those gears aren't low enough for you roger? I shouldof sold you the dogleg out of my car too.
what about putting a ford 7.5 in your 1200? or is that going to be too wide? you could pick one up and cut it down and run two short side axles. I'm still content with the 8.8 that replaced the rear you now have, although its a little overkill.
welcome to ratsun, cheers.
I'm trying to keep the weight down as less weight is "free" HP by using the lighter H165. I thought of using the Toyota 7.5" and their 8" differentials, but again too heavy. The Datsun H190 would be better suited only if I could find the alloy carrier, but again, the rear end width is just too wide, and besides the gear ratio availability sucks as well as the cost for those units.
I'm currently running the H145 with 4.625, which is too low with only a 4 speed. I really have to baby it to preserve its functionality as the engine that I'm currently running is a little beast (A14, 1494cc) with 14:1 CR, Slover Brother head, twin 44 Mikunis, Elgin camshaft, 78.5 mm Wiseco pistons, forged H-beam connecting rods, lightened valve train, chromemoly pushrods, mushroom lifters, lightened, swirled polished and tuliped stainless steel valves, 2.9 kg chromemoly flywheel, Tilton pressure plate and Tilton solid hub clutch disc, Megasquirt 2 ECU for full ignition control including knock sensor), large tube headers with a 3" collector. The engine pulls extremely hard. The 5-speeds are next to impossible to find these days as I'm currently running the 60-series 4 speed (again having to baby it because of the engine). Running 215x50x13 Kumho tires with medium compound.
The engine pulls very hard all the way to 9K. I've tried the 4.11, which is not bad, but not great when running in 4th gear, especially with my cam, which starts to pull really hard at 4,800 rpm.
That is why the 4.3 would be a good middle ground for me by using the Toyota 6.7 inch T-series with the H165 housing as the H165 housing is just slightly wider than the H145 and still quite light, which will still allow me to run my 8 to 9" wide rear rims without any clearance issues and without any narrowing.
I was also considering the rear ends from the 2WD Geo Tracker/Suzuki Sidekicks (7.5 " R&P) as they have an excellent range of aftermarket LSD and gear ratios for very reasonable prices. Unfortunately, I would have to narrow the axles and housing tubes, re-lug for the 4x4.5" Datsun wheel pattern. Just too much money and the lack of good local machine shops in Kelowna that can tackle this sort of stuff.
Anyway, I'm off to Pick and Pull tomorrow morning to grab the 6.7" pumpkin, and then order the 4.3 from www.weirperformance.com.