This is the best that I can do guys, it’s taken out of the “Catalog of Chevy Truck ID Numbers 1946-1972” so I wouldn’t guarantee that it is complete or all correct. But it should get anyone that is searching for a gear for their 3600 or 3800 in the ball park.
The ‘64 series 2000 MA, MD, was a 4.11, not an Eaton HO-52
The ’65 series 2000 HW, was a 4.11, not an Eaton HO-52
The ’66 series 2000 HW, JU, was a 4.11, not an Eaton HO-52
The ’67 series C-20 HW, JU, was a 4.11, not an Eaton HO-52
The ’68 series C-20 HW, JV, was a 4.11, not an Eaton HO-52
The ’68 series C-20 OT, NA, NB, WI, OW, OY, was an Eaton HO-52
The ’69 series C-20 HW, JU was a 4.11, not an Eaton HO-52
The ’69 series C-20 NA, NB, OT, OW, OY, TF, was an Eaton HO-52
The ’69 series C-30 IE, LJ, LZ, MR, NZ, RN, was an Eaton HO-72
The ’70 series C-20 TAA, THU, THW, TJU, TLN, TMZ, TNA, TNB, TOT, TTF, TWI, was an Eaton HO-52
The ’70 series C-30 TIE, TIH, TLJ, TLX, TLZ, TMR, TNZ, TRN, was an Eaton HO-72
The ’70 series K-20 TPW, TPX, was an Eaton HO-52
The ’71 series C-20 TAH, TAJ, TJA, TJB, TIP, TJS, 2G, was an Eaton HO-52
The ’71 series C-30 TAK, TAL, TAP, TJK, TPZ, was an Eaton HO-52
The ’71 series K-20 TKY, TKZ, was a 4.11, not an Eaton HO-52
The ’71 series K-20 TJH, TJJ, TKB, TKC, TKK, TKL, TKS, TKT, was an Eaton HO-52
The ’72 series C-20 RAH, RAJ, RJA, RJB, RKK, RKL, RKS, RKT, RJP, RJS, RKB, RKC, was an Eaton HO-52
The ’72 series C-30 RAK, RAL, RAP, RJK, was an Eaton HO-52
The ’72 series K-20 RKY, RKZ, was a 4.11, not an Eaton HO-52
The ’72 series K-20 RJH, RJJ, was an Eaton HO-52
Denny Graham
Sandwich, IL
Last edited by Denny Graham; 01/29/2010 6:51 PM.
