Power glide-no reverse

NHRA1926 · 10-29-2020, 04:12 PM

Band adjustment went as follows. Loosened lock nut, turned allen screw clockwise until snug, then turned allen screw counter clockwise 3.5 turns, then tightened lock nut while holding allen screw in place.

63corvette · 10-29-2020, 05:14 PM

Not all solenoids are the same length.
You have to pull the pan to see if the solenoid is pushing the plunger far enough into the valve body.
Not sure about input shaft and gear set however, that would causing a grinding noise I would think.
Good Luck as I know that can be frustrating.
Rick Cates
Canyon, TX

Mike Pearson · 10-29-2020, 08:35 PM

The input shafts are different on the two low gear planetary sets. Typically the 1.76 is the large heavy unit. The 2.08 for a super. Stock application would have been built in the smaller 1.82 carrier. The reverse ring gear is also different between the two.

ss3011 · 10-29-2020, 10:13 PM

Transmission Specialties makes a "Uni-Shaft" which fits both 1.76 and 1.82 ratio's .

ss3011 · 10-29-2020, 10:23 PM

On a PG low gear is just the band on . Reverse is just the Reverse clutch on . The transbrake on , is just the band on and the reverse clutch on . Your brake does not work and you have no reverse . I think possibly your Reverse clutch circuit has a big leak in it . That could be reverse piston seals are leaking or possibly the reverse clutch pack has too much clearance and physically can't clamp the clutch plates ,

SGSST109E · 10-30-2020, 07:55 AM

There is a plate behind the govenor support in the back of the case. If it is missing or not in the correct position you have no reverse.

NHRA1926 · 10-30-2020, 09:26 AM

Talked to my tranny guy. He said it has a BTE universal input shaft that works with both the 2.08 set and the 1.76 set. He did mention to make sure the plunger is actually traveling the correct distance in the valve body. He said I would have to remove the pan, push the solenoid button manually and watch to see if the plunger is covering the channel completely. He did also mention the plate behind the tail shaft housing. There is supposed to be an aluminum/billet plate installed. If that plate is not there, you won't have reverse. I removed the transmission last night, and will be bringing it to him this weekend. Sure is a whole lot of work just to TRY a power glide in the car. I keep breaking the 400, so I'm finally trying some advise from the local racers and trying a power glide. But I am getting pretty proficient at removing and installing transmissions in the car. All for the love of racing.

10-29-2020, 04:12 PM	#1
NHRA1926 Member Join Date: Dec 2015 Location: Bowling green, Ky Posts: 236 Likes: 12 Liked 222 Times in 66 Posts	Re: Power glide-no reverse Band adjustment went as follows. Loosened lock nut, turned allen screw clockwise until snug, then turned allen screw counter clockwise 3.5 turns, then tightened lock nut while holding allen screw in place.

10-29-2020, 05:14 PM	#2
63corvette Senior Member Join Date: Mar 2007 Location: Canyon, Tx Posts: 551 Likes: 127 Liked 353 Times in 102 Posts	Re: Power glide-no reverse Not all solenoids are the same length. You have to pull the pan to see if the solenoid is pushing the plunger far enough into the valve body. Not sure about input shaft and gear set however, that would causing a grinding noise I would think. Good Luck as I know that can be frustrating. Rick Cates Canyon, TX

10-29-2020, 08:35 PM	#3
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,445 Likes: 614 Liked 1,919 Times in 576 Posts	Re: Power glide-no reverse The input shafts are different on the two low gear planetary sets. Typically the 1.76 is the large heavy unit. The 2.08 for a super. Stock application would have been built in the smaller 1.82 carrier. The reverse ring gear is also different between the two. __________________ Mike Pearson 2485 SS

10-29-2020, 10:13 PM	#4
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 909 Likes: 70 Liked 239 Times in 114 Posts	Re: Power glide-no reverse Transmission Specialties makes a "Uni-Shaft" which fits both 1.76 and 1.82 ratio's .

10-29-2020, 10:23 PM	#5
ss3011 Senior Member Join Date: Feb 2002 Location: Southeast Michigan Posts: 909 Likes: 70 Liked 239 Times in 114 Posts	Re: Power glide-no reverse On a PG low gear is just the band on . Reverse is just the Reverse clutch on . The transbrake on , is just the band on and the reverse clutch on . Your brake does not work and you have no reverse . I think possibly your Reverse clutch circuit has a big leak in it . That could be reverse piston seals are leaking or possibly the reverse clutch pack has too much clearance and physically can't clamp the clutch plates ,

10-30-2020, 07:55 AM	#6
SGSST109E Member Join Date: Jun 2007 Location: NJ Posts: 351 Likes: 62 Liked 126 Times in 61 Posts	Re: Power glide-no reverse There is a plate behind the govenor support in the back of the case. If it is missing or not in the correct position you have no reverse.

10-30-2020, 09:26 AM	#7
NHRA1926 Member Join Date: Dec 2015 Location: Bowling green, Ky Posts: 236 Likes: 12 Liked 222 Times in 66 Posts	Re: Power glide-no reverse Talked to my tranny guy. He said it has a BTE universal input shaft that works with both the 2.08 set and the 1.76 set. He did mention to make sure the plunger is actually traveling the correct distance in the valve body. He said I would have to remove the pan, push the solenoid button manually and watch to see if the plunger is covering the channel completely. He did also mention the plate behind the tail shaft housing. There is supposed to be an aluminum/billet plate installed. If that plate is not there, you won't have reverse. I removed the transmission last night, and will be bringing it to him this weekend. Sure is a whole lot of work just to TRY a power glide in the car. I keep breaking the 400, so I'm finally trying some advise from the local racers and trying a power glide. But I am getting pretty proficient at removing and installing transmissions in the car. All for the love of racing.