Originally Posted by Route55
I've only owned two 73-77 trucks. Both were parts trucks, but originally FE motor manual trans f-250 models. Both had 4.10. I've read that 73-77 trucks used a wider array of gear ratios, but for 78-79 I've only seen the two. I'm not saying thats all they used, but the "norm" those two years seems to be manual - 4.10 Automatic - 3.54.
I wasn't doubting you, just adding to the curiosity...even the Early Bronco I robbed parts off of had 3.54's....weird.
The 30-some '70-'89 Chevy's I've parted out have ranged from 2.73, 3.08, 3.54, 3.73, 4.11, and even 4.56 with no real decernable pattern....for once the Ford guys have it "easy".
'46CJ2A, '47CJ2A, '48CJ2A, '50M38, '52M38A1, '62CJ3B, '62CJ5, '65CJ5, (2) '66CJ5's, '67CJ5, '67CJ101 '69CJ5, '69J3000, '70CJ101, '74DJ5, '73CJ5, '74CJ5, '77CJ5, '78CJ5, '78CJ7, '78Waggy, '83CJ7 (2) '95YJ's, '97XJ...One of them runs, kinda.