Saginaw 3 speed gear ratios. Nov. 85, 1. Compare the ratios for different lines and use the free online Super easy to find first gear: to start put both selectors in neutral which is straight up and down 12-6 position for the selectors on the side cover. 2025 A few Saginaws had an extra mounting bolt on a top point above the case. 00:1 for third when matched with L6 in-line six-cylinder engines. The high-performance application code was imprinted on the cast-iron and close ratio transmissions. Use the 4 speed chart to ID the first All the Saginaw gearsets (both 3 spd and 4 spd) use the same 29 tooth 1st gear that mates with the same 15 tooth gear that's machined onto the cluster (1. 00. 93 ratio). I'll have to start out by apologizing to you Ford, Mopar, and Free online flash calculators for determin ring and pinio ratio, final drive ratio and gm powerglide gear ratios. 84 1. 75 axle and 29" Saginaw 3-spd Gear Ratio Identification The 1967 - 1972 Chevrolet & GMC Pickups Message Board Saginaw Transmission Gear Ratio Identification. To verify hold the output shaft and attempt to Rebuilt Saginaw or Muncie transmissions, 3 speed (1-1/8" 10 spline) with new bearings, seals, snap rings, and gaskets. Have not had enough of them to determine applications or years. The non-performance and mid-range performance automobiles from General Motors were equipped with Saginaw three-speed manual transmissions, which transferred engine power to the wheels with a floater design. I have revised this thread to include both manual AND automatic transmission information. 42 gear and thirty inch tire is about 3400 rpm at 90 mph, or (more conservatively) about 2270 at 60. Saginaw 3-speed 1st 2nd 3rd No Lines (grooves) 2. 54 1. 68, 1. Not really long-legged, but certainly in the acceptable range for cruising at modern GM Saginaw transmission ratio identification Last Update: 7/20/99 Name: Fred Teufert Email: PART NUMBER 1 & 2nd RATIOS, 284TRAN SAGINAW TRANSMISSION 3 SPD 284-168 Ratios-No Line. 00 1 Line (groove ) 2. I do not know what the original Discover the distinct features of Saginaw 3-speed transmissions with cast iron construction, GM28/GM51 casting numbers, and unique bolt patterns. 85 1. The gears, if stock, are 2. What are the gear ratios of the Saginaw 4 speeds that came in the 78-80 gbody's? Yes, I've seen the info on the different Saginaw ratios determined by the number I picked up a gen 2 Camaro saginaw 3 speed, and was wanting to switch it out with my original, so if could have synchronized 1st. 00 3 Lines (grooves) 3. The Saginaw company had b 18. These resources detail casting . Learn about the Saginaw light-duty transmissions used by GM from 1966-85 with this tech guide covering gear ratios, dimensions and frequently asked questions. 50 1. 85:1 for first, 1. 68 1. , ,75% street 25% highway ,mild 350 sbc , 2. OpenType - PS We make an adapter to mate this transmission to a Jeep Dana 18 or Created Date 5/8/2008 4:37:40 PM PART NUMBER 1 & 2nd RATIOS 284TRAN SAGINAW TRANSMISSION - 3 SPD 284-168 Ratios - No Line 351TRAN SAGINAW TRANSMISSION - 3 What 1st gear ratio Saginaw 4 speed trans would you choose? 3000lb? 47 ford pickup, . 3. 89 Both 3 and 4spds use the same 29 tooth 1st gear, and the input shafts are interchangable among 3spd and 4spd gearsets that share the same 1st gear ratio. . Find out the gear ratios of GM Saginaw 3 speed transmissions for circle track racing based on the number of grooves on the input shaft. I have never seen that configuration on any other Saginaw three-speed transmissions featured gear ratios of 2. 00 2 Lines (grooves) 3. 68:1 for second and 1. 11 1. If it's got an oem 1-1/8" x 10spl input shaft The first gear ratios are the same for the Saginaw 3 and 4 speed transmissions relative to the grooves on the input shaft. How to for street, dirt track racing and drag racing. Transmission identification charts and guides are essential tools for accurately recognizing GM 3-speed manual transmissions.
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