64 Plymouth Valiant, Inj 528 Hemi, 2spd

Re: D350 Rear Ratio? [Re: Rhinodart] #2545074 09/03/18 01:22 PM 09/03/18 01:22 PM
Joined: May 2006 Posts: 2,046 ky. K kenworth_goose top fuel
kenworth_goose top fuel K Joined: May 2006 Posts: 2,046 ky.	Originally Posted By Rhinodart Probably a 4.10 as 3.54 would be the only other gear offered. There should be a data sheet affixed to the underside of the hood. That would be correct for the 89 and up trucks but the 3.54 wasn't available in the 1 tons until 89. Or until the cummins came out.

Re: D350 Rear Ratio? [Re: kenworth_goose] #2545544 09/04/18 10:39 AM 09/04/18 10:39 AM
Joined: Jan 2003 Posts: 43,523 Round Lake Beach, Illinoisy Rhinodart Rhinotruck
Rhinodart Rhinotruck Joined: Jan 2003 Posts: 43,523 Round Lake Beach, Illinoisy	Originally Posted By kenworth_goose Originally Posted By Rhinodart Probably a 4.10 as 3.54 would be the only other gear offered. There should be a data sheet affixed to the underside of the hood. That would be correct for the 89 and up trucks but the 3.54 wasn't available in the 1 tons until 89. Or until the cummins came out. OK, I stand corrected. My 84 crew cab dually has 4.10's, but I am sure they were changed at some point. The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it. JB Rhinehart, Realist A-Body's RULE!

Re: D350 Rear Ratio? [Re: W.I.N. Racing] #2545844 09/04/18 09:25 PM 09/04/18 09:25 PM
Joined: Dec 2006 Posts: 2,105 Byron, NY W.I.N. Racing top fuel
W.I.N. Racing top fuel Joined: Dec 2006 Posts: 2,105 Byron, NY	Originally Posted By W.I.N. racing there were three ratios available, 4.10, 4.56 and 4.88. none were "standard" there should be a label on the hood that will tell you what ratio came with the truck, also there is a tag in the diff cover. ^^^This info came direct from a 1986 Dodge Service manual^^^ All ratios were spec'd by Eng/trans combo. Wait this just in...found my '92 service manual! First just for clarity... all specs below are for D350 DRW and a Dana 70. The gear options in '92 were...3.54, 4.1 and 4.56 This is due to the 46RH OD trans. 89-91 (non intercooled) had 3.07 with the 727 only and 3.54 & 4.10's with manual trans. All the above information is supported by the Chrysler service manuals for the given year stated. '01 P1500, Blown/Inj BAE,/Veney ,Bruno/CS2,Dana 60 '01 Dodge 3500 S Cummins Auto, Fresh air kit, 4" Exhaust, '05 Dodge Magnum R/T - Too Much to list '60 Willys CJ5 '01 International LPX - Project,DT466, Allison '64 Plymouth Valiant, Inj 528 Hemi, 2spd

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