Will a 32RH handle a 350 Chevy engine?

[Riley001]

I've seen other spreads like that before...

Here's what AA says about the 32RH:

Torqueflite 999 (32RH)

The Jeep 999 transmission was 1st used in 1980 behind the AMC 258 inline 6 motor. The 999 has stronger holding power versus the 904. This is due to the planetary gear stationary and double-wrap rear band. The 999 also uses more clutch packs and a larger planetary. This is obviously due to the increased torque capacity of the 4.0L engine. Overall, the 999 very capable behind the 258 and can handle most V8 applications. We have found the 999 was also used in rock buggies running heavy horse power V8 engines. Chris Durham is one competitor that ran an upgraded 999 transmission with a V8.

The 999 were used exclusively behind the Dana 300 transfer case in 1980-1986 CJ Jeeps. Later Wranglers would use the NP231 transfer case. Both of these transfer cases utilized the round circular 6 bolt pattern still in use today. The output shaft of the 999 always used a 23 spline shaft and a somewhat long transfer case adapter. Dana 300 transfer cases always had the front drive shaft located on the passenger side of the vehicle. Jeep Wrangler NP231 transfer cases always had the front drive shaft located on the driverside side of the vehicle. It should be noted that we have seen a rotational bolt pattern difference on the 6 bolt pattern on the rear of the Jeep Torqueflite transmissions. This could cause the transfer case to clock differently when using a Wrangler 999 on a Dana 300. Advance Adapters does offer a clocking ring/ longer input to correct the rotation. We sell this under part #50-8604

The Torqueflite 999 transmission used behind the 4.0 I-6 have a provision for the crank positioning sensor. The 999 transmissions found behind the standard 258 in the CJ jeeps will not have this provision.

The 999 is relatively short at 16.5" in over length; however, the tailhousing section adds an additional 6.125". This makes the Jeep 727 an overall length of 22.625".

Torqueflite 999 Gear Ratios First gear: 2.74 Second gear: 1.54 Third gear: 1.00

727 versus 999

Starting in 1980, Jeep used 2 different automatic torqueflite models. The 999 and 727 were chosen. The 727 model is physically larger. Being designed for use with 8 cylinder engines of for heavier-duty applications. Major differences between the 727 and 999 models are in the rear clutch, valve body, kick down servo, planetary gear assemblies and end play adjustments. The 727 has an external characteristic that will identify it from the 999 models: the slope of the converter housing is much more gradual. The difference is readily identifiably by the picture below (picture on left is 727). Also as the picture indicates, the 727 oil pan sticks out significantly more on the passenger side than the 999. This 727 hump can cause greater front driveshaft clearance issues versus a 999.

https://www.motortrend.com/how-to/0701-4wd-jeep-transmission-rebuild

Cheers mate I sent AA an email about using the 350 they said it will be fine with 999 they also have given me a link for performance upgrades if I was going to doing extreme 4w driving with increased hp I can’t remember the company name but I have it so I will put it up for everyone else that’s thinking about this mod so far I’ve got the engine and gearbox box in I’ve worked it out so the gearbox is in it’s original place so no modifications to either tail shafts the engine still has good clearance from firewall and steering just waiting on a set of block huggers then I’ll bolt them on and fabricate a set of engine mounts there’s plenty of clearance for a good size radiator which you can get online to bolt straight in when I get a few of these things done I’ll do a full description of what I have done and what I used and we’re I got it from cheers

 

[Riley001]

Looking forward to seeing some pictures of your engine swap. Have fun with it.

I’ll do a full rundown of the whole process once it’s nearly finished and put up a heap of pictures cheers mate

 

[MBDIAGMAN]

Cheers mate I sent AA an email about using the 350 they said it will be fine with 999 they also have given me a link for performance upgrades if I was going to doing extreme 4w driving with increased hp I can’t remember the company name but I have it so I will put it up for everyone else that’s thinking about this mod so far I’ve got the engine and gearbox box in I’ve worked it out so the gearbox is in it’s original place so no modifications to either tail shafts the engine still has good clearance from firewall and steering just waiting on a set of block huggers then I’ll bolt them on and fabricate a set of engine mounts there’s plenty of clearance for a good size radiator which you can get online to bolt straight in when I get a few of these things done I’ll do a full description of what I have done and what I used and we’re I got it from cheers

You sent Alcoholics Anonymous information on it?

 

[hear]

Keep in mind the 32rh doesn't circulate fluid in park without some kind of modifications. Neutral will be your friend for cooling it down and lubrication while stopped.

It definitely still circulates fluid (although not every component gets juice); the pump is driven 100% of the time. The torque converter won’t charge in park without a few sonnax valve modifications.

But also the A Body mopar guys run 904's on their drag cars. The common upgrades on the 904 (which is a pre-cursor to the 32RH) are to use 4 pinion planets (which the 32RH already has) and to go to a 4th or 5th clutch in the forward drum; the 32RH already has 4 clutches there.

https://www.forabodiesonly.com/mopar/threads/how-much-horsepower-can-the-904-take.157566/

 

[Wildman]

Cheers mate I sent AA an email about using the 350 they said it will be fine with 999 they also have given me a link for performance upgrades if I was going to doing extreme 4w driving with increased hp I can’t remember the company name but I have it so I will put it up for everyone else that’s thinking about this mod so far I’ve got the engine and gearbox box in I’ve worked it out so the gearbox is in it’s original place so no modifications to either tail shafts the engine still has good clearance from firewall and steering just waiting on a set of block huggers then I’ll bolt them on and fabricate a set of engine mounts there’s plenty of clearance for a good size radiator which you can get online to bolt straight in when I get a few of these things done I’ll do a full description of what I have done and what I used and we’re I got it from cheers

Look forward to seeing pictures of the project. Once you have it running we'd love to see videos of it too. Youtube is where most host a video to share on here.