how can i id the tranny in my truck, or who knows whats in it?
73 3/4t 2wd crew cab shorty, originally with a 360.
cribbs74
05-22-2009, 10:57 AM
Most likely an NP 435. Granny low with direct drive 4th.
dmopar74
05-22-2009, 01:43 PM
thanks. yes most def has the granny low.
what tranny could i put in for more street/performance? sorry im new to manual transmisions.
Speed Dragon
05-22-2009, 02:10 PM
A-833 4-spd would be the easiest, after that would be a NP-535 or AX-15 5-spd ( I have the 535 in mine) which requires a hydraulic clutch conversion and custom driveshaft, after that is the Tremec 3550 or TKO 5-spd, Toyota R154 5-spd, or Tremec T-56 6-spd, all of which run around 500-2000 bucks depending on condition and whether new or used, and require more custom parts such bellhousings, clutch setups, crossmember etc.
dmopar74
05-22-2009, 02:49 PM
hmmmm, sounds like the A 833 is the best solution for a guy with limited funds, or perhaps jusr regear the rear really high. that would give me better highway rpm's too, no? still debating just shoving a 727 in there also.
cribbs74
05-22-2009, 03:36 PM
A 727 still has a 1:1 on final drive so it wouldn't be any better for the money and time spent to do it.
The 833 or rear end change is the best (easiest) option. You will need a 10.5" flywheel/clutch, bellhousing and some minor tunnel mods to make it happen. That way you can keep your rear gear.
dmopar74
05-22-2009, 03:58 PM
Seems as the 833 has a 1:1 ratio as well, unless it was the overdrive version. so no matter what the rear gears would proboably be the easiest for me, and the cheapest.
Speed Dragon
05-22-2009, 10:49 PM
Yeah gears make a big difference. What size tires are you running? Larger tires act like a taller gear, can net you a few more mpg. Will make the speedo read a bit low though unless you change the speedo gear.
dmopar74
05-23-2009, 12:46 AM
the tires right now are 31", but next year i will be getting new shorter tires so the rear gears are best because i cant afford no $3000 overdrive:bawl:
